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provisional-finished-slab-reference; general-steel-reference-alternative5.5in-lower"},{"id":"F46-MG61-B4407-a","columnId":"72","x":-2.2708333333333335,"z":33.541666666666664,"yFt":580.9583333333333,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"general-original-floor46-steel-datum"},{"id":"F46-MG61-B4407-b","columnId":"75","x":26.5625,"z":33.541666666666664,"yFt":580.9583333333333,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"general-original-floor46-steel-datum"},{"id":"F47-BU40-72-75-a","columnId":"72","x":-2.2708333333333335,"z":33.541666666666664,"yFt":593.0416666666666,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"general-original-floor47-steel-datum; connection-offsets-untranscribed"},{"id":"F47-BU40-72-75-b","columnId":"75","x":26.5625,"z":33.541666666666664,"yFt":593.0416666666666,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"general-original-floor47-steel-datum; connection-offsets-untranscribed"},{"id":"F23-MG371-73-74-a","columnId":"73","x":26.5625,"z":-17.458333333333332,"yFt":282.54166666666663,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"original-floor23-general-steel-datum-minus14in-minus-half-depth"},{"id":"F23-MG371-73-74-b","columnId":"74","x":26.5625,"z":13.333333333333334,"yFt":282.54166666666663,"positionStatus":"dimension-transcribed-E12-13","verticalPositionStatus":"original-floor23-general-steel-datum-minus14in-minus-half-depth"}],"members":[{"id":"F8-builtup-N","startNode":"F8-builtup-N-a","endNode":"F8-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":8,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E8_9","frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E8_9-builtup-reference.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F9-builtup-N","startNode":"F9-builtup-N-a","endNode":"F9-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":9,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E8_9","frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E8_9-builtup-reference.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F10-builtup-N","startNode":"F10-builtup-N-a","endNode":"F10-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":10,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F11-builtup-N","startNode":"F11-builtup-N-a","endNode":"F11-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":11,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F12-builtup-N","startNode":"F12-builtup-N-a","endNode":"F12-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":12,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E12_13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E12_13-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F13-builtup-N","startNode":"F13-builtup-N-a","endNode":"F13-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":13,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E12_13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E12_13-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F14-builtup-N","startNode":"F14-builtup-N-a","endNode":"F14-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E14_15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E14_15-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F15-builtup-N","startNode":"F15-builtup-N-a","endNode":"F15-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":15,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E14_15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E14_15-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F16-builtup-N","startNode":"F16-builtup-N-a","endNode":"F16-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":16,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E16_17"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E16_17-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F17-builtup-N","startNode":"F17-builtup-N-a","endNode":"F17-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":17,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E16_17"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E16_17-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F18-builtup-N","startNode":"F18-builtup-N-a","endNode":"F18-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":18,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E18_E19"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E18_E19-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F19-builtup-N","startNode":"F19-builtup-N-a","endNode":"F19-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":19,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E18_E19"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E18_E19-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F20-builtup-N","startNode":"F20-builtup-N-a","endNode":"F20-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":20,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E20"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E20-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F21-builtup-N","startNode":"F21-builtup-N-a","endNode":"F21-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":21,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":["Floor21 north circular penetrations: retained detail shows three symbols without complete hole