Stress And Deformation Analysis Of Reinforced Concrete Beam Supporting Column Transfer Structure Under The Action Of Fire And Load

The transfer floor structure is the form of a structure frequently used in a multifunctional building,transfer floor plays a key role as the most important part of a structure in transferring the load of the upper structure. As soon as a fire happened,it will threat the safety of the whole structure. Therefore to carry out the research of transfer floor structure’s bearing performance under the action of high temperature and load has important practical significance. In this paper mainly researched the mechanical performance and deformation of the reinforced concrete beam supporting column transfer structure in high temperature fire,the horizontal wind load and the vertical load, discussed the laws of internal force redistribution and deformation of the reinforced concrete beam supporting column transfer structure under vertical and horizontal wind load under the growth of the fire heating time.Then, applying horizontal wind load and vertical load on the model with the ISO834 standard heating up curve, using ABAQUS finite element analysis software,getting the internal force change curve with time and displacement curve with time under various operating conditions. Analyzing and summarizing the laws of internal force redistribution and deformation of the beam supporting column transfer structure model under different fire conditions.In addition,summarizing the stress and deformation effect of wind load on the beam supporting column transfer structure under the fire,the horizontal wind load, vertical load and only under the coupled action of vertical load and fire.In this paper, the analysis of the results and conclusion, will lay the foundation for the further exploration of stress and deformation of the reinforced concrete beam column transfer structure in high temperature under the action of fire performance.