{"schemaVersion":2,"status":"reviewable coarse source digitization; not finite-element nodal output","coordinateFrame":{"x":"east positive, feet from building center","z":"south positive, feet from building center","vertical":"down positive, inches; up is negative"},"referenceState":{"status":"unresolved in published full-floor captions","facts":["1-6C p107: impact-damaged full-floor model first loaded by gravity; thermal histories then applied path-dependently.","1-6C p95: severed members removed; impact-simulation deformed mesh not imported as an exact shared initial state."],"usage":"The floor field uses compatible reference framing without adding the selected impact interior displacement. The exterior retains the observed impact geometry; the floor-96 wall overlay on it is explicitly illustrative because the two sources do not establish a verified common reference state."},"limitations":["Preliminary Ai/Bi/Ci cases; do not relabel as final A/B/C global model results.","Samples are midpoints of nine rendered contour color bands, not NIST node values.","Plan coordinates approximate because horizontal deformations also magnified 5x; allow about5ft spatial uncertainty.","Values sampled from truss-only top views. Slab surfaces and truss members can have different extrema.","Case Ai WTC1 north sag reduces as it cools; maxima across different floors are not simultaneous.","WTC2 60min is model time, later than actual collapse initiation approximately56min after impact.","Finite element floor analysis omitted creep and used simplified connections; this is not a fully coupled replay.","Smooth interpolation between sample points and times is an explanatory reconstruction. Retain impact void masks and do not use nearest sample to bridge missing regions.","Whole top-view-without-slab extrema on floors93 and99 include core beams; office-floor samples exclude core displacement. Do not rescale office shapes to those extrema. Preserve upward displacement onFloor99.","Observed impact-panel geometry is retained in thermal views. Added floor-96 wall displacement is an illustrative registration of separate sources, not a coupled NIST solution; unassigned vertices keep their original position."],"states":[{"id":"WTC1-F93-Ai-30min","tower":1,"floor":93,"case":"Ai","minutesAfterImpactModel":30,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":171,"printedPage":123,"figure":"5-74","panel":"b","panelDescription":"Top view without concrete slab","figureImage":"NCSTAR1-6C_fig5-74_F93-source.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[387,387],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Only visible colored structural pixels in the office-floor domain outside nominal core. White plot gaps and ordinary core beam cells are not zero-displacement samples."},"trussPanelUZExtremaIn":[-5.372,3.54],"reportedWholeModelMaximumDownIn":5.427,"extremaNote":"Top view without slab includes core beams as well as office trusses. Published maximum is not necessarily in the sampled office-floor domain; never rescale the office field to the whole-model or full-panel maximum.","coarseMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[-56.4,-46.2],"zRangeFt":[9.1,20.4],"downIntervalIn":[4.382,5.372],"domain":"all plotted structural members, including core"},"colorPaletteRGB":[[0,0,255],[0,179,255],[0,255,255],[0,255,179],[1,255,0],[179,255,0],[255,255,0],[255,179,0],[255,0,0]],"colorBandWidthIn":0.99,"points":[{"xFt":-99.8,"zFt":-99.8,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[379,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":-79.4,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[341,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-60.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[305,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-40.3,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[268,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-19.9,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[230,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-0.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[193,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":19.9,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[156,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":40.3,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[118,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":60.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[81,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":80.0,"downIn":-1.06,"downIntervalIn":[-1.56,-0.569],"sourcePixel":[44,7],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":99.8,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[7,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.0,"zFt":-102.5,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[384,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.0,"zFt":-80.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[342,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-83.2,"zFt":-60.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[305,38],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-81.6,"zFt":-37.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[262,41],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.0,"zFt":-23.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[236,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-81.6,"zFt":2.7,"downIn":-1.06,"downIntervalIn":[-1.56,-0.569],"sourcePixel":[188,41],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-81.6,"zFt":23.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[150,41],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-81.6,"zFt":42.9,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[113,41],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-83.2,"zFt":60.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[81,38],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.0,"zFt":80.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[44,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.0,"zFt":102.