Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).

View the beta site
NIST logo

Publication Citation: Overview of the Structural Design of World Trade Center 1, 2, and 7

NIST Authors in Bold

Author(s): Therese P. McAllister; Fahim Sadek; John L. Gross; Jason D. Averill; Richard G. Gann;
Title: Overview of the Structural Design of World Trade Center 1, 2, and 7
Published: September 01, 2012
Abstract: This paper summarizes the primary structural systems which comprised World Trade Center 1, World Trade Center 2, and World Trade Center 7. The buildings were destroyed in the terrorist attacks of September 11, 2001. This paper describes the four major structural subsystems in the towers: the exterior wall, the core, the floor system, and the hat truss. Additionally, the major structural systems within WTC 7 are described: foundation, lateral load resisting system, floor system, and columns.
Citation: Fire Technology
Pages: 27 pp.
Keywords: World Trade Center, Investigations, Building Collapse, Structural Design,
Research Areas: Building and Fire Research, World Trade Center Investigation
DOI: http://dx.doi.org/10.1007/s10694-012-0285-6  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (2MB)