高延性波纹钢板剪力墙抗震性能研究

该文提出了一种具有高弹塑性屈曲荷载、大延性变形能力的梯形波纹钢板剪力墙,并通过试验研究和数值模拟,研究了墙板参数对其滞回特性、失效模式和抗震性能指标的影响规律。研究结果表明：波纹钢板剪力墙试件表现出优秀的滞回特性,墙板屈曲均发生在变形较大的弹塑性阶段,弹塑性屈曲位移角可达2%以上;墙板宽厚比的增大可以显著提高屈曲位移角和承载能力,面外波折角度的增大能够一定程度提高屈曲位移角和承载能力;墙板宽高比的增大会减小屈曲位移角,并导致屈曲后承载力退化加快。

RESEARCH ON SEISMIC BEHAVIOR OF DUCTILE CORRUGATED STEEL PLATE SHEAR WALL

A trapezoidal corrugated steel plate shear wall with high elastic-plastic buckling load and large ductile deformation capacity was proposed. The effects of wall panel parameters on hysteretic characteristics, failure modes and seismic performance were studied based on experimental research and numerical simulation. The results show that the specimens of corrugated steel plate shear wall present excellent hysteretic characteristics. The buckling of wall panels occurs in the elastic-plastic stage with large deformation, and the elastic-plastic buckling drift ratio can exceed 2%. The buckling drift ratio and bearing capacity have significant improvement with the increase of panel width-thickness ratio. The increase of the corrugated angle of panel results in minor increase of the buckling drift ratio and bearing capacity. In addition, the increasing aspect ratio may lead to a reduction of the buckling drift ratio, and accelerate the degradation process of the post-buckling bearing capacity as well.