ABSTRACT

The analysis of structural re resistance is a complicated process because it involves many variables such as re growth and duration, temperature distribution in structural members, interactions of structural members, changes in material properties, and the inuence of loads on the structural system. The process generally includes three distinct components: (1) re hazards analysis to identify re scenarios and determine the impact of each scenario on adjacent structural members; (2) thermal analysis to calculate temperature history in each member; and (3) structural analysis to determine forces and stresses in each member and whether local or progressive structural collapse would occur during any of the re hazard scenarios.