National Construction Safety Team Act Reports (NIST NCSTAR)

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)

December 1, 2005

Author(s)

Steven W. Kirkpatrick, Robert T. Bocchieri, Fahim H. Sadek, Robert S. MacNeill, S Holmes, B D. Peterson, R W. Cilke, C Navarro

Active Fire Protection Systems. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-4)

December 1, 2005

Author(s)

D D. Evans, Richard Peacock, Erica D. Kuligowski, William Stuart Dols, William L. Grosshandler

Component, Connection, and Subsystem Structural Analysis. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-6C)

December 1, 2005

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

Technical Documentation for Survey Administration: Questionnaires, Interviews, and Focus Groups. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-7B) DRAFT for Public Comments

September 1, 2005

Author(s)

Johanna Zmud

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

Design and Construction of Structural Systems (Appendices A-B). Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1A) DRAFT for Public Comments

September 1, 2005

Author(s)

D A. Fanella, A T. Derecho, S K. Ghosh

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

Design and Construction of Structural Systems. Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1A) DRAFT for Public Comments

September 1, 2005

Author(s)

D A. Fanella, A T. Derecho, S K. Ghosh

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

Fire Suppression Systems. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-4B) DRAFT for Public Comments

September 1, 2005

Author(s)

M Hopkins, J Schoenrock, E K. Budnick

The National Institute of Standards and Technology (NIST) conducted a building and fire safety investigation of the World Trade Center (WTC) disasters. The work

Fire Structure Interface and Thermal Response of the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5G) DRAFT for Public Comments

September 1, 2005

Author(s)

Kuldeep R. Prasad, Howard R. Baum

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

Design and Construction of Structural Systems (Appendices C-G). Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1A) DRAFT for Public Comments

September 1, 2005

Author(s)

D A. Fanella, A T. Derecho, S K. Ghosh

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

Comparison of the 1968 and Current (2003) New York City Building Code Provisions. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-1F) DRAFT for Public Comments

September 1, 2005

Author(s)

J C. Razza, R A. Grill

This report was prepared to support the analysis of building and fire codes and practices of the National Institute of Standards and Technology World Trade

Structural Fire Response and Probable Collapse Sequence of the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-6) DRAFT for Public Comments

September 1, 2005

Author(s)

John L. Gross, Therese P. McAllister

One of the four main objectives of the National Institute of Standards and Technology (NIST) investigation of the collapse of the World Trade Center (WTC)

Passive Fire Protection. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-6A) DRAFT for Public Comments

September 1, 2005

Author(s)

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

Mechanical Properties of Structural Steels. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3D) DRAFT for Public Comments

September 1, 2005

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

This report provides five types of mechanical properties for steels from the World Trade Center (WTC): elastic, room-temperature tensile, room-temperature high

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. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST

September 1, 2005

Author(s)

J C. Razza, R A. Grill

This report was prepared to support the analysis of building and fire codes and practices of the National Institute of Standards and Technology (NIST) World

Collapse of the World Trade Center Towers. Final Report. Federal Building and Fire Safety Investigation of the World Trade Center Disaster.

September 1, 2005

Author(s)

Standards and Technology National Institute of, Safety Team National Construction

This is the final report on the National Institute of Standards and Technology (NIST) investigation of the collapse of the World Trade Center (WTC) towers

Fire Resistance Tests of the Floor Truss Systems. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-6B) DRAFT for Public Comments

September 1, 2005

Author(s)

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)

Mechanical and Metallurgical Analysis of Structural Steel. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3) DRAFT for Public Comments

September 1, 2005

Author(s)

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

Post-Construction Modifications to Fire Protection, Life Safety, and Structural Systems of World Trade Center 7. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-1I) DRAFT for Public Comments

September 1, 2005

Author(s)

R A. Grill, D A. Johnson, D A. Fanella

This report was prepared to support the analysis of building and fire codes and standards of the National Institute of Standards and Technology World Trade

Baseline Structural Performance and Aircraft Impact Damage Analysis of the World Trade Center Towers. Appendices A-E. Federal Building and Fire Safety Investigation of the World Trade Center Disaster.

September 1, 2005

Author(s)

Fahim Sadek

The baseline structural performance and aircraft impact damage analysis of the National Institute of Standards and Technology (NIST) Investigation of the World

Component, Connection, and Subsystem Structural Analysis. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-6C) DRAFT for Public Comments

September 1, 2005

Author(s)

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

Physical Properties of Structural Steels. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3E) DRAFT for Public Comments

September 1, 2005

Author(s)

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

Comparison of Building Code Structural Requirements. Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1B) DRAFT for Public Comments

September 1, 2005

Author(s)

S K. Ghosh, X Liang

This report provides a comparison of the structural provisions of: (1) the New York City Building Code, 1968 edition, (2) the New York City Building Code, 2001

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)

September 1, 2005

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

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

September 1, 2005

Author(s)

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

Post-Construction Fires Prior to September 11, 2001. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-4A) DRAFT for Public Comments

September 1, 2005

Author(s)

Erica D. Kuligowski, D D. Evans

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

Fire Protection and Life Safety Provisions Applied to the Design and Construction of WTC 1, 2 and 7 and Post-Construction Provisions Applied After Occupancy. Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1D) ***DR

September 1, 2005

Author(s)

R A. Grill, D A. Johnson

This report was prepared to support the analysis of building and fire codes and standards of the National Institute of Standards and Technology World Trade

Experiments and Modeling of Multiple Workstations Burning in a Compartment. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5E)

September 1, 2005

Author(s)

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

Fire Tests of Single Office Workstations. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5C) DRAFT for Public Comments

September 1, 2005

Author(s)

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

Steel Inventory and Identification. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3B) DRAFT for Public Comments

September 1, 2005

Author(s)

Stephen W. Banovic

As a result of the recovery efforts of the Structural Engineers Association of New York. Federal Emergency Management Agency/American Society of Civil Engineers

Maintenance and Modifications to Structural Systems. Federal Building and Fire Safety Investigation of the World Trade Center (NIST NCSTAR 1-1C) DRAFT for Public Comments

September 1, 2005

Author(s)

D A. Fanella, A T. Derecho, S K. Ghosh

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