A series of quasi‐static tests was presented to study the lateral behavior of concrete sandwich walls and the precast concrete sandwich walls; the finite element analysis (FEA) models were built for numerical simulation of the specimens, and the parameters affecting the seismic performance of sandwich walls, and the precast sandwich walls were also analyzed based on the FEA models. The results show that the shear failure occurs in regular squat shear wall; the setting of the foam plate effectively reduces the stiffness and load capacity, and the reasonable design of sandwich region is conducive to the seismic performance. The responses obtained by the FEA models match well with the experimental results. The stiffness and load capacity of sandwich wall are increased, but the ductility is reduced when the axial load is increased; the deformation capacity can be greatly improved by increasing the aspect ratio but at the cost of load capacity and stiffness; the reasonable match of load capacity, stiffness, and ductility can be achieved by maintaining the appropriate length and thickness of the foam plate. The greater the friction force of CAF in the vertical seam of precast sandwich wall, the greater the load capacity and initial stiffness and the stronger the integrity of the jointed wall. When the strength of SRS in the horizontal seam is small, the concrete sandwich wall basically maintains elasticity; the deformation is mainly concentrated on SRS; when the strength of SRS is too large, SRS do not yield or the yield displacement is large, and the load capacity is mainly affected by the concrete sandwich wall.

中文翻译：

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混凝土夹心墙侧向性能的试验与数值研究

提出了一系列准静态试验，以研究混凝土夹心墙和预制混凝土夹心墙的侧向性能。建立了有限元分析模型，对试件进行了数值模拟，并在此基础上分析了影响夹心墙抗震性能的参数，并对预制夹心墙的抗震性能进行了分析。结果表明，剪力破坏发生在规则的深蹲剪力墙中。泡沫板的设置有效降低了刚度和承载能力，夹层区域的合理设计有利于抗震性能的提高。FEA模型获得的响应与实验结果非常吻合。夹心墙的刚度和承载能力增加，但轴向载荷增加时延展性降低。通过增加长宽比可以大大提高变形能力，但要以承受载荷能力和刚度为代价；通过保持泡沫板的适当长度和厚度，可以实现载荷能力，刚度和延展性的合理匹配。CAF在预制夹心墙垂直接缝中的摩擦力越大，则承载能力和初始刚度越大，且连接墙的完整性越强。当水平缝中的SRS强度较小时，混凝土夹心墙基本保持弹性。变形主要集中在SRS上；当SRS强度太大时，SRS不屈服或屈服位移大，而承载力主要受混凝土夹心墙的影响。