dimensions."],"sourceIds":["frankel-E21"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E21-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F22-builtup-N","startNode":"F22-builtup-N-a","endNode":"F22-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":22,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E22_23"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F23-builtup-N","startNode":"F23-builtup-N-a","endNode":"F23-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":23,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E22_23"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F24-builtup-N","startNode":"F24-builtup-N-a","endNode":"F24-builtup-N-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":24,"fromColumn":"73","toColumn":"76","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[10.5,-19],[9,-15],[0,-15]],"holes":[[[12,-12],[18,-12],[18,12],[12,12]],[[20,-12],[26.333333333333332,-12],[26.333333333333332,12],[20,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9,-15],[10.5,-19],[28,-19],[28,-20],[10.5,-20],[9,-16],[0,-16]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[12,18],[20,26.333333333333332]],"longitudinalChainFt":[9,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E24"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E24-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F8-builtup-S","startNode":"F8-builtup-S-a","endNode":"F8-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":8,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E8_9","frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E8_9-builtup-reference.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F9-builtup-S","startNode":"F9-builtup-S-a","endNode":"F9-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":9,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E8_9","frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E8_9-builtup-reference.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F10-builtup-S","startNode":"F10-builtup-S-a","endNode":"F10-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":10,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F11-builtup-S","startNode":"F11-builtup-S-a","endNode":"F11-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":11,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E10_11"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F12-builtup-S","startNode":"F12-builtup-S-a","endNode":"F12-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":12,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E12_13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E12_13-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F13-builtup-S","startNode":"F13-builtup-S-a","endNode":"F13-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":13,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E12_13"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E12_13-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F14-builtup-S","startNode":"F14-builtup-S-a","endNode":"F14-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E14_15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E14_15-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F15-builtup-S","startNode":"F15-builtup-S-a","endNode":"F15-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":15,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E14_15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E14_15-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F16-builtup-S","startNode":"F16-builtup-S-a","endNode":"F16-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":16,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E16_17"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E16_17-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F17-builtup-S","startNode":"F17-builtup-S-a","endNode":"F17-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":17,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E16_17"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E16_17-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F18-builtup-S","startNode":"F18-builtup-S-a","endNode":"F18-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":18,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E18_E19"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E18_E19-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F19-builtup-S","startNode":"F19-builtup-S-a","endNode":"F19-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":19,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E18_E19"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E18_E19-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F20-builtup-S","startNode":"F20-builtup-S-a","endNode":"F20-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":20,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E20"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E20-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F21-builtup-S","startNode":"F21-builtup-S-a","endNode":"F21-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":21,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E21"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E21-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F22-builtup-S","startNode":"F22-builtup-S-a","endNode":"F22-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":22,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E22_23"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F23-builtup-S","startNode":"F23-builtup-S-a","endNode":"F23-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":23,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E22_23"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F24-builtup-S","startNode":"F24-builtup-S-a","endNode":"F24-builtup-S-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":24,"fromColumn":"75","toColumn":"78","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28,19],[28,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14,19.5],"size":[12,28,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28,-19],[28,-20],[0,-20]],"note":"North bottom flange includes the source 36-to-40-inch depth taper; sloping-plate edge thickness uses a vertical 1-inch envelope."