关键词: 钢板剪力墙, 抗震性能, 有限元分析, 滞回, 耗能

Abstract:

In order to investigate the seismic performance of steel plate shear wall （SPSW）, the effects of the height-to-thickness ratio on the hysteretic energy dissipation, the energy dissipation per volume, the energy dissipative coefficient and the maximum out-of-plane deformation at the infill panel center are simulated under low cyclic loading via the finite element method that has been verified by experiments, and the corresponding hysteretic out-of- plane deformations are presented. Moreover, the horizontal bearing capacity, lateral stiffness and ductility at different height-to-thickness ratios are further analyzed according to the skeleton curves. The results show that, with the increase in loading displacement, the energy dissipation efficiency of thin SPSW is higher than that of the thick one, and that, with the increase in height-to-thickness ratio, the lateral stiffness and horizontal ultimate bearing capacity decrease but the ductility increases. A height-to-thickness ratio of 300 is finally suggested for the design of SPSW.

Key words: steel plate shear wall, seismic performance, finite element analysis, hysteresis, energy dissipation