进行了一榀1/3比例单跨两层方钢管混凝土框架一单侧开洞薄钢板剪力墙的低周反复荷载试验,分析了其破坏过程、破坏形态及破坏机理.采用有限元软件ABAQUS对方钢管混凝土框架-单侧开洞薄钢板剪力墙进行了精细化数值模拟,分别研究了竖向边缘构件(边框柱)截面类型、开洞率巧、高厚比屏柱子抗弯刚度叩和柱子轴压比n对开洞薄钢板剪力墙滞回性能的影响.结果表明,方钢管混凝土框架一单侧开洞薄钢板剪力墙具有较高的承载力、刚度和耗能能力,开洞对结构滞回性能影响明显.
The low cyclic loading experiment was conducted for one 1/3 scale one-bay two-story concrete-filled square steel tube frame-thin steel plate shear walls(SPSWs) with side opening. The failure process, failure pattern and mechanism were investigated. The nonlinear numerical analysis of concrete-filled square steel tubular frame-thin steel plate shear walls with side opening was carried out by the finite element software ABAQUS. The influences of the column section type, opening ratio, height-to-thickness of the SPSW, column bending stiffness, and ratio of axial compression on the hysteretic behavior of thin steel plate shear wall with side opening were studied. The results show that the concrete-filled square steel tubular frame-thin steel plate shear walls with side opening have higher bearing capacity, stiffness and energy dissipation capacity. The opening exerts considerable influence on the hysteretic behavior.