}],"sectionStatus":"original-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingIntervalsFt":[[3,9],[12.5,19]],"longitudinalChainFt":[3,6,3.5,6.5,9],"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","omittedComponents":[],"sourceIds":["frankel-E24"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E24-builtup-details.png"],"note":"The plate gauges,28ft span, longitudinal openings,24in opening height and8in top/bottom margins are native erection dimensions. E8/9 explicitly refers to E10/11 for these details. Stiffeners, opening reinforcement, welds and end connections are not modeled."},{"id":"F25-builtup-N","startNode":"F25-builtup-N-a","endNode":"F25-builtup-N-b","floor":25,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E25"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E25-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E25-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F25-builtup-S","startNode":"F25-builtup-S-a","endNode":"F25-builtup-S-b","floor":25,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E25"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E25-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E25-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F26-builtup-N","startNode":"F26-builtup-N-a","endNode":"F26-builtup-N-b","floor":26,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E26_27"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F26-builtup-S","startNode":"F26-builtup-S-a","endNode":"F26-builtup-S-b","floor":26,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E26_27"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F27-builtup-N","startNode":"F27-builtup-N-a","endNode":"F27-builtup-N-b","floor":27,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E26_27"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F27-builtup-S","startNode":"F27-builtup-S-a","endNode":"F27-builtup-S-b","floor":27,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[{"centerAlongFt":24.833333333333332,"centerBelowSteelTopIn":20,"diameterIn":3}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]],[[24.958333333333332,0.0],[24.95726394100506,0.19578928833007736],[24.954074061619465,0.3882285676537811],[24.948818274897242,0.5740251485476346],[24.941586508806388,0.7499999999999999],[24.932502500869738,0.913142143513081],[24.92172168098165,1.0606601717798212],[24.909428511959423,1.1900300104368529],[24.895833333333332,1.299038105676658],[24.88116876237897,1.38581929876693],[24.865685713971146,1.4488887394336025],[24.84964910736084,1.4871672920607155],[24.833333333333332,1.5],[24.817017559305825,1.4871672920607155],[24.800980952695518,1.4488887394336025],[24.785497904287695,1.3858192987669302],[24.770833333333332,1.299038105676658],[24.75723815470724,1.1900300104368529],[24.744944985685013,1.0606601717798214],[24.734164165796926,0.9131421435130813],[24.725080157860276,0.7499999999999999],[24.717848391769422,0.5740251485476349],[24.7125926050472,0.38822856765378155],[24.709402725661604,0.19578928833007797],[24.708333333333332,1.8369701987210297e-16],[24.709402725661604,-0.19578928833007764],[24.7125926050472,-0.3882285676537812],[24.717848391769422,-0.5740251485476345],[24.725080157860276,-0.7499999999999997],[24.734164165796926,-0.913142143513081],[24.744944985685013,-1.0606601717798207],[24.75723815470724,-1.1900300104368524],[24.770833333333332,-1.2990381056766576],[24.785497904287695,-1.3858192987669302],[24.800980952695518,-1.4488887394336025],[24.817017559305825,-1.4871672920607155],[24.833333333333332,-1.5],[24.84964910736084,-1.4871672920607157],[24.865685713971146,-1.4488887394336025],[24.88116876237897,-1.3858192987669304],[24.895833333333332,-1.299038105676658],[24.909428511959423,-1.1900300104368535],[24.92172168098165,-1.0606601717798214],[24.932502500869738,-0.9131421435130813],[24.941586508806388,-0.7500000000000007],[24.948818274897242,-0.5740251485476343],[24.954074061619465,-0.38822856765378233],[24.95726394100506,-0.19578928833007753]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E26_27"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F28-builtup-N","startNode":"F28-builtup-N-a","endNode":"F28-builtup-N-b","floor":28,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E28_29"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F28-builtup-S","startNode":"F28-builtup-S-a","endNode":"F28-builtup-S-b","floor":28,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E28_29"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F29-builtup-N","startNode":"F29-builtup-N-a","endNode":"F29-builtup-N-b","floor":29,