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采用有限元软件ABAQUS,考虑几何非线性和面外初始缺陷的影响,对比分析钢筋混凝土板约束、刚性板约束以及无面外约束的带缝钢板剪力墙在水平荷载作用下的刚度、抗剪承载力、延性和耗能能力,并研究面外约束对带缝钢板的应力分布和面外屈曲的影响。结果表明:钢筋混凝土板可以抑制带缝钢板的弹性屈曲,降低带缝钢板的拉力带效应,提高带缝钢板剪力墙的延性、抗剪承载力和耗能能力。为了使钢筋混凝土板能更好地约束带缝钢板的面外屈曲,建议在剪力墙的小变形阶段,混凝土板不参与抗剪。
The finite element software ABAQUS was used to analyze the influence of the geometrical nonlinearity and the initial out-of-plane flaws on the stiffness of the steel plate shear wall under horizontal loads and the shear stiffness Bearing capacity, ductility and energy dissipation, and study the influence of out-of-plane restraint on the stress distribution and out-of-plane buckling of the slab steel. The results show that the reinforced concrete slabs can suppress the elastic buckling of the slab steel, reduce the tensile belt effect of the slab steel, and improve the ductility, shear capacity and energy dissipation capacity of the slab steel plate with shear wall. In order to make the reinforced concrete slabs better restrain the out-of-plane buckling of the slab steel, it is suggested that the concrete slab does not participate in the shear in the small deformation stage of the shear wall.