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[3,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-60.1,"zFt":-102.5,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[384,81],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-56.9,"zFt":-80.0,"downIn":-2.05,"downIntervalIn":[-2.55,-1.56],"sourcePixel":[342,87],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-56.9,"zFt":-60.1,"downIn":-1.06,"downIntervalIn":[-1.56,-0.569],"sourcePixel":[305,87],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-56.9,"zFt":60.1,"downIn":-1.06,"downIntervalIn":[-1.56,-0.569],"sourcePixel":[81,87],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-56.9,"zFt":80.0,"downIn":-1.06,"downIntervalIn":[-1.56,-0.569],"sourcePixel":[44,87],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-60.1,"zFt":102.0,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[3,81],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-40.3,"zFt":-102.5,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[384,118],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-37.0,"zFt":-80.0,"downIn":-2.05,"downIntervalIn":[-2.55,-1.56],"sourcePixel":[342,124],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-37.0,"zFt":-60.1,"downIn":-0.07,"downIntervalIn":[-0.569,0.421],"sourcePixel":[305,124],"colorBand":5,"kind":"digitized_truss_contour_band_midpoin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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F93-Ai-30min-samples.png","sampledMaximumUpIn":3.04,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":2,"xRangeFt":[-68.7,-67.6],"zRangeFt":[16.6,16.6],"downIntervalIn":[2.401,3.392],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[30],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[98],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[],"corePeakCaution":true,"removedFloorRects":[],"openingNote":"no large missing tenant-floor region visible in this source snapshot","evidenceAssets":["NCSTAR1-6C_fig5-74_F93-source.png"]},{"id":"WTC1-F94-Ai-100min","tower":1,"floor":94,"case":"Ai","minutesAfterImpactModel":100,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":172,"printedPage":124,"figure":"5-75","panel":"b","panelDescription":"Top view without concrete slab","figureImage":"NCSTAR1-6C_fig5-75_F94-source.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[388,388],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Only visible colored structural pixels in the office-floor domain outside nominal core. White plot gaps and ordinary core beam cells are not zero-displacement samples."},"trussPanelUZExtremaIn":[-12.494,6.784],"reportedWholeModelMaximumDownIn":13.461,"extremaNote":"Top view without slab includes core beams as well as office trusses. Published maximum is not necessarily in the sampled office-floor domain; never rescale the office field to the whole-model or full-panel maximum.","coarseMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[3.5,4.0],"zRangeFt":[95.0,103.0],"downIntervalIn":[10.352,12.494],"domain":"all plotted structural members, including 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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F94-Ai-100min-samples.png","sampledMaximumUpIn":5.71,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[3.5,4.0],"zRangeFt":[95.0,103.0],"downIntervalIn":[10.352,12.494],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[100],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[96],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[],"corePeakCaution":false,"removedFloorRects":[],"openingNote":"no large missing tenant-floor region visible in this source snapshot","evidenceAssets":["NCSTAR1-6C_fig5-75_F94-source.png"]},{"id":"WTC1-F95-Ai-10min","tower":1,"floor":95,"case":"Ai","minutesAfterImpactModel":10,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":172,"printedPage":124,"figure":"5-76","panel":"b","panelDescription":"Top view without concrete slab","figureImage":"NCSTAR1-6C_fig5-76_F95-source.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[386,385],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Only visible colored structural pixels in the office-floor domain outside nominal core. White plot gaps and ordinary core beam cells are not zero-displacement samples."},"trussPanelUZExtremaIn":[-30.881,4.75],"reportedWholeModelMaximumDownIn":30.881,"extremaNote":"Top view without slab includes core beams as well as office trusses. Published maximum is not necessarily in the sampled office-floor domain; never rescale the office field to the whole-model or full-panel maximum.","coarseMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[29.7,43.7],"zRangeFt":[-81.5,-61.1],"downIntervalIn":[26.922,30.881],"domain":"all plotted structural members, including core"},"colorPaletteRGB":[[0,0,255],[0,179,255],[0,255,255],[0,255,179],[1,255,0],[179,255,0],[255,255,0],[255,179,0],[255,0,0]],"colorBandWidthIn":3.959,"points":[{"xFt":-99.8,"zFt":-99.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[378,7],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":-79.4,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[340,7],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":-60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[304,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":-40.1,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[267,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":-19.6,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[229,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":0.3,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[192,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":20.2,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[155,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":40.1,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[118,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.5,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,2],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,7],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":99.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[7,7],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.3,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,45],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":-79.4,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[340,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-83.1,"zFt":-60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[304,38],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":-42.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[272,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":-22.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[235,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":-3.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[198,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":17.