Numerical Simulation On Beam String Structure Behavior Against Fire

The Beam String Structure is a new type space-structure raised in these years, and the research on structure behavior against fire is almost blank. With the developing of this kind structure in recent years, the researches on the fire resistant behavior of the beam string attract more and more structural engineers. The paper take Chaozhou Institute of Technology Gymnasium as the example, Taking into account of geometrical non-linearity and material non-linearity, the finite element model of BSS is builded in ANSYS8.0, the BSS structure's reaction behavior at different temperature is simulated through change the parameter and applying the temperature loads, the critical temperature is finded out. The effect of the parameter to structure behavior against fire is anslysized, It will do great help to the development of the design of steel structures against fire in our country.