不同轴压比钢板-混凝土组合剪力墙的有限元分析

钢板-混凝土组合剪力墙是一种适用于高层建筑结构的新型抗侧力体系.选择合适的混凝土和钢材本构模型,利用ABAQUS有限元软件对单调荷载作用下的钢板-混凝土组合剪力墙进行有限元模拟.模拟结果表明墙体所受的竖向轴压力有利于提高其水平抗剪承载力;轴压比较小时,墙体水平抗剪承载力随轴压比增大而有所提高,但轴压比过大时,水平抗剪承载力又随之降低,轴压比在0.3～0.5之间时,墙体的水平抗剪承载力最大;竖向轴压力对墙体水平抗剪承载力的提高幅度最大为（fcAc＋fyAs）的4％左右.另外,轴压比越大,墙体的变形能力、延性都越差.

Finite element analysis of steel plate-reinforced concrete composite shear walls with different axial compression ratios

Steel plate-reinforced concrete composite shear wall is a new kind of anti-lateral force components for high-rise buildings. A set of elements models and constitution models are defined to simulate the performance of steel plate-reinforced concrete composite shear walls under monotonic load using ABAQUS. The results show that axial compression can enhance shear capacity of walls, and the shear capacity is the highest when axial compression ratio is 0.3--0. 5,but high axial compression ratio may cause poor deformability and ductility. And the largest improvements of shear capacity are approximately 4% of the value of （fcAo＋ fyAs）.