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E28_29"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F29-builtup-S","startNode":"F29-builtup-S-a","endNode":"F29-builtup-S-b","floor":29,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E28_29"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F30-builtup-N","startNode":"F30-builtup-N-a","endNode":"F30-builtup-N-b","floor":30,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E30_31"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F30-builtup-S","startNode":"F30-builtup-S-a","endNode":"F30-builtup-S-b","floor":30,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E30_31"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F31-builtup-N","startNode":"F31-builtup-N-a","endNode":"F31-builtup-N-b","floor":31,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E30_31"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F31-builtup-S","startNode":"F31-builtup-S-a","endNode":"F31-builtup-S-b","floor":31,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E30_31"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F32-builtup-N","startNode":"F32-builtup-N-a","endNode":"F32-builtup-N-b","floor":32,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E32_33"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F32-builtup-S","startNode":"F32-builtup-S-a","endNode":"F32-builtup-S-b","floor":32,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E32_33"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F33-builtup-N","startNode":"F33-builtup-N-a","endNode":"F33-builtup-N-b","floor":33,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E32_33"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F33-builtup-S","startNode":"F33-builtup-S-a","endNode":"F33-builtup-S-b","floor":33,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E32_33"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F34-builtup-N","startNode":"F34-builtup-N-a","endNode":"F34-builtup-N-b","floor":34,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E34_35"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F34-builtup-S","startNode":"F34-builtup-S-a","endNode":"F34-builtup-S-b","floor":34,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E34_35"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F35-builtup-N","startNode":"F35-builtup-N-a","endNode":"F35-builtup-N-b","floor":35,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E34_35"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F35-builtup-S","startNode":"F35-builtup-S-a","endNode":"F35-builtup-S-b","floor":35,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E34_35"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F36-builtup-N","startNode":"F36-builtup-N-a","endNode":"F36-builtup-N-b","floor":36,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E36_37"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F36-builtup-S","startNode":"F36-builtup-S-a","endNode":"F36-builtup-S-b","floor":36,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E36_37"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F37-builtup-N","startNode":"F37-builtup-N-a","endNode":"F37-builtup-N-b","floor":37,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E36_37"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F37-builtup-S","startNode":"F37-builtup-S-a","endNode":"F37-builtup-S-b","floor":37,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E36_37"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F38-builtup-N","startNode":"F38-builtup-N-a","endNode":"F38-builtup-N-b","floor":38,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E38_39"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F38-builtup-S","startNode":"F38-builtup-S-a","endNode":"F38-builtup-S-b","floor":38,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E38_39"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F39-builtup-N","startNode":"F39-builtup-N-a","endNode":"F39-builtup-N-b","floor":39,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E38_39"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F39-builtup-S","startNode":"F39-builtup-S-a","endNode":"F39-builtup-S-b","floor":39,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E38_39"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F40-builtup-N","startNode":"F40-builtup-N-a","endNode":"F40-builtup-N-b","floor":40,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E40_41"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F40-builtup-S","startNode":"F40-builtup-S-a","endNode":"F40-builtup-S-b","floor":40,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E40_41"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F41-builtup-N","startNode":"F41-builtup-N-a","endNode":"F41-builtup-N-b","floor":41,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E40_41"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F41-builtup-S","startNode":"F41-builtup-S-a","endNode":"F41-builtup-S-b","floor":41,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E40_41"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F42-builtup-N","startNode":"F42-builtup-N-a","endNode":"F42-builtup-N-b","floor":42,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E42_43"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F42-builtup-S","startNode":"F42-builtup-S-a","endNode":"F42-builtup-S-b","floor":42,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