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分别基于三维实体单元模型、纤维单元模型、弯剪分析模型和构件恢复力模型,对2个钢筋混凝土剪力墙试件进行了滞回性能的模拟分析。考虑了试件的弯曲与剪切破坏形态,并将各模型模拟得到的剪力墙滞回曲线与试验结果进行了对比。结果表明,三维实体单元模型模拟得到的滞回曲线在达到极限荷载前与试验结果吻合良好;纤维单元模型可有效模拟弯曲破坏的剪力墙试件,但对剪切破坏的剪力墙试件模拟效果较差;弯剪分析模型和构件恢复力模型可较好地模拟分析弯曲或剪切破坏剪力墙试件的滞回性能。研究可为钢筋混凝土剪力墙结构的抗震分析和设计提供参考。
Based on three-dimensional solid element model, fiber unit model, bending shear analysis model and component restoring force model, the hysteretic behavior of two reinforced concrete shear wall specimens were simulated. The bending and shear failure modes of the specimens are considered, and the hysteretic curves of the shear walls obtained from the model simulations are compared with the experimental results. The results show that the hysteresis curve simulated by three-dimensional solid element model is in good agreement with the experimental results before reaching the ultimate load. The fiber element model can effectively simulate the failure of shear wall specimens, but the shear failure of the shear wall specimens The simulation results are poor. The bending shear analysis model and component restoring force model can well simulate and analyze the hysteretic behavior of shear wall specimens under bending or shear failure. The research can provide a reference for the seismic analysis and design of reinforced concrete shear wall structures.