Temperature field simulation and collapse analysis of steel frame factory under fire

Abstract

Building collapse is fire-induced secondary disasters. Because of many combustibles, fire-induced collapse accidents occur frequently in the steel frame factory. It causes the economic property and firemen casualties. So this paper carries out the temperature field simulation and collapse analysis of the steel frame factory under fire. The analysis module of ABAQUS is used for simulation in this paper. By comparing room temperature with high temperature, the Mises stress nephogram and displacement nephogram of the steel frame factory are analyzed. It is found that the beams and columns are greatly deformed under fire, especially the steel beams of the bent frame. The local plastic damage is occurred in the fire area of the frame, which may lead to the danger of local collapse. On the other hand, the stress of the column and beam is studied under high temperature. It shows that the stress of them increases first and then decreases.