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基于4个高强混凝土剪力墙试件在低周往复水平荷载作用下的抗震性能试验结果,利用有限元软件ABAQUS,选用合适的拉、压损伤本构关系以及单元模型,建立高强混凝土剪力墙的有限元模型,模拟其加载全过程和受力性能,模拟滞回曲线与试验滞回曲线吻合较好。在此基础上,采用相同的有限元模型和材料损伤本构关系,分析影响高强混凝土剪力墙抗震性能的主要因素,包括轴压比、约束边缘构件的配箍特征值、混凝土强度和边柱纵筋配筋率,研究影响剪力墙抗震性能参数的限值并给出其范围。
Based on the test results of the seismic behavior of four high-strength concrete shear wall specimens under low-level reciprocating horizontal loading, the finite element software ABAQUS was used to select the appropriate constitutive model and element model of the tension and compression damage to establish the high-strength concrete shear wall The finite element model was used to simulate the whole process of loading and the force performance. The simulated hysteresis curve was in good agreement with the experimental hysteresis curve. Based on this, the same finite element model and material damage constitutive relationship are used to analyze the main factors affecting the seismic performance of high-strength concrete shear walls, including axial compression ratio, bracing characteristics of confined edge members, concrete strength and side columns Longitudinal reinforcement ratio, study the impact of shear wall seismic performance limits and give its scope.