U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Construction Safety Team Act Reports (NIST NCSTAR)

Experiments and Modeling of Structural Steel Elements Exposed to Fire. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5B)

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
Reconstructing the fires and their impact on structural components in the World Trade Center (WTC) buildings on September 11, 2001, requires extensive use of

Experiments and Modeling of Structural Steel Elements Exposed to Fire (Appendices D-G). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5B)

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
Reconstructing the fires and their impact on structural components in the World Trade Center (WTC) buildings on September 11, 2001, requires extensive use of

Reconstruction of the Fires in the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5) ***DRAFT for Public Comments***

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
The collapses of the World Trade Center towers on September 11, 2001, resulted from a combination of aircraft impact damage and the ensuing fires. This report

Analysis of Aircraft Impacts into the World Trade Center Towers (Chapters 1-8). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-2B) ***DRAFT for Public Comments***

Author(s)
Steven W. Kirkpatrick, Robert T. Bocchieri, Fahim Sadek, R A. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro
The objective of this report was to analyze the aircraft impacts into each of the World Trade Center (WTC) towers to provide the following: (1) estimates of

Experiments and Modeling of Structural Steel Elements Exposed to a Fire. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5B) ***DRAFT for Public Comments***

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
Reconstructing the fires and their impact on structural components in the World Trade Center (WTC) buildings on September 11, 2001, requires extensive use of

Occupant Behavior, Egress, and Emergency Communication. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-7) ***DRAFT for Public Comments***

Author(s)
Jason D. Averill, Dennis S. Mileti, Richard D. Peacock, Erica D. Kuligowski, N Groner, Guylene Proulx, Paul A. Reneke, Harold E. Nelson
Multiple sources of information were collected and analyzed: over 1,000 new interviews with survivors (including 803 telephone interviews, 225 face-to-face

Analysis of Aircraft Impacts into the World Trade Center Towers (Chapters 9-11). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-2B) ***DRAFT for Public Comments***

Author(s)
Steven W. Kirkpatrick, Robert T. Bocchieri, Fahim Sadek, R A. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro
The objective of this report was to analyze the aircraft impacts into each of the World Trade Center (WTC) towers to provide the following: (1) estimates of