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The September 11, 2001, attack on the World Trade Center (WTC) caused the deaths of 2,749 people. Included in the group were approximately 421 emergency...
Sivaraj Shyam-Sunder, Richard G. Gann, William L. Grosshandler, Hai S. Lew, Richard W. Bukowski, Fahim Sadek, Frank W. Gayle, Therese P. McAllister, Jason D. Averill, James R. Lawson, Harold E. Nelson, Stephen A. Cauffman
This is the final report on the National Institute of Standards and Technology (NIST) econstruction of the collapses of the World Trade Center (WTC) towers, the...
Mehdi S. Zarghamee, Yasuo Kitane, Omer O. Erbay, Therese P. McAllister, John L. Gross
Simpson Gumpertz & Heger Inc. (SGH) developed global models of the World Trade Center (WTC) towers using finite elements to gain an understanding of the roles...
Published stories of the survivor's of the World Trade Center (WTC) attacks were collected to document the event and as background material to guide the...
This report documents the methods and outcomes of the telephone survey, face-to-face interviews, and focus groups that were conducted in support of the federal...
The collapse of the World Trade Center towers on September 11, 2001, resulting from a combination of aircraft impact damage and subsequent fires, was studied as...
Nicholas J. Carino, M A. Starnes, John L. Gross, Jiann C. Yang, S R. Kukuck, Kuldeep R. Prasad, Richard W. Bukowski
This report deals with the passive fire protection used in the World Trade Center (WTC) towers. The main objective is to provide background information that can...
John L. Gross, F Hervey, M Izydorek, J Mammoser, J Treadway
The National Institute of Standards and Technology (NIST) review of available documents related to the design and construction of the World Trade Center (WTC)...
Mehdi S. Zarghamee, S Bolourchi, D W. Eggers, Omer O. Erbay, F W. Kan, Yasuo Kitane, P R. Barrett, John L. Gross, Therese P. McAllister, A A. Liepins, M Mudlock, W I. Naguib, R P. Ojdrovic, Andrew T. Sarawit
Simpson Gumpertz & Heger, Inc. (SGH) developed finite element models of the components, connections and subsystems of the World Trade Center (WTC) towers to...
Kevin B. McGrattan, Charles E. Bouldin, Glenn P. Forney
This report presents the results of numerical simulations of the fires in World Trade Center (WTC) 1 and WTC 2 on September 11, 2001. The calculations were...
Thomas J. Ohlemiller, George W. Mulholland, Skandakumar H. Abeyesekere, James J. Filliben, Richard G. Gann
Reconstruction of the fires that occurred in the World Trade Center (WTC) 1, 2, and 7 on September 11. 2001, relied heavily on computer simulations because...
Anthony P. Hamins, Alexander Maranghides, Kevin B. McGrattan, Thomas J. Ohlemiller, Robert Anleitner
A series of large-scale experiments were conducted in the National Institute of Standards and Technology (NIST) Large Fire Laboratory from November 4 to...
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...
Richard G. Gann, Michael A. Riley, J M. Repp, A S. Whittaker, Andrei Reinhorn, P A. Hough
The degree of damage to the ceiling tile systems of the World Trade Center towers following the aircraft impacts on September 11, 2001, could have affected the...
D D. Evans, Erica D. Kuligowski, William S. Dols, William L. Grosshandler
The National Institute of Standards and Technology investigation of active fire protection systems in World Trade Center (WTC) 1, 2, and 7 included the design...
This report was prepared to support the investigation of active fire protection systems as part of the National Institute of Standards and Technology (NIST)...
This report documents the design and installation of the smoke management systems in World Trade Center (WTC) 1, 2, and 7 and compares the designs to the...
William M. Pitts, Kathryn M. Butler, Valentine Junker
This report summarizes the collection and analysis of visual material used for the National Institute of Standards and Technology (NIST) World Trade Center (WTC...
This report documents maintenance and modifications that were made to the structural systems of World Trade Center (WTC) 1,2, and 7. Included are the Port...
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...
This report describes the provisions that were used to design and construct World Trade Center 1, 2, and 7. Included is a summary of the major provisions in the...
This report describes the provisions that were used to design and construct World Trade Center 1, 2, and 7. Included is a summary of the major provisions in the...
William E. Luecke, Joseph D. McColskey, Christopher N. McCowan, Stephen W. Banovic, Richard J. Fields, Timothy J. Foecke, Thomas A. Siewert, Frank W. Gayle
This report provides five types of mechanical properties for steels from the World Trade Center (WTC): elastic, room-temperature tensile, room-temperature high...
Frank W. Gayle, Richard J. Fields, William E. Luecke, Stephen W. Banovic, Timothy J. Foecke, Christopher N. McCowan, Joseph D. McColskey, Thomas A. Siewert
This report is an overview of the results of the mechanical and metallurgical analysis of structural steel from the World Trade Center (WTC), part of the...
Stephen W. Banovic, Christopher N. McCowan, William E. Luecke
This report describes the physical properties of the structural steel recovered from the World Trade Center (WTC) towers. Analytical techniques were used to...
Fires occurred in World Trade Center (WTC) I, 2, and 7 prior to September 11, 200 1. This report documents the facts of significant fires in the buildings after...
As a result of the recovery efforts of the Structural Engineers Association of New York. Federal Emergency Management Agency/American Society of Civil Engineers...
This report describes damage characteristics, failure modes, and fire-related degradation of the recovered structural components from the World Trade Center...
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...
The baseline structural performance and aircraft impact damage analysis of the National Institute of Standards and Technology (NIST) Investigation of the World...