E42_43"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F43-builtup-N","startNode":"F43-builtup-N-a","endNode":"F43-builtup-N-b","floor":43,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E42_43"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F43-builtup-S","startNode":"F43-builtup-S-a","endNode":"F43-builtup-S-b","floor":43,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E42_43"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F44-builtup-N","startNode":"F44-builtup-N-a","endNode":"F44-builtup-N-b","floor":44,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[{"centerAlongFt":7,"centerBelowSteelTopIn":18.5,"diameterIn":6}],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]],[[7.25,1.5],[7.247861215343453,1.8915785766601547],[7.241481456572267,2.276457135307562],[7.2309698831278215,2.6480502970952693],[7.216506350946109,3.0],[7.198338335072809,3.326284287026162],[7.1767766952966365,3.6213203435596424],[7.15219035725218,3.8800600208737057],[7.125,4.098076211353316],[7.095670858091273,4.27163859753386],[7.06470476127563,4.397777478867205],[7.032631548055013,4.474334584121431],[7.0,4.5],[6.967368451944987,4.474334584121431],[6.93529523872437,4.397777478867205],[6.904329141908728,4.27163859753386],[6.875,4.098076211353316],[6.84780964274782,3.8800600208737057],[6.8232233047033635,3.621320343559643],[6.801661664927191,3.3262842870261626],[6.783493649053891,3.0],[6.7690301168721785,2.6480502970952697],[6.758518543427733,2.276457135307563],[6.752138784656547,1.891578576660156],[6.75,1.5000000000000004],[6.752138784656547,1.1084214233398448],[6.758518543427733,0.7235428646924376],[6.7690301168721785,0.35194970290473093],[6.783493649053891,6.661338147750939e-16],[6.801661664927191,-0.32628428702616197],[6.8232233047033635,-0.6213203435596415],[6.84780964274782,-0.8800600208737048],[6.875,-1.0980762113533151],[6.904329141908728,-1.2716385975338604],[6.93529523872437,-1.397777478867205],[6.967368451944987,-1.474334584121431],[7.0,-1.5],[7.032631548055013,-1.4743345841214315],[7.06470476127563,-1.397777478867205],[7.095670858091272,-1.2716385975338609],[7.125,-1.098076211353316],[7.15219035725218,-0.880060020873707],[7.1767766952966365,-0.6213203435596428],[7.198338335072808,-0.32628428702616263],[7.216506350946109,-1.3322676295501878e-15],[7.2309698831278215,0.3519497029047314],[7.241481456572267,0.7235428646924353],[7.247861215343453,1.1084214233398448]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E44_45"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F44-builtup-S","startNode":"F44-builtup-S-a","endNode":"F44-builtup-S-b","floor":44,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E44_45"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F45-builtup-N","startNode":"F45-builtup-N-a","endNode":"F45-builtup-N-b","floor":45,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"70","toColumn":"73","detail":"N","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[9.833333333333334,1.5,1.5,6,2,6.333333333333333,1.6666666666666665],"openingIntervalsFt":[[12.833333333333334,18.833333333333332],[20.833333333333332,27.166666666666668]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[11.333333333333334,-19],[9.833333333333334,-15],[0,-15]],"holes":[[[12.833333333333334,-12],[18.833333333333332,-12],[18.833333333333332,12],[12.833333333333334,12]],[[20.833333333333332,-12],[27.166666666666668,-12],[27.166666666666668,12],[20.833333333333332,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-15],[9.833333333333334,-15],[11.333333333333334,-19],[28.833333333333332,-19],[28.833333333333332,-20],[11.333333333333334,-20],[9.833333333333334,-16],[0,-16]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E44_45"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-overview.png"],"omittedComponents":["Floor45 revised circular penetrations: exact diameters and revised chain still require transcription.","Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F45-builtup-S","startNode":"F45-builtup-S-a","endNode":"F45-builtup-S-b","floor":45,"kind":"beam","role":"interior","layer":"interiorBeams","fromColumn":"72","toColumn":"75","detail":"S","section":{"designation":"BU40-12\u00d71-3/4","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"sectionStatus":"original-erection-plate-dimensions-and-opening-chains","openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","steelGrade":"A572 Grade50","sourceIds":["frankel-E44_45"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-overview.png"],"omittedComponents":["Fitted stiffeners, opening reinforcement, welds and end connections."],"note":"Each floor is tied to its original erection sheet. Upper N/S girders occupy C70\u201373/C72\u201375, with a28ft10in chain and source-dimensioned24in openings. North bottom flange tapers from36in to40in; its sloped flange uses a vertical1in envelope."},{"id":"F14-MG141-65-68","startNode":"F14-MG141-65-68-a","endNode":"F14-MG141-65-68-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"65","toColumn":"68","section":{"designation":"MG141","family":"built-up-wide-flange","dimensionsIn":{"width":7,"depth":15,"flangeThickness":1,"webThickness":0.375}},"sectionStatus":"original-plate-girder-schedule-dimensions","steelGrade":"Grade50","sourceIds":["frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG-full-table.