带竖向隔板的屈曲约束钢板剪力墙抗震性能试验研究

Experimental investigation on seismic behavior of buckling-restrained steel plate shear wall with vertical diaphragms

提出了一种带竖向隔板的屈曲约束钢板剪力墙,通过角钢加劲肋的设置在内嵌钢板与外围约束混凝土板之间形成间隙,并在内嵌钢板中部设置竖向隔板。采用1/3缩尺模型,对该新型钢板剪力墙在低周反复荷载作用下的破坏形态、滞回特性、骨架曲线、延性性能、等效刚度、承载力退化及耗能能力等性能进行研究。利用ABAQUS对试件进行了有限元模拟,并与试验结果进行了对比。结果表明,由于该新型钢板剪力墙设置竖向隔板,避免了内嵌钢板的整体屈曲,延缓了混凝土板的破坏,改善了剪力墙的受力性能,是一种性能优越的新型钢板剪力墙。

This paper put forward a novel buckling-restrained steel plate shear wall with vertical diaphragms,which was created a gap between infill plate and concrete slab by setting angle steel stiffener on the edge and two vertical diaphragms on the central region. This novel shear wall was tested under cyclic loading at a scale ratio of 1/3. The failure pattern,hysteretic characteristics,skeleton curve,ductility,equivalent stiffness,degradation of bearing capacity and energy dissipation of the specimen were analyzed by test systematically. Meanwhile,its hysteretic curve and skeleton curve were simulated by finite analysis software ABAQUS to compare with test results. Research results demonstrated that the global buckling of infill plate was avoided,and the destruction of concrete slab was delayed for the existence of vertical diaphragms. The mechanical behavior of steel plate shear wall was improved,which made it an excellent steel plate shear wall.