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.
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.
(236 K)
Grill, R. A.; Johnnson, D. A.; Fanella, D. A.
NIST NCSTAR 1-1I; 37 p. September 2005.
Keywords:
World Trade Center; high rise buildings; building
collapse; disasters; terrorists; terrorism; fire safety;
fire investigations; construction; fire protection; life
safety; structural systems; beams; fire alarm systems;
sprinklers; floors; slabs (members); egress;
pressurization; communication networks
Abstract:
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 Center
(WTC) Investigation. This report was prepared to support
the overall objective of determining how and why WTC 7
collapsed. The purpose of this report is to document
modifications and/or repairs of the fire protection,
life safety, and structural framing systems of WTC 7.
