Overview of the Structural Design of World Trade Center 1, 2, and 7
Therese P. McAllister, Fahim Sadek, John L. Gross, Jason D. Averill, Richard G. Gann
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.
, Sadek, F.
, Gross, J.
, Averill, J.
and Gann, R.
Overview of the Structural Design of World Trade Center 1, 2, and 7, Fire Technology, [online], https://doi.org/10.1007/s10694-012-0285-6
(Accessed May 28, 2023)