Final Reports from the NIST World Trade Center Disaster Investigation

Final Reports from the NIST Investigation of the World Trade Center Disaster

Final Reports released in September 2005:

NIST NCSTAR 1: Federal Building and Fire Safety Investigation of the World Trade Center Disaster: Final Report of the National Construction Safety Team on the Collapses of the World Trade Center Tower Author(s): Richard G. Gann (Lead Author), Sivaraj Shyam-Sunder (Lead Investigator), William L. Grosshandler, Hai S. Lew, Richard W. Bukowski, Fahim Sadek, Frank W. Gayle, John L. Gross, Therese P. McAllister, Jason D. Averill, James R. Lawson, Harold E. Nelson, Stephen A. Cauffman

NIST NCSTAR 1-1: Design, Construction, and Maintenance of Structural and Life Safety Systems Author(s): Hai S. Lew, Richard W. Bukowski, Nicholas J. Carino

• NIST NCSTAR 1-1A: Design and Construction of Structural Systems Author(s):D A. Fanella, A T. Derecho, S K. Ghosh
  • NIST NCSTAR 1-1A appendixes A-B Author(s):Hai S. Lew, Richard W. Bukowski, Nicholas J. Carino
  • NIST NCSTAR 1-1A appendixes C-G Author(s): A T. Derecho, S K. Ghosh
• NIST NCSTAR 1-1B: Comparison of Building Code Structural Requirements Author(s): S K. Ghosh, X Liang
• NIST NCSTAR 1-1C: Maintenance and Modifications to Structural Systems Author(s): D A. Fanella, A T. Derecho, S K. Ghosh
  • NIST NCSTAR 1-1C appendixes Author(s): D A. Fanella, A T. Derecho, S K. Ghosh
• NIST NCSTAR 1-1D: Fire Protection and Life Safety Provisions Applied to the Design and Construction of World Trade Center 1, 2, and 7 and Post-Construction Provisions Applied after Occupancy Author(s): R A. Grill, D A. Johnson
• NIST NCSTAR 1-1E: Comparison of Codes, Standards, and Practices in Use at the Time of the Design and Construction of World Trade Center 1, 2, and 7 Author(s): J C. Razza, R A. Grill
• NIST NCSTAR 1-1F: Comparison of the 1968 and Current (2003) New York City Building Code Provisions Author(s): J C. Razza, R A. Grill
• NIST NCSTAR 1-1G: Amendments to the Fire Protection and Life Safety Provisions of the New York City Building Code by Local Laws Adopted while World Trade Center 1, 2, and 7 Were in Use Author(s): J C. Razza, R A. Grill
• NIST NCSTAR 1-1H: Post-Construction Modification to Fire Protection and Life Safety Systems of the World Trade Center Towers Author(s): R A. Grill, D A. Johnson
• NIST NCSTAR 1-1I: Post-Construction Modifications to Fire Protection, Life Safety, and Structural Systems of World Trade Center 7 Author(s): R A. Grill, D A. Johnson
• NIST NCSTAR 1-1J: Design, Installation, and Operation of Fuel Systems for Emergency Power in World Trade Center 7 Author(s): R A. Grill, D A. Johnson

NIST NCSTAR 1-2: Baseline Structural Performance and Aircraft Impact Damage Analysis of the World Trade Center Towers Author(s): Fahim Sadek

• NIST NCSTAR 1-2A: Reference Structural Models and Baseline Performance Analysis of the World Trade Center Towers Author(s): W J. Faschan, R B. Garlock
• NIST NCSTAR 1-2B: Analysis of Aircraft Impacts into the World Trade Center Towers (Chapters 1-8) Author(s): Steven W. Kirkpatrick, Robert T. Bocchieri, Fahim H. Sadek, Robert S. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro
  • NIST NCSTAR 1-2B: Chapters 9-11 Author(s): Steven W. Kirkpatrick, Robert T. Bocchieri, Fahim H. Sadek, Robert S. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro
  • NIST NCSTAR 1-2B: appendixes Author(s): Steven W. Kirkpatrick, R. Bocchieri, Fahim Sadek, Robert S. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro

