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对4个采用插筋灌浆连接的装配式混凝土剪力墙连接试件进行静力加载试验,采用已有的界面受剪承载力计算方法进行计算,并与试验结果进行对比。采用有限元分析软件Msc.Marc对插筋灌浆连接拼缝的受剪性能进行非线性有限元分析,在模型验证的基础上,分析了轴压比、插筋数量以及界面粗糙程度对拼缝受剪性能的影响。研究结果表明:试件的初始破坏为拼缝处混凝土与砂浆的界面破坏,拼缝处出现明显的剪切通缝;混凝土与砂浆界面黏结破坏以后,界面剪力主要由拼缝处的插筋承担,试件呈现良好的延性;达到极限荷载以后,随着试验墙体劈裂裂缝的不断增加以及裂缝处混凝土剥落,试件荷载下降。在实际工程设计中,为了尽量避免拼缝破坏发生在预制构件破坏之前,应按照要求增大拼缝插筋配筋率或选取较高强度等级的插筋。
The static load tests of four assembled concrete shear wall connected specimens with plug tendons and grouted connections were carried out. The calculated interfacial shear bearing capacity was calculated and compared with the test results. The finite element analysis software Msc.Marc was used to conduct the nonlinear finite element analysis on the shear performance of the plugging grout connection patchwork. Based on the model verification, the influence of axial compression ratio, Shear the impact of performance. The results show that the initial failure of the specimen is the interface failure between the concrete and the mortar at the patchwork joint, and the obvious shear through seam occurs at the patchwork joint. After the interface between the concrete and the mortar is damaged, Bearing, the specimen showed a good ductility; reach the ultimate load, with the test wall cracking and concrete cracked at the crack, the specimen load drops. In practical engineering design, in order to avoid the occurrence of patchwork damage before the destruction of prefabricated components, the percentage of reinforcement of patchwork should be increased or the grade of reinforcement should be selected according to requirements.