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[161,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-81.5,"zFt":42.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[113,41],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-83.1,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,38],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-79.8,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-59.3,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,82],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.1,"zFt":-79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[341,75],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.1,"zFt":-60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[304,75],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.1,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,75],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.1,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,75],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-59.9,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,81],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-39.4,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,119],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-43.2,"zFt":-79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[341,112],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-43.2,"zFt":-60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[304,112],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-43.2,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,112],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-43.2,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,112],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-39.9,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,118],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-23.2,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,149],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-23.2,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,149],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-20.0,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,155],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,186],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,186],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":99.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[7,186],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":23.2,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,235],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":23.2,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,235],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":20.0,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,229],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":38.8,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,264],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":43.2,"zFt":-79.9,"downIn":24.94,"downIntervalIn":[22.963,26.922],"sourcePixel":[341,272],"colorBand":1,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":37.2,"zFt":-60.0,"downIn":24.94,"downIntervalIn":[22.963,26.922],"sourcePixel":[304,261],"colorBand":1,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":43.2,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,272],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":43.2,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,272],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":39.9,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,266],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":59.9,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,303],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":63.1,"zFt":-79.9,"downIn":24.94,"downIntervalIn":[22.963,26.922],"sourcePixel":[341,309],"colorBand":1,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":57.2,"zFt":-60.0,"downIn":20.98,"downIntervalIn":[19.004,22.963],"sourcePixel":[304,298],"colorBand":2,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":63.1,"zFt":60.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[81,309],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":63.1,"zFt":79.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[44,309],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":59.9,"zFt":102.5,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[2,303],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":-102.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[382,340],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":-79.9,"downIn":17.02,"downIntervalIn":[15.045,19.004],"sourcePixel":[341,340],"colorBand":3,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":77.7,"zFt":-61.1,"downIn":17.02,"downIntervalIn":[15.045,19.004],"sourcePixel":[306,336],"colorBand":3,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":-42.2,"downIn":5.15,"downIntervalIn":[3.168,7.127],"sourcePixel":[271,340],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":-16.9,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[224,340],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":3.0,"downIn":-2.77,"downIntervalIn":[-4.75,-0.791],"sourcePixel":[187,340],"colorBand":8,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":79.8,"zFt":17.0,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[161,340],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":81.5,"zFt":42.8,"downIn":1.19,"downIntervalIn":[-0.791,3.168],"sourcePixel":[113,343],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":76.6,"zFt":60.0,"downIn":1.19,"downIntervalIn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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F95-Ai-10min-samples.png","sampledMaximumUpIn":2.77,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[29.7,43.7],"zRangeFt":[-81.5,-61.1],"downIntervalIn":[26.922,30.881],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[10],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[96],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[[-22.7,-103.6,26.4,-43.9]],"corePeakCaution":false,"removedFloorRects":[[-22.7,-103.6,26.4,-43.9]],"openingNote":"coarse visually reviewed source notch","evidenceAssets":["NCSTAR1-6C_fig5-76_F95-source.png"]},{"id":"WTC1-F96-Ai-10min","tower":1,"floor":96,"case":"Ai","minutesAfterImpactModel":10,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":167,"printedPage":119,"figure":"5-70","panel":"b","panelDescription":"Top view without concrete slab","asset":"NCSTAR1-6C_fig5-70_floor96_sag.