Experimental and numerical investigation of arc-shaped corrugated steel plate damper

Abstract

Shear panel damper (SPD) is a commonly utilized hysteretic steel plate damper for energy dissipation. However, the premature buckling of the web plate of SPD has become a major issue, leading to a reduction in the strength and energy dissipation capacity of the damper. Various solutions have been proposed to address this issue, however, unfavorable factors, such as the introduction of additional residual stresses and the potential weakening of the web plate, would reduce the energy dissipation capacity and ductility of the damper and considerably complicate the overall configuration. This study proposes an arc-shaped corrugated steel plate damper (ACSPD) as a solution to enhance the buckling resistance of the web plate. The primary objective of this study is to investigate the mechanical behavior, energy dissipation capacity and failure mode of ACSPD with different configurations and compare against SPD. Quasi-static experimental tests were conducted on two SPD specimens and three ACSPD specimens, followed by further finite element analysis. The test and numerical results indicate that the ACSPD provides improved out-of-plane buckling resistance while preserving the same energy dissipation mechanism and similar mechanical characteristics as its SPD counterpart.