Fires being the cause of collapse of steel frame office buildings

The purpose of our submission is to investigate the extent to which present-day design of steel framed buildings are susceptible to total collapse when subjected to extreme fire events. We select a 50 storey structure in which 2 and 4 adjacent storeys located at different above-ground heights are, in separate scenarios, engulfed in raging fires. A total of 8 scenarios are analyzed, employing Newtonian mechanics and realistic energy dissipating …