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[386,385],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Visible perimeter office-floor truss pixels outside nominal core. 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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F97-Ai-60min-samples.png","sampledMaximumUpIn":3.29,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[-30.2,-29.7],"zRangeFt":[-73.7,-68.3],"downIntervalIn":[27.333,31.417],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[60],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[[-39.9,-103.6,-25.4,-74.2]],"corePeakCaution":false,"removedFloorRects":[[-39.9,-103.6,-25.4,-74.2]],"openingNote":"coarse visually reviewed source notch","evidenceAssets":["NCSTAR1-6C_fig5-77_F97-source.png"]},{"id":"WTC1-F98-Ai-30min","tower":1,"floor":98,"case":"Ai","minutesAfterImpactModel":30,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":173,"printedPage":125,"figure":"5-78","panel":"b","panelDescription":"Top view without concrete slab","figureImage":"NCSTAR1-6C_fig5-78_F98-source.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[387,387],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Only visible colored structural pixels in the office-floor domain outside nominal core. 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Published maximum is not necessarily in the sampled office-floor domain; never rescale the office field to the whole-model or full-panel maximum.","coarseMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[-43.5,-9.7],"zRangeFt":[-84.3,-63.3],"downIntervalIn":[23.1,26.405],"domain":"all plotted structural members, including 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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F98-Ai-30min-samples.png","sampledMaximumUpIn":1.68,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[-43.5,-9.7],"zRangeFt":[-84.3,-63.3],"downIntervalIn":[23.1,26.405],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[30],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[93],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[],"corePeakCaution":false,"removedFloorRects":[],"openingNote":"no large missing tenant-floor region visible in this source snapshot","evidenceAssets":["NCSTAR1-6C_fig5-78_F98-source.png"]},{"id":"WTC1-F99-Ai-50min","tower":1,"floor":99,"case":"Ai","minutesAfterImpactModel":50,"source":{"report":"NIST NCSTAR 1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":174,"printedPage":126,"figure":"5-79","panel":"b","panelDescription":"Top view without concrete slab","figureImage":"NCSTAR1-6C_fig5-79_F99-source.png"},"registration":{"method":"Approximate linear registration of visible exterior reference footprint to 207ft2in square; image is a 5x-deformed ANSYS top view","imageSizePixels":[387,389],"planWidthFt":207.16666666666666,"northInImage":"right","xEastPositive":true,"zSouthPositive":true,"coreHalfExtentsFt":[67.5,43.5],"estimatedSpatialPrecisionFt":5,"supportDomain":"Only visible colored structural pixels in the office-floor domain outside nominal core. White plot gaps and ordinary core beam cells are not zero-displacement samples."},"trussPanelUZExtremaIn":[-6.714,4.304],"reportedWholeModelMaximumDownIn":7.011,"extremaNote":"Top view without slab includes core beams as well as office trusses. Published maximum is not necessarily in the sampled office-floor domain; never rescale the office field to the whole-model or full-panel maximum.","coarseMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":0,"xRangeFt":[21.9,29.9],"zRangeFt":[9.7,16.6],"downIntervalIn":[5.49,6.714],"domain":"all plotted structural members, including core"},"colorPaletteRGB":[[0,0,255],[0,179,255],[0,255,255],[0,255,179],[1,255,0],[179,255,0],[255,255,0],[255,179,0],[255,0,0]],"colorBandWidthIn":1.224,"points":[{"xFt":-99.8,"zFt":-100.4,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[380,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":-80.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[342,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-101.4,"zFt":-60.1,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[305,4],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-101.4,"zFt":-39.2,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[266,4],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-19.9,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[230,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-102.0,"zFt":-0.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[193,3],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-101.4,"zFt":19.3,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[157,4],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-101.4,"zFt":40.8,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[117,4],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-101.4,"zFt":60.1,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[81,4],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":80.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[44,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-99.8,"zFt":100.4,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[6,7],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":-80.5,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[343,44],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-76.9,"zFt":-60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[305,50],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-78.5,"zFt":-37.6,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[263,47],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-78.5,"zFt":-17.2,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[225,47],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-78.5,"zFt":2.7,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[188,47],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":16.6,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[162,44],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":37.