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总结了钢筋混凝土墙的延性模型和非线性性能预测的研究结果。采用承载力设计方法,进行地震荷载下的钢筋混凝土墙设计。回顾了带有多层界面基于韧性的无弹性多层有限单元。提出了模拟非线性滞回性能的分析结构工程模型。对钢筋混凝土墙滞回性能的所有基本特征,包括强度退化、刚度退化、粘结滑移效应、非弹性剪切变形机制和约束效果,明确地进行了分析和试验模拟。确定了所提出模型的有效性,研究了周期荷载下,荷载-位移滞回响应和耗能能力分析与试验结果之间的相关性。分析与试验结果吻合较好,显示本文所提出的模型能可靠地用于钢筋混凝土结构的性能预测。
The research results of ductility model and nonlinear performance prediction of reinforced concrete wall are summarized. The design method of bearing capacity is adopted to design the reinforced concrete wall under earthquake load. The non-elastic multilayer finite element based on toughness with multi-layer interface is reviewed. An analytical structural engineering model is proposed to simulate the nonlinear hysteretic behavior. All the basic characteristics of hysteretic behavior of reinforced concrete wall, including strength degeneration, stiffness degradation, bond slip effect, inelastic shear deformation mechanism and restraint effect, have been clearly analyzed and experimentally simulated. The validity of the proposed model is confirmed. The correlation between load-displacement hysteresis response and energy dissipation capacity and test results under cyclic loading is studied. The analysis is in good agreement with the experimental results, which shows that the model proposed in this paper can be reliably used to predict the performance of reinforced concrete structures.