防屈曲加劲肋钢板剪力墙试验研究

Experimental study on buckling-restrained and stiffened steel plate shear wall

在综合考虑加劲肋型、组合型及防屈曲型薄钢板剪力墙优缺点的基础上,提出一种新型的防屈曲加劲肋钢板剪力墙。介绍了该新型防屈曲约束加劲肋钢板剪力墙的构造与工作原理,设计了一个1:3的缩尺试验试件,对其进行了拟静力试验研究,系统地分析了该新型钢板剪力墙的抗震性能及破坏特征。试验结果表明,所提出的防屈曲约束加劲肋钢板剪力墙具有较高的抗侧刚度、延性及耗能性能;预制混凝土板及加劲肋在一定程度上抑制了钢板的屈曲变形,充分地发挥了钢材的塑性,使其具有良好的滞回耗能性能;角部连接失效是导致试件破坏的主要因素。综上所述,所提出的防屈曲约束加劲肋钢板剪力墙抗震性能良好,是一种较好的新型抗侧力构件。

This paper puts forward a novel buckling-restrained and stiffened steel plate shear wall（ BRS-SPSW）,which is developed by evaluating the performances of all stiffened,combined and buckling-restrained steel plate shear walls. The constitution and work mechanism of the proposed BRS-SPSW are presented herein. A 1： 3 scale test specimen is designed for the pseudo-static test research. The hysteretic performance and damage characteristics of the novel steel plate shear wall are analyzed systematically. The experimental results show that BRS-SPSW possess the higher lateral stiffness,ductility and energy dissipation performance. The precast concrete slabs and stiffeners can restrain the buckling deformation of the infill plate to some extent,which fully develops the plasticity of steel; the failure of corner connections is the main factor for the damage of specimen. In conclusion,the proposed BRS-SPSW,which can possess high seismic performance,is a good new lateral force resisting member.