World Trade Center Building Performance Study: Data Collection, Preliminary Observations, and Recommendations

Передняя обложка
Government Printing Office, 2002
 

Содержание

Chapter
1-2
Chapter
1-7
WTC 4 5 and
1-8
H Acronyms and Abbreviations
1-21
Figure 21 Representative floor plan based on floor plan for 94th and 95th floors
2-1
WTC 1 and WTC 2
2-2
Figure 524 Areas of potential transfer truss failure
2-5
Figure 24 Base of exterior wall frame
2-7
Observations Findings and Recommendations
8-1
Appendix C
8-2
Chapter 6
8-6
Appendix
8-7
A Overview of Fire Protection in Buildings
1
Figure
2
Table A 1 Peak Heat Release Rates of Various Materials NFPA
3
Figure
6

Figure 212 Floor plan of 94th and 95th floors of WTC 1 showing egress stairways 214
2-14
Figure 219 Redistribution of load after aircraft impact 220
2-20
1 Estimated Openings in Exterior Walls of WTC 1 223
2-23
Figure 221 Buckling of columns initiated by failure of floor joist connections 226
2-26
Figure 228 Conflagration and debris exiting the north wall of WTC 2 behind WTC 1 231
2-31
Figure 224 Southeast corner of WTC 2 shortly after aircraft impact 228
3-2
Figure 520
3-5
Figure 38 Remains of WTC 3 after collapse of WTC 1 and WTC 2
4-2
WTC 3
4-3
WTC 7
4-7
Figure 48 Damage to WTC 6
4-8
Figure 413 WTC 5 on fire 413
4-13
Figure 422 Connection samples 419
4-19
1 WTC 7 Tenants
5-2
Figure 51 Foundation plan WTC 7
5-3
Figure 58 Truss 2 detail
5-9
2 WTC 7 Fuel Distribution Systems 514
5-14
Figure 512 Sequence of debris generated by collapses of WTC 2 1 and 7 517
5-17
Bankers Trust Building
6-1
1 DOBSEAONY Cooperative Building Damage Assessment
7-3
712
7-12
November 7 2001
7-20
Table A 2 Fire Duration in Previous Fire Incidents in Steelframe
10
Figure
11
Figure A7 Modulus of elasticity at elevated temperatures for structural
13
Table A 4 Test Methods for Sprayapplied Fireproofing Materials A18
18
Life Safety A23
23
Figure 612 Office at north side of the 8th floor
24
Figure A15 Estimated evacuation times for highrise buildings A26
26
B Structural Steel and Steel Connections
1
Chapter 1
2
Examples of WTC 1 and WTC 2 Connection Capacity
7
Figure B9 A Viscoelastic damper angles bolted to angle welded to spandrel plate
11
A12
12
References B14
14
Figure 11 WTC site map
1
Figure C11 Microstructure of a typical region showing the surface and grain boundary
7
WTC Steel Data Collection
15
Appendix D
2
Peripheral Buildings
7
Figure D10 Measured dimensions of the steel pieces
8
Figure D12 Coupon cut from WTC 5 showing web tearout at bolts
9
E Aircraft Information

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