Research on shear performance of corrugated steel plate shear walls with inelastic buckling of infilled plates under lateral loads

Abstract

The corrugated steel plate shear wall (CoSPSW) system has potential in resisting lateral wind and seismic loads in high-rise buildings. This paper presents a numerical and theoretical investigation of the shear behaviour of CoSPSWs with inelastic buckling mode of the corrugated steel plate (CSP) subjected to lateral loads. The geometry parameters of CoSPSWs with inelastic buckling of infilled plates were derived theoretically. In addition, a series of finite element analyses was conducted to simulate the performance of CoSPSWs. Parametric analyses were performed to examine the effects of key geometry parameters, such as the height–thickness ratio, aspect ratio, horizontal panel width, and corrugation angle, affecting the buckling and failure modes and the strength of CoSPSWs. Then, the demand of the surrounding frame stiffness of the CoSPSWs was investigated based on the tension field distribution of CSPs. Finally, a modified strip model was designed to predict the shear performance of the CoSPSWs. The results revealed that the CoSPSWs, owing to the tension field effect, could resist greater loads after the inelastic buckling of infilled plates. However, the height–thickness ratio and aspect ratio should be restricted during the design of tall buildings. In addition, a formula for predicting the stiffness demand of the CoSPSW was derived. The results of the modified strip model agreed well with the previous experimental data.