Cyclic tests and parametric analyses of steel grid shear walls. (January 2023)

• Record Type: Journal Article
• Authors: Chen, Zhihua; Yang, Yan; Yan, Xiangyu; Duan, Yan; Zhang, Tianzhu; Wang, Jianshuo
• Is Part Of: Journal of constructional steel research. Volume 200(2023)
• Publication Date: 2023-01
• Subjects: Steel grid shear wall -- Mechanical properties -- Quasi-static test -- Finite element analysis; Steel, Structural -- Periodicals; Building, Iron and steel -- Periodicals; Acier de construction -- Périodiques; Construction métallique -- Périodiques; 624.1821
• DOI: 10.1016/j.jcsr.2022.107647
• Languages: English
• ISSNs: 0143-974X

Abstract

Abstract: This study proposed a novel steel grid shear wall (SGSW) composed of bidirectional diagonal steel grid members and a boundary frame, in which the steel grid members are connected to the boundary frame through fishplates. The lateral resistance performances of the steel plate shear wall (SPSW) and SGSWs were compared. Subsequently, three 1:2 scale specimens were tested under lateral cyclic loading, and the mechanical properties of the SGSWs were investigated. The failure modes of the specimens corresponded to the destruction of steel grid members. A finite element analysis (FEA) model of the SGSW was established, and the FEA model was confirmed to be able to accurately simulate the behaviors of SGSWs by comparing the numerical results with test data. Parametric analyses were then conducted through FEA to determine the influence of the T-shape steel section, vertical loads, and boundary column stiffness on the mechanical properties of SGSWs. The results demonstrated that SGSWs exhibited excellent stiffness, ductility, and bearing capacity. The changes in the T-shape steel web area and stiffness of the boundary column had a significant influence on the mechanical properties of the SGSWs. Highlights: A novel steel grid shear wall (SGSW) system was proposed and investigated. Seimic behavior of SGSWs was experimentally and numerically analyzed. The SGSWs exhibited good shear resistance and energy dissipation capabilities. The increase of the web area could enhance the bearing capacity of SGSWs. Increasing the column stiffness could improve mechanical properties the of SGSWs.