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG141-labels.png"],"note":"Original Floor14 replacement plate girder. Overall15-inch depth closes as13-inch web plus two1-inch flanges; no nominal W-section substitution. Connections, stiffeners and local offsets remain untranscribed."},{"id":"F14-MG141-68-71","startNode":"F14-MG141-68-71-a","endNode":"F14-MG141-68-71-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"68","toColumn":"71","section":{"designation":"MG141","family":"built-up-wide-flange","dimensionsIn":{"width":7,"depth":15,"flangeThickness":1,"webThickness":0.375}},"sectionStatus":"original-plate-girder-schedule-dimensions","steelGrade":"Grade50","sourceIds":["frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG-full-table.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG141-labels.png"],"note":"Original Floor14 replacement plate girder. Overall15-inch depth closes as13-inch web plus two1-inch flanges; no nominal W-section substitution. Connections, stiffeners and local offsets remain untranscribed."},{"id":"F14-MG142-66-69","startNode":"F14-MG142-66-69-a","endNode":"F14-MG142-66-69-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"66","toColumn":"69","section":{"designation":"MG142","family":"built-up-wide-flange","dimensionsIn":{"width":10,"depth":15,"flangeThickness":1,"webThickness":0.5}},"sectionStatus":"original-plate-girder-schedule-dimensions","steelGrade":"Grade50","sourceIds":["frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG-full-table.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG142-labels.png"],"note":"Original Floor14 replacement plate girder. Overall15-inch depth closes as13-inch web plus two1-inch flanges; no nominal W-section substitution. Connections, stiffeners and local offsets remain untranscribed."},{"id":"F14-MG142-69-72","startNode":"F14-MG142-69-72-a","endNode":"F14-MG142-69-72-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":14,"fromColumn":"69","toColumn":"72","section":{"designation":"MG142","family":"built-up-wide-flange","dimensionsIn":{"width":10,"depth":15,"flangeThickness":1,"webThickness":0.5}},"sectionStatus":"original-plate-girder-schedule-dimensions","steelGrade":"Grade50","sourceIds":["frankel-E14-15"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG-full-table.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG142-labels.png"],"note":"Original Floor14 replacement plate girder. Overall15-inch depth closes as13-inch web plus two1-inch flanges; no nominal W-section substitution. Connections, stiffeners and local offsets remain untranscribed."},{"id":"F46-MG61-A4407","startNode":"F46-MG61-A4407-a","endNode":"F46-MG61-A4407-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":46,"fromColumn":"70","toColumn":"73","section":{"designation":"MG61 / A4407","family":"built-up-wide-flange","dimensionsIn":{"width":16,"depth":24,"flangeThickness":3,"webThickness":1}},"plateParts":[{"name":"18\u00d71-inch web","center":[0,14.416666666666666,0],"size":[1,28.708333333333332,18]},{"name":"16\u00d73-inch top flange; local A4407 cut unmodeled","center":[0,14.416666666666666,10.5],"size":[16,27.499999999999996,3]},{"name":"16\u00d73-inch bottom flange; local A4407 cut unmodeled","center":[0,14.416666666666666,-10.5],"size":[16,27.499999999999996,3]}],"sectionStatus":"original-shop-plate-dimensions-and-longitudinal-envelopes; local-cuts-and-connections-partial","steelGrade":"A572 Grade42","shopMark":"A4407","webBodyLengthFt":28.708333333333332,"flangeBodyLengthFt":27.5,"plateEndRegistrationStatus":"dimension-chain-derived:0.75in-web-setback-from-column-axis,7.25in-flange-setback-from-web-end","localTopOffset":{"printedFt":-2.875,"displayReference":"finished-slab","referenceStatus":"unresolved; general-steel-reference-alternative5.5in-lower"},"unmodeledFlangeCut":{"sourceText":"10ft0 cut to6in wide N/S of top and bottom flange","lengthFt":10,"startsAfterWebEndIn":7.25,"status":"near-side-cut interpretation and local cross-section remain unmodeled"},"sourceIds":["frankel-e46","frankel-shop4407"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/4407-MG61-A.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/S-12-core-east.png"],"note":"Original MG61 plate girder:24-inch overall depth closes as18-inch web plus two3-inch flanges. Web and flange body lengths follow shop4407. A4407 local ten-foot near-side flange cut and attachment/stiffener details are unmodeled. A4407 printed\u22122ft10.5in datum is displayed from finished slab provisionally; using general steel instead would be5.5in lower."