How did the WTC towers collapse: A new theory

Asif Sohail Usmani, Y.C. Chung, J.L. Torero

Research output: Journal article publicationReview articleAcademic researchpeer-review

146 Citations (Scopus)


A finite-element model was used to investigate the stability of the Twin-Towers of the World Trade Center, New York for a number of different fire scenarios. The fire scenarios included were based upon the likely fires that could have occurred as a result of the attack. A consensus of sorts that the fires that burned in the structures after the attack had a big part to play in this collapse.
Original languageEnglish
Pages (from-to)501-533
Number of pages33
JournalFire Safety Journal
Issue number6
Publication statusPublished - 1 Oct 2003
Externally publishedYes


  • Collapse mechanisms
  • Stability of tall buildings
  • Structures in fire
  • WTC towers

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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