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This document describes the goals, objectives, and guiding principles for the NIST-led investigation of the WTC disaster. The NIST investigation plan includes eight projects that provide the focus for the technical work. Project 1 is an analysis of
Researchers at the National Institute of Standards and Technology's (NIST) Building and Fire Laboratory (BFRL) are working with the U.S. Fire Administration (USFA); the Bureau of Alcohol, Tobacco and Firearms (ATF); and the U.S. Department of Justice to
Ronald G. Rehm, William M. Pitts, D D. Evans, Kuldeep R. Prasad, Kevin B. McGrattan, Glenn P. Forney
Mathematical models have been used to provide an initial estimate the behavior of the fires in the twin towers of the World Trade Center (WTC) on September 11, 2001. Available photographs and videos have provided an initial estimate of the exterior damage
This report describes the results of calculations using the NIST Fire Dynamics Simulator (FDS) that were performed to provide insight on the thermal conditions that may have occurred during the fire at 3146 Cherry Road NE, Washington D.C. on May 30, 1999
U.S./Japan Natural Resources Development Program (UJNR). Wind and Seismic Effects. Joint Meeting of the U.S./Japan Cooperative Program in Natural Resources Panel on Wind and Seismic Effects, 30th. May 12-15, 1998, Gaithersburg, MD, Raufaste, N. J., Jr
On May 27, 1997, several tornadoes hit the Central Texas area in the counties of McLennan, Bell, Williamson, and Travis. The most destructive of these tornadoes swept through a housing area on the outskirts of Jarrell, Texas. Jarrell is a Central Texas
This report describes the surface wind speeds and structural damage caused by Hurricane Fran during its passage across North Carolina and Virginia on 5-6 September 1996. Fran was a category 3 hurricane on the Saffir-Simpson scale, and estimated maximum
An explosion below the World Trade Center plaza in New York City on February 26, 1993, killed six workers, and resulted in injuries to over 1,000 occupants as they made their way out of the affected buildings. The explosion and subsequent fire caused
This report describes the surface wind speeds during the passage of Hurricane Marilyn through the U.S. Virgin Islands on 15-16 September 1995. Sources of wind speed measurements during this period are described, along with procedures used to adjust these
The features of an enhanced model for egress from fires in non-residential occupancies is presented along with a users manual describing the use of the model. The enhancements to the model include analysis of locations of safety, smoke blockages, disabled
The January 17, 1995 Hyogoken-Nanbu earthquake of magnitude 7.2 in JMA scale (Mw = 6.9), which struck Kobe, Japan and its surrounding area was the most severe earthquake to affect that region this century. The earthquake resulted in more than 6,000 deaths
On February 26, 1993, shortly after noon, a bomb exploded in a subterranean garage below the World Trade Center plaza in New York City. The explosions and subsequent fire caused extensive structural damage on several basement levels, interferred with the
Nicholas J. Carino, R M. Chung, Hai S. Lew, A W. Taylor, William D. Walton
A magnitude 6.8 (Ms) earthquake centered under the community of Northridge in the San Fernando Valley shook the entire Los Angeles metropolitan area at 4:31 a.m. local time on Monday, January 17, 1994. Moderate damage to the built environment was