},{"id":"F46-MG61-B4407","startNode":"F46-MG61-B4407-a","endNode":"F46-MG61-B4407-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":46,"fromColumn":"72","toColumn":"75","section":{"designation":"MG61 / B4407","family":"built-up-wide-flange","dimensionsIn":{"width":16,"depth":24,"flangeThickness":3,"webThickness":1}},"plateParts":[{"name":"18\u00d71-inch web","center":[0,14.416666666666666,0],"size":[1,28.708333333333332,18]},{"name":"16\u00d73-inch top flange; local A4407 cut unmodeled","center":[0,14.416666666666666,10.5],"size":[16,27.499999999999996,3]},{"name":"16\u00d73-inch bottom flange; local A4407 cut unmodeled","center":[0,14.416666666666666,-10.5],"size":[16,27.499999999999996,3]}],"sectionStatus":"original-shop-plate-dimensions-and-longitudinal-envelopes; local-cuts-and-connections-partial","steelGrade":"A572 Grade42","shopMark":"B4407","webBodyLengthFt":28.708333333333332,"flangeBodyLengthFt":27.5,"plateEndRegistrationStatus":"dimension-chain-derived:0.75in-web-setback-from-column-axis,7.25in-flange-setback-from-web-end","localTopOffset":null,"unmodeledFlangeCut":null,"sourceIds":["frankel-e46","frankel-shop4407"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/4407-MG61-B.png","analysis/wtc7-blueprint-reconstruction/interior-source-crops/S-12-core-east.png"],"note":"Original MG61 plate girder:24-inch overall depth closes as18-inch web plus two3-inch flanges. Web and flange body lengths follow shop4407. A4407 local ten-foot near-side flange cut and attachment/stiffener details are unmodeled. A4407 printed\u22122ft10.5in datum is displayed from finished slab provisionally; using general steel instead would be5.5in lower."},{"id":"F47-BU40-72-75","startNode":"F47-BU40-72-75-a","endNode":"F47-BU40-72-75-b","kind":"beam","role":"interior","layer":"interiorBeams","floor":47,"fromColumn":"72","toColumn":"75","section":{"designation":"40-inch BU / A2330","family":"built-up-wide-flange","dimensionsIn":{"width":12,"depth":40,"flangeThickness":1,"webThickness":0.75}},"lengthFt":28.833333333333332,"longitudinalChainFt":[3,6,3.5,6.5,9.833333333333334],"openingIntervalsFt":[[3,9],[12.5,19]],"circularOpenings":[],"plateParts":[{"name":"three-quarter-inch web with dimensioned openings","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":0.75,"profilePolygon":[[0,19],[28.833333333333332,19],[28.833333333333332,-19],[0,-19]],"holes":[[[3,-12],[9,-12],[9,12],[3,12]],[[12.5,-12],[19,-12],[19,12],[12.5,12]]],"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins"},{"name":"12\u00d71-inch top flange","center":[0,14.416666666666666,19.5],"size":[12,28.833333333333332,1]},{"name":"12\u00d71-inch bottom flange envelope","alongStartFt":0,"alongEndFt":28.833333333333332,"centerAcrossIn":0,"thicknessIn":12,"profilePolygon":[[0,-19],[28.833333333333332,-19],[28.833333333333332,-20],[0,-20]]}],"openingHeightIn":24,"openingDisplayCenterDepthIn":0,"openingPlacementStatus":"source24in-opening-and8in-top-and-bottom-margins","sectionStatus":"original-erection-plate-dimensions-and-referred-detail-openings","sourceIds":["frankel-e47","frankel-E44_45"],"sourceCrops":["analysis/wtc7-blueprint-reconstruction/interior-source-crops/E47-core-middle.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png"],"note":"E47 actual40-inch built-up girder atC72\u201375 explicitly refers to Detail S on E44/45. Its two24in-high openings use that detail. Stiffeners, opening reinforcement and local connections remain unmodeled. S13 differs and is not substituted."},{"floor":23,"fromColumn":"73","toColumn":"74","designation":"MG371","erectionMark":"A3091","steelTopOffsetIn":-14,"steelTopOffsetReference":"general-floor-top-of-steel","section":{"designation":"MG371 / A3091","family":"built-up-wide-flange","dimensionsIn":{"width":7,"depth":36,"flangeThickness":2.5,"webThickness":1.25}},"sourceIds":["frankel-E22_23"],"sourceSheet":"E22_23","sourceCrops":["analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E23-C73-C75-axis-native.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E23-MG371-section-note.png","analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-steel-datum-note.png"],"sourceStatus":"native-erection-transcription","notes":["The section note is 7\u00d72\u00bd flange;31\u00d71\u00bc web;A36. The adjacent W36\u00d7135 B3094 belongs to the intermediate beam west of the73\u201374 column line."],"limitations":["Workpoint span only; stiffeners, holes and shop end details remain unmodeled."],"id":"F23-MG371-73-74","startNode":"F23-MG371-73-74-a","endNode":"F23-MG371-73-74-b","kind":"beam","role":"interior","layer":"interiorBeams","steelTopYFt":284.04166666666663,"sectionStatus":"original-floor23-part-plan-plate-dimensions","steelGrade":"A36","note":"E22/23 part-plan MG371 atC73\u201374,14in below general floor top of steel. Seven-inch-wide2.5in flanges and31\u00d71.25in web establish the36in section. Adjacent intermediate W36 beam is a separate member. Stiffeners, holes and shop end cuts remain unmodeled."}],"counts":{"details":10,"floors":40,"members":84,"primaryPlates":252,"webOpenings":175,"lowerTypicalBuiltups":28,"computerFloorBuiltups":7,"upperTypicalBuiltups":42,"floor14MGs":4,"floor46MG61s":2,"floor47Builtups":1},"transcribedUnmodeledCallouts":[{"item":"opening-reinforcement","plateIn":[5.5,1],"location":"both sides","status":"orientation and ends untranscribed"},{"item":"fitted-stiffeners","plateIn":[5.5,0.75],"location":"both sides","status":"longitudinal/vertical fit details incompletely transcribed"},{"item":"weld-size","sizeIn":0.3125,"status":"callout retained; weld lengths/locations not modeled"}],"sources":[{"id":"frankel-E12-13","sheet":"E12/13","path":"sources/wtc7/drawings/NIST-FOIA-09-49/NIST_WTC7_FOIA_09-49/2010-10-13, WTC 7 Structural/E12 13.tif","crop":"analysis/wtc7-blueprint-reconstruction/interior-source-crops/E12-builtup-details-N-S.png"},{"id":"frankel-E14-15","sheet":"E14/15","path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E14_15.tif","crop":"analysis/wtc7-blueprint-reconstruction/interior-source-crops/E14-15-MG-full-table.png"},{"id":"frankel-shop4407","sheet":"4407","path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_Details_2/Detail Sheets 2/7WTC - D2/4407.TIF"},{"id":"frankel-e47","sheet":"E47","path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/e47.tif"},{"id":"frankel-E25","sheet":"E25","floors":[25],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E25.