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[124,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-82.8,"zFt":60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[81,39],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":80.0,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[44,44],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-80.1,"zFt":102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[3,44],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-59.8,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,82],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-57.1,"zFt":-80.0,"downIn":-3.69,"downIntervalIn":[-4.304,-3.08],"sourcePixel":[342,87],"colorBand":8,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-57.1,"zFt":-60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[305,87],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.0,"zFt":60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[81,76],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-63.0,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,76],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-60.3,"zFt":102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[3,81],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-40.0,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,119],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-36.8,"zFt":-80.0,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[342,125],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-36.8,"zFt":-60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[305,125],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-36.8,"zFt":60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[81,125],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-43.2,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,113],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-40.6,"zFt":102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[3,118],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-19.8,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,157],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-23.0,"zFt":-80.0,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[342,151],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-16.6,"zFt":-60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[305,163],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-16.6,"zFt":60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[81,163],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-23.0,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,151],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-19.2,"zFt":102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[3,158],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":1.1,"zFt":-102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[383,196],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":-80.0,"downIn":-3.69,"downIntervalIn":[-4.304,-3.08],"sourcePixel":[342,188],"colorBand":8,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":-60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[305,188],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[81,188],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":-3.2,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,188],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":0.0,"zFt":102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[2,194],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":19.8,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,231],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":17.1,"zFt":-80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[342,226],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":17.1,"zFt":-60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[305,226],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":16.6,"zFt":60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[81,225],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":16.6,"zFt":80.0,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[44,225],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":19.2,"zFt":102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[3,230],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":40.0,"zFt":-102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[384,269],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":36.8,"zFt":-80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[342,263],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":36.8,"zFt":-60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[305,263],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":36.8,"zFt":60.1,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[81,263],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":36.8,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,263],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":40.0,"zFt":102.5,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[2,269],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":59.3,"zFt":-102.0,"downIn":-0.02,"downIntervalIn":[-0.631,0.593],"sourcePixel":[383,305],"colorBand":5,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":57.1,"zFt":-80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[342,301],"colorBand":7,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":56.6,"zFt":-60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[305,300],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":56.6,"zFt":60.1,"downIn":-1.24,"downIntervalIn":[-1.856,-0.631],"sourcePixel":[81,300],"colorBand":6,"kind":"digitized_truss_contour_band_midpoint"},{"xFt":63.0,"zFt":80.0,"downIn":-2.47,"downIntervalIn":[-3.08,-1.856],"sourcePixel":[44,312],"colorBand":7,"kind":"digitized_trus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band midpoints and approximate registered plan locations; decimals do not imply extra accuracy."},"renderingRecommendation":"Reconstruct a coarse office-truss shape from the signed band midpoints, retaining upward as well as downward values. A shared slab field and fixed support-height taper are explicit display assumptions. Do not apply Floor96 wall motion or add this shape to a separate impact-deformed mesh.","supportHandling":{"clampToReferenceHeight":"If used, a display approximation that changes the digitized source field, because modeled supports can move vertically. State explicitly.","core":"Core-region samples excluded and core opening geometry not reconstructed. Fixed core is display context, not the calculated core movement.","holes":"Preserve the separately traced tenant-floor notch for this floor; do not infer ordinary spaces between trusses/core beams to be impact holes.","verticalSeatFailure":"Section5.5.10 p122 reports no complete floor/exterior-wall disconnection in the Ai floors; it does not establish zero vertical support movement."