The structural behaviour of precast shear wall-diaphragm connection was compared with the monolithic connection under seismic loading. The monolithic connection was made by using U-bars connecting shear wall and slab, and the precast connection was made by using dowel bars in two steps. Firstly, U-shaped dowel bars from the precast shear wall lower panel and precast slab were connected by the longitudinal reinforcement, and screed concreting was done above the precast slab. Secondly, the shear wall upper panel was connected using the dowel bar protruding from the shear wall lower panel. The gap between the dowel bars and the duct was filled with non-shrink grout. The specimens were subjected to reverse cyclic loading at the ends of the slab. This study also aimed to develop a 3-D numerical model using ABAQUS software. The non-linear properties of concrete were defined by using the concrete damaged plasticity (CDP) model to analyse the response of the structure. The precast dowel connection between the shear wall and slab showed superior performance concerning ductility, strength, stiffness and energy dissipation. The developed finite element model exactly predicted the behaviour of connections as similar to that of experimental testing in the laboratory. The average difference between the results from finite element analysis and experimental testing was less than 20%. The results point to the conclusion that the shear resistance is provided by the dowel bars and the stiffness of the precast specimen is due to the diaphragm action of the precast slab. The damage parameter and the interaction between structural members play a crucial role in the modelling of precast connections.

中文翻译：

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循环荷载下预制剪力墙板连接的抗震性能：试验与数值分析

将预制剪力墙-膜片连接的结构特性与地震作用下的整体式连接进行了比较。整体式连接是通过使用U型杆连接剪力墙和楼板来进行的，而预制连接是通过使用销钉的连接来进行两步的。首先，通过纵向钢筋将预制剪力墙下面板和预制板的U型销钉连接起来，并在预制板上方进行熨平板混凝土浇筑。其次，使用从剪力墙下面板突出的定位销连接剪力墙上面板。销钉和管道之间的缝隙充满了非收缩水泥浆。试样在板的末端受到反向循环载荷。这项研究还旨在使用ABAQUS软件开发3-D数值模型。通过使用混凝土破损塑性（CDP）模型来分析结构的响应，定义混凝土的非线性特性。剪力墙和楼板之间的预制销连接在延展性，强度，刚度和能量耗散方面表现出优异的性能。所开发的有限元模型可以准确地预测连接的行为，类似于实验室中的实验测试。有限元分析和实验测试的结果之间的平均差异小于20％。结果表明，抗剪力由销钉提供，而预制试件的刚度则取决于预制板的隔板作用。