| As more and more high-rise buildings are standing around us,structural bearing capacity and lateral stiffness are more and more strictly required.In this paper,the concrete filled steel tube shear wall structure system is studied.This type of structure not only has large ductility and high strength,but also has better seismic capacity than other structural forms,which can be better applied in high-rise buildings.SAP2000 finite element software is used to establish a model for a 21-storey concrete-filled steel tube shear wall structure in paper.The time history analysis of shear wall structures with viscous damper wall,soft steel damper and their combined control under rare earthquake response is carried out respectively,and their seismic reduction effects are compared,so as to lay a foundation for the popularization of the structural system and for the seismic reduction of the structure.The design provides some reference.By inputting three kinds of seismic waves,the response analysis of structures with viscous damper wall and soft steel damper under seismic action is carried out,and compared with structures without any damper.Then the response analysis of structures under seismic action is carried out for structures with combined control of two kinds of dampers,by changing the arrangement of damper under combined control.Compared with the structure without any shock absorber,the damping effect of the damper under different schemes is discussed,and the optimum arrangement of the structure is obtained by comparison.The results show that the viscous damper wall and the soft steel damper play a significant role in the seismic energy consumption,and significantly reduce the seismic response of the structure.The viscous damper wall and the soft steel damper can work in harmony in the structure,and the viscous damper wall is arranged in two-thirds of the lower floors of the structure,while the other floors are arranged with the soft steel damper.However,when two-thirds of the lower floors of the structure are equipped with viscous dampers and the other floors are equipped with soft steel dampers,the seismic reduction effect is not superior to that when one-third of the lower floors are equipped with viscous dampers and the other floors are equipped with soft steel dampers.In practical engineering,we can not blindly increase thenumber of viscous damper walls,so we need to discuss and analyze the layout of viscous damper walls. |