NIST NCSTAR 1-3: Mechanical and Metallurgical Analysis of Structural Steel Author(s): Frank W. Gayle, Richard J. Fields, William E. Luecke, Stephen W. Banovic, Timothy J. Foecke, Christopher N. McCowan, Thomas A. Siewert, Joseph D. McColskey

• NIST NCSTAR 1-3A: Contemporaneous Structural Steel Specifications Author(s): William E. Luecke, Thomas A. Siewert, Frank W. Gayle
• NIST NCSTAR 1-3B: Steel Inventory and Identification Author(s): Stephen W. Banovic
• NIST NCSTAR 1-3C: Damage and Failure Modes of Structural Steel Components Author(s): Stephen W. Banovic, Timothy J. Foecke
  • NIST NCSTAR 1-3C: appendixes Author(s): Stephen W. Banovic, Timothy J. Foecke
• NIST NCSTAR 1-3D: Mechanical Properties of Structural Steels Author(s): William E. Luecke, Joseph D. McColskey, Christopher N. McCowan, Stephen W. Banovic, Richard J. Fields, Timothy J. Foecke, Thomas A. Siewert, Frank W. Gayle
• NIST NCSTAR 1-3E: Physical Properties of Structural Steels Author(s): Stephen W. Banovic, Christopher N. McCowan, William E. Luecke

NIST NCSTAR 1-4: Active Fire Protection Systems Author(s): D D. Evans, Richard Peacock, Erica D. Kuligowski, William Stuart Dols, William L. Grosshandler

• NIST NCSTAR 1-4A: Post-Construction Fires prior to September 11, 2001 Author(s): Erica D. Kuligowski, D D. Evans, Richard D. Peacock
• NIST NCSTAR 1-4B: Fire Suppression Systems Author(s): M Hopkins, J Schoenrock, E K. Budnick
• NIST NCSTAR 1-4C: Fire Alarm Systems Author(s): R J. Keough, R A. Grill
• NIST NCSTAR 1-4D: Smoke Management Systems Author(s): M J. Ferreira, S M. Strege

NIST NCSTAR 1-5: Reconstruction of the Fires in the World Trade Center Towers Author(s): Richard G. Gann, Anthony P. Hamins, Kevin B. McGrattan, George W. Mulholland, Harold E. Nelson, Thomas J. Ohlemiller, William M. Pitts, Kuldeep R. Prasad

• NIST NCSTAR 1-5A: Visual Evidence, Damage Estimates, and Timeline Analysis (Chapters 1-8) Author(s): William M. Pitts, Kathryn M. Butler, Valentine Junker
  • NIST NCSTAR 1-5A: Chapters 9-appendix C Author(s): William M. Pitts, Kathryn M. Butler, Valentine Junker
  • NIST NCSTAR 1-5A: appendixes D-G Author(s): William M. Pitts, Kathryn M. Butler, Valentine Junker
  • NIST NCSTAR 1-5A: appendixes H-M Author(s): William M. Pitts, Kathryn M. Butler, Valentine Junker
• NIST NCSTAR 1-5B: Experiments and Modeling of Structural Steel Elements Exposed to Fire Author(s): Anthony P. Hamins, Alexander Maranghides, Kevin B. McGrattan, Erik L. Johnsson, Thomas J. Ohlemiller, Michelle K. Donnelly, Jiann C. Yang, George W. Mulholland, Kuldeep R. Prasad, S R. Kukuck, Robert Anleitner, Therese P. McAllister
• NIST NCSTAR 1-5C: Fire Tests of Single Office Workstations Author(s): Thomas J. Ohlemiller, George W. Mulholland, Alexander Maranghides, J J. Filliben, Richard G. Gann
• NIST NCSTAR 1-5D: Reaction of Ceiling Tile Systems to Shocks Author(s): Richard G. Gann, M A. Riley, J M. Repp, A S. Whittaker, A M. Reinhorn, P A. Hough
• NIST NCSTAR 1-5E: Experiments and Modeling of Multiple Workstations Burning in a Compartment Author(s): Anthony P. Hamins, Alexander Maranghides, Kevin B. McGrattan, Thomas J. Ohlemiller, Robert Anleitner
• NIST NCSTAR 1-5F: Computer Simulation of the Fires in the World Trade Center Towers Author(s): Kevin B. McGrattan, Charles E. Bouldin, Glenn P. Forney
• NIST NCSTAR 1-5G: Fire Structure Interface and Thermal Response of the World Trade Center Towers Author(s): Kuldeep R. Prasad, Howard R. Baum

