The primary objective of our computer modeling was to determine the steel temperature distribution and structural response of WTC 7’s northeastern section due to the fires that burned within the building.
Highlights of our computer modeling include the following:
Modeled WTC 7’s northeast structural system, representing Floors 8 to 45
Developed fire dynamics models to determine the heating environments, thermal models to determine the heat transfer to the structure, and structural models to determine the structural response
Accounted for temperature-dependent properties of the structural members and connections, including thermal expansion, stiffness and strength degradation, and the failure modes of various connections