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E25-builtup-details.png"},{"id":"frankel-E26_27","sheet":"E26_27","floors":[26,27],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E26_27.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E26_27-builtup-details.png"},{"id":"frankel-E28_29","sheet":"E28_29","floors":[28,29],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E28_29.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E28_29-builtup-details.png"},{"id":"frankel-E30_31","sheet":"E30_31","floors":[30,31],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E30_31.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E30_31-builtup-details.png"},{"id":"frankel-E32_33","sheet":"E32_33","floors":[32,33],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E32_33.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E32_33-builtup-details.png"},{"id":"frankel-E34_35","sheet":"E34_35","floors":[34,35],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E34_35.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E34_35-builtup-details.png"},{"id":"frankel-E36_37","sheet":"E36_37","floors":[36,37],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E36_37.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E36_37-builtup-details.png"},{"id":"frankel-E38_39","sheet":"E38_39","floors":[38,39],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E38_39.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E38_39-builtup-details.png"},{"id":"frankel-E40_41","sheet":"E40_41","floors":[40,41],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E40_41.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E40_41-builtup-details.png"},{"id":"frankel-E42_43","sheet":"E42_43","floors":[42,43],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E42_43.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E42_43-builtup-details.png"},{"id":"frankel-E44_45","sheet":"E44_45","floors":[44,45],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E44_45.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E44_45-builtup-details.png"},{"id":"frankel-E8_9","sheet":"E8_9","floors":[8,9],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E8_9.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E8_9-builtup-reference.png"},{"id":"frankel-E10_11","sheet":"E10_11","floors":[10,11],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E10_11.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E10_11-builtup-details.png"},{"id":"frankel-E12_13","sheet":"E12_13","floors":[12,13],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E12_13.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E12_13-builtup-details.png"},{"id":"frankel-E14_15","sheet":"E14_15","floors":[14,15],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E14_15.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E14_15-builtup-details.png"},{"id":"frankel-E16_17","sheet":"E16_17","floors":[16,17],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E16_17.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E16_17-builtup-details.png"},{"id":"frankel-E18_E19","sheet":"E18_E19","floors":[18,19],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E18_E19.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E18_E19-builtup-details.png"},{"id":"frankel-E20","sheet":"E20","floors":[20],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E20.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E20-builtup-details.png"},{"id":"frankel-E21","sheet":"E21","floors":[21],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E21.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E21-builtup-details.png"},{"id":"frankel-E22_23","sheet":"E22_23","floors":[22,23],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E22_23.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E22_23-builtup-details.png"},{"id":"frankel-E24","sheet":"E24","floors":[24],"path":"sources/wtc7/drawings/expanded-releases/12-009/NIST_WTC7_FOIA_12-009/NIST_WTC7_FOIA_12-009_WTC7_E_Sheets/E Sheets/7WTC - E1/E24.tif","crop":"analysis/wtc7-blueprint-reconstruction/rereview-source-crops/E24-builtup-details.png"}],"limitations":["All emitted N/S rectangular windows use explicit24in heights and8in edge margins. Circular callouts without fully read dimensions are not fabricated.","Computer-floor21\u201323 N/S members have no local elevation qualifier and use their general steel datum; MG371 on23 uses explicit minus14in. Native E21 north circles lack complete dimensions and remain omitted.","North taper envelope uses vertical flange gauge; slope-normal fabrication thickness, welds, stiffeners and connections remain unresolved.","MG61 web/flange body lengths are from shop4407. Its A4407 flange cut is retained as metadata; the\u22122ft10.5in offset reference remains provisional.","Floor45 revised north circular openings are not emitted pending exact diameter/chain transcription; all rectangular windows are modeled.","Column workpoints and general top-of-steel datums do not establish all fabricated cut lengths, end eccentricities or as-built tolerances."]}