NIST NCSTAR 1-6: Structural Fire Response and Probable Collapse Sequence of the World Trade Center Towers Author(s): John L. Gross, Therese P. McAllister

• NIST NCSTAR 1-6A: Passive Fire Protection Author(s): Nicholas J. Carino, M A. Starnes, John L. Gross, Jiann C. Yang, S R. Kukuck, Kuldeep R. Prasad, Richard W. Bukowski
• NIST NCSTAR 1-6B: Fire Resistance Tests of the Floor Truss Systems Author(s): John L. Gross, F Hervey, M Izydorek, J Mammoser, J Treadway
• NIST NCSTAR 1-6C: Component, Connection, and Subsystem Structural Analysis Author(s): Mehdi S. Zarghamee, S Bolourchi, D W. Eggars, Omer O. Erbay, F W. Kan, Y Kitane, P R. Barrett, John L. Gross, Therese P. McAllister, A A. Liepins, M Mudlock, W I. Naguib, R P. Ojdrovic, Andrew T. Sarawit
• NIST NCSTAR 1-6D: Global Structural Analysis of the Response of the World Trade Center Towers to Impact Damage and Fire Author(s): Mehdi S. Zarghamee, Y Kitane, Omer O. Erbay, Therese P. McAllister, John L. Gross

NIST NCSTAR 1-7: Occupant Behavior, Egress, and Emergency Communication Author(s): Jason D. Averill, Dennis S. Mileti, Richard D. Peacock, Erica D. Kuligowski, N Groner, Guylene Proulx, Paul A. Reneke, Harold E. Nelson

• NIST NCSTAR 1-7A: Analysis of Published Accounts of the World Trade Center Evacuation Author(s): R F. Fahy, Guylene Proulx
• NIST NCSTAR 1-7B: Technical Documentation for Survey Administration: Questionnaires, Interviews, and Focus Groups Author(s): Johanna Zmud

NIST NCSTAR 1-8: The Emergency Response Operations Author(s): James R. Lawson, R Vettori

• NIST NCSTAR 1-8: Appendixes A-L Author(s): James R. Lawson, R Vettori

Final Reports released in November 2008:

NIST NCSTAR 1A: Final Report on the Collapse of World Trade Center Building 7 * Author(s): Richard G. Gann (Lead Author), Sivaraj Shyam-Sunder (Lead Investigator), William L. Grosshandler, Hai S. Lew, Richard W. Bukowski, Fahim Sadek, Frank W. Gayle, John L. Gross, Therese P. McAllister, Jason D. Averill, James R. Lawson, Harold E. Nelson, Stephen A. Cauffman

• NIST NCSTAR 1-9: Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7, Volume 1 and 2 * Author(s): Therese P. McAllister
   
  • NIST NCSTAR 1-9A: Global Structural Analysis of the Response of World Trade Center Building 7 to Fires and Debris Impact Damage * Author(s): Robert S. MacNeill, Therese P. McAllister

* Errata for NIST NCSTAR 1A, NIST NCSTAR 1-9, and NIST NCSTAR 1-9A, Federal Building and Fire Safety Investigation of the World Trade Center Disaster: Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (January 2009, April 2012, and June 2012) Author(s): Therese P. McAllister