PBSD study on seismic behavior of main machine hall in conventional island

Due to the requirements of the machine equipment,the main machine hall is irregular in mass and stiffness.It is important to notice that the essential purpose of main machine hall is to prevent serious damage to important equipment.Performance-based design method of structures is considered to be an international advanced seismic design idea,which require designers to quantify the behavior of the structure components due to multiple performance targets that will be adopted in design procedure.Based on the elastic analysis under frequent and moderate earthquake action,inelastic time history analysis under rare earthquake is carried out with PERFORM3D,in which the fiber model is used.To evaluate the deformation performance of the components,a guideline is proposed in this paper based on ASCE-41 and FEMA356.It can also be concluded that in this way the energy dissipated is differ from the one expected.Design suggestion is given in this paper according to the structure performance.