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Lateral load-carrying capacity analyses of composite shear walls with double steel plates and filled concrete with binding bars

机译:双层钢板和结合筋填充混凝土组合剪力墙的侧向承载力分析

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摘要

A method is developed to predict the lateral load-carrying capacity of composite shear walls with double steel plates and filled concrete with binding bars (SCBs). Nonlinear finite element models of SCBs were established by using the finite element tool, Abaqus. Tie constraints were used to connect the binding bars and the steel plates. Surface-to-surface contact provided by the Abaqus was used to simulate the interaction between the steel plate and the core concrete. The established models could predict the lateral load-carrying capacity of SCBs with a reasonable degree of accuracy. A calculation method was developed by superposition principle to predict the lateral load-carrying capacity of SCBs for the engineering application. The concrete confined by steel plates and binding bars is under multi-axial compression; therefore, its shear strength was calculated by using the Guo-Wang concrete failure criterion. The shear strength of the steel plates of SCBs was calculated by using the von Mises yielding criterion without considering buckling. Results of the developed method are in good agreement with the testing and finite element results.
机译:开发了一种方法来预测带有双钢板的复合剪力墙和带有约束杆的填充混凝土(SCB)的侧向承载能力。使用有限元工具Abaqus建立了SCB的非线性有限元模型。使用扎带约束来连接固定杆和钢板。 Abaqus提供的表面接触用于模拟钢板与核心混凝土之间的相互作用。建立的模型可以以合理的准确度预测SCB的横向承载能力。利用叠加原理开发了一种计算方法,以预测SCB的横向承载能力,以用于工程应用。由钢板和约束杆约束的混凝土处于多轴压缩状态。因此,其抗剪强度是根据郭旺混凝土破坏准则计算的。使用von Mises屈服准则计算SCB钢板的抗剪强度,而不考虑屈曲。所开发方法的结果与测试结果和有限元结果吻合良好。

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