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通过两组钢板夹芯混凝土组合剪力墙的拟静力试验,对双向压弯荷载作用下钢板混凝土组合剪力墙的承载能力、变形能力和破坏模式进行研究,获得了试件的典型破坏形态、滞回曲线、骨架曲线、延性系数以及耗能能力等,分析面外弯矩的变化对结构力学性能的影响。研究表明:在双向压弯作用下,试件的破坏形态主要是压弯破坏;试件滞回曲线不够饱满,耗能能力一般;面外弯矩越大,试件的抗侧承载力及耗能性能越差;试件进入塑性阶段后,面外位移显著增加,呈发散趋势;试件底部截面基本满足平截面假定。
Through the quasi-static tests of two combined steel-concrete composite shear walls, the bearing capacity, deformation capacity and failure mode of the combined shear wall of steel-concrete-concrete shear walls under two-way bending and bending loads were studied. , Hysteresis curve, skeleton curve, ductility coefficient and energy dissipation capacity, the influence of the change of out of plane bending moment on the mechanical properties of the structure is analyzed. The results show that under the action of bidirectional bending, the failure mode of the specimen is mainly bending failure; the hysteresis curve of the specimen is not full enough and the energy dissipation capacity is general; the larger the out-of-plane bending moment is, The worse the performance is. After the specimen enters the plastic stage, the out-of-plane displacement increases significantly and diverges. The cross section at the bottom of the specimen basically satisfies the assumption of flat section.