Cyclic performance of prefabricated buckling-restrained steel plate shear wall with two-side connections

Abstract

A new prefabricated buckling-restrained steel plate shear wall (PBRSPSW) with two-side connections was proposed. It mainly consists of an internal steel plate and steel panels with channels. Two specimens were designed and subjected to quasi-static loading tests to compare the seismic performance of the ordinary steel plate shear wall (SPSW) against the novel PBRSPSW. The experimental results indicate that the bearing capacity of the PBRSPSW is 52.32 % higher than that of the SPSW. At the end of loading, the stiffness loss of the SPSW was 78.93 % and that of the PBRSPSW was 46.67 %. This data demonstrates that the addition of channel steel on both sides of the steel plate can enhance the load-bearing capacity of the shear wall and effectively mitigate out-of-plane deformation, resulting in superior seismic performance compared to conventional steel plate shear walls. Moreover, slotted holes were strategically provided in the internal steel plate to facilitate the frictional energy dissipation mechanism between the internal steel plate and the steel panels. Based on the test results, an effective numerical model was established, enabling comprehensive stress-strain development analysis and stress mechanism assessment. The PBRSPSW proposed in this study offers the advantage of efficient assembly, providing a valuable reference for future in-depth research.