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以ABAQUS为模拟平台,考虑内嵌钢板参与承重,建立两种防屈曲组合钢板墙模型BR-CSPWⅠ和BR-CSPWⅡ,后者的混凝土板与钢板共同承受竖向荷载。对防屈曲组合钢板墙的受剪性能、内嵌钢板的应力分布以及混凝土面外约束板的损伤与竖向荷载变化的相关性进行有限元分析,并对2个试件进行拟静力试验。结果表明:随竖向荷载增大,内嵌钢板与混凝土板间的相互作用加强,混凝土板损伤加剧。在混凝土板设计合理,面外约束刚度足够的情况下,内嵌钢板参与承重对防屈曲组合钢板墙的受剪承载力、受剪初始刚度以及耗能能力的削弱不显著,但竖向荷载会加重防屈曲组合钢板墙的边缘框架柱的受力负担,降低其抗弯能力。
Taking ABAQUS as the simulation platform, considering the embedded steel plate involved in the bearing capacity, two types of combined buckling-resistant steel wall models BR-CSPWⅠand BR-CSPWⅡwere established, and the latter concrete slab and steel plate share the vertical load. The shear resistance of the anti-buckling composite steel wall, the stress distribution of the embedded steel plate and the correlation between the damage and the vertical load change of the concrete outer restraint plate were analyzed. The pseudo-static tests were carried out on the two specimens. The results show that with the increase of vertical load, the interaction between embedded steel plate and concrete slab strengthens and the damage of concrete slab aggravates. Under the condition of reasonable design of concrete slabs and sufficient restraint rigidity of out-of-plane, the shear strength, the initial shear stiffness and the energy dissipation capacity of the steel plate with anti-buckling are not significantly affected by the participation of the embedded steel plate in the load- Increase the buckling combined steel wall edge frame column stress load, reducing its resistance to bending.