带约束拉杆的双钢板-混凝土组合剪力墙承载力及变形分析

Bearing Capacity and Deformation Analysis on Composite Concrete and Double-steel-plate Shear Walls with Binding Bars

在对16个带约束拉杆的双钢板-混凝土组合剪力墙试件的滞回加载试验研究及数值模拟的基础上,分析得出该类型组合剪力墙在滞回荷载作用下的破坏模式以及影响其承载力和变形的主要参数。并综合考虑各主要参数影响效应,以承载力叠加法为基础,对其承载力和变形计算式进行数值拟合,推导出带约束拉杆的双钢板-混凝土组合剪力墙水平承载力和变形的计算公式。同时通过定量计算确定出该类型组合剪力墙在滞回荷载作用下的三折线型骨架曲线,该骨架曲线反映了组合剪力墙在水平荷载作用下的受力过程,计算值与试验值对比吻合较好。

Based on hysteretic loading experiments and numerical modeling of 16 specimens of composite concrete and double-steel-plate shear walls with binding bars, the failure model and main influencing parameters of bearing capacity and deformation were studied. After parametric analyses based on the bearing capacity superposition, empirical formula for computing the lateral bearing capacity and deformation of composite shear walls with binding bars were derived by numerical fitting. Furthermore, the triple line skeleton curve under hysteretic loading was confirmed by quantitative computation, which reflects the loading process of the composite shear wall under horizontal loads. The calculated value matches well with the experimental data.