},"reviewWitness":"/tmp/wtc-all-floors/north/WTC1-F99-Ai-50min-samples.png","sampledMaximumUpIn":3.69,"sampledDomainMostSaggedRegion":{"kind":"color_band_footprint_not_exact_peak_node","colorBand":5,"xRangeFt":[-103.6,103.6],"zRangeFt":[-103.6,103.6],"downIntervalIn":[-0.631,0.593],"domain":"sampled office-floor domain"},"temporalCoverage":{"kind":"single published calculation snapshot","availableModelMinutes":[50],"singleCommonTimeForAllFloors":false,"otherFloorsWithPublishedSameTime":[96],"note":"This is the selected peak-time figure for this floor. Do not infer a time series or place every floor at its peak simultaneously as one model state."},"wallDisplacementCoverage":{"status":"not available in this asset","note":"No matching per-column wall shape has been digitized for this floor/time. Do not reuse Floor96 Fig5-71 contours on this floor."},"tenantSurfaceVoidRectsFt":[],"corePeakCaution":true,"removedFloorRects":[],"openingNote":"no large missing tenant-floor region visible in this source snapshot","evidenceAssets":["NCSTAR1-6C_fig5-79_F99-source.png"]}],"usageDecision":{"safestFirstSequence":"WTC1 Floor96 CaseAi at10,50,100min, as a truss-field reconstruction with unchanged seat connectivity.","why":"Three published spatial snapshots; no truss-seat failures in this run; localized north sag decreases with cooling.","amplitude":"Interpolate band midpoints, retaining band uncertainty; do not normalize any snapshot to another panel maximum.","timing":"10/50/100min are model time after impact, separate from observed bowing or global collapse clocks.","broaderUse":"South Tower C_i and North Tower B_i research controls remain outside the enabled study. They must not be mixed into these A_i states.","enabledStudies":"North Tower A_i floors 93\u201399. Each floor has a source-labeled individual view; a separate static stack compares independently timed states."},"supportedStudyIntegrationNotes":{"study":"WTC1-F96-Ai","tenantSurfaceVoidRectsFt":[[-41.0,-103.6,16.7,-43.3]],"coreContextVoidNotApplied":[-39.9,-43.3,3.2,-26.1],"suggestedCaption":"Truss-contour colors are digitized from NIST; smooth common truss/slab shape, vertical support-height taper, height-dependent wall coupling and motion between snapshots are reconstructed. Core and east/west walls remain reference context.","reviewedRootKernel":"Root sourceSagIn at review used inverse-distance weighting with32ft support radius and3ft smoothstep taper at core/perimeter; both are display reconstruction choices, not NIST model parameters.","peakNote":"The midpoint fit peaks below the exact reported extrema by roughly half a color interval; do not normalize it to a different plot maximum."},"openingMask":{"id":"WTC1-F96-Ai","tower":1,"floor":96,"case":"Ai","applyToModelMinutes":[10,50,100],"source":{"report":"NIST NCSTAR1-6C","url":"https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=101043","pdfPage1Based":167,"printedPage":119,"figure":"5-70","panels":"b,d,f; slab-inclusive a,c,e checked visually"},"rectanglesFt":[[-41.0,-103.6,16.7,-43.3],[-39.9,-43.3,3.2,-26.1]],"rectangleOrder":"[xWest,zNorth,xEast,zSouth], x east positive, z south positive","sourcePixelRects":[[273,116,385,223],[241,118,273,198]],"imageSizePixels":[386,385],"estimatedBoundaryUncertaintyFt":5,"maskPurpose":"Coarse reference-floor surface cutout for this subsystem study only; not exact missing-member geometry and not additive to a different impact case.","notes":["Large blank north office opening and adjoining core bite traced in the10min top view; same topology visible at50/100min.","Rectangles are coarse bounds registered to undeformed reference floor; they are not fracture paths.","Do not treat ordinary white spaces between core beams as impact voids."]},"rendering":{"spatialInterpolation":"Compact Shepard vertical weights within 32 ft, sampled on common 4 ft cells plus core/opening boundaries, column centers/edges and inner wall planes; affine interpolation on each plan triangle. Framing centerlines split at cell/diagonal crossings, with additional half-foot stations on members changing height for the lateral field.","timeInterpolation":"Floor 96 only: linear interpolation between 10, 50 and 100 model minutes; no historical playback rate. Other floors have one static source state.","deformationScale":1,"slab":"Shares reconstructed truss field, not independent digitization of concrete response","solver":false,"caseComposition":"Existing observed impact exterior panels and fragments are retained. Floor-only NIST truss contours use their own compatible reference floor; the impact interior displacement field is not added.","scope":"North Tower floors 93\u201399, preliminary A_i. Floor 96 has 10/50/100-minute states; each other floor has one independently timed published snapshot.","supports":"Core, perimeter and transfer support heights remain reference; a 3 ft vertical taper is an explicit reconstruction choice. Only the individual floor-96 view has matched north/south lateral wall movement, evaluated at actual part height.","coreContext":"Core remains reference context. Existing observed impact exterior is preserved in all studies and comparison.","matchingWallData":"Floor 96 only: Fig. 5-71 contour displacements are added to existing native impact-panel vertices using their x/y position and nominal face. This mapping combines different reference states and is a display reconstruction, not a coupled NIST finite-element result. Unmapped vertices retain their impact position.","comparison":"Each floor has its own source time. The complete existing impact exterior remains unchanged throughout the static comparison; no common-time wall motion is invented.","customPanelGeometry":"Canonical buildExteriorPanels and its supplemental fragments are active in all thermal views. Original faces, section geometry, source colors, bent silhouettes, impact folds, openings and member records are retained. Reference toggle restores the exact impact mesh."},"supportedStudies":[{"tower":1,"floor":93,"case":"Ai","minutes":[30],"detailedWallMovement":false},{"tower":1,"floor":94,"case":"Ai","minutes":[100],"detailedWallMovement":false},{"tower":1,"floor":95,"case":"Ai","minutes":[10],"detailedWallMovement":false},{"tower":1,"floor":96,"case":"Ai","minutes":[10,50,100],"detailedWallMovement":true},{"tower":1,"floor":97,"case":"Ai","minutes":[60],"detailedWallMovement":false},{"tower":1,"floor":98,"case":"Ai","minutes":[30],"detailedWallMovement":false},{"tower":1,"floor":99,"case":"Ai","minutes":[50],"detailedWallMovement":false}],"openingMasksByFloor":{"93":[],"94":[],"95":[[-22.7,-103.6,26.4,-43.9]],"96":[[-41.0,-103.6,16.7,-43.3]],"97":[[-39.9,-103.6,-25.4,-74.2]],"98":[],"99":[]}}