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完成了6个带竖向接缝的预制混凝土空心模剪力墙试件在恒定轴力作用下的拟静力试验,研究了墙体的受弯性能以及竖向接缝的连接性能,明晰了墙体的破坏过程和破坏形态。试验结果表明:墙体破坏形态与钢筋混凝土剪力墙相似,破坏时墙体根部混凝土压溃、边缘构件纵筋压曲;部分墙体的破坏区域发展至中部墙板,预制混凝土与后浇混凝土剥离;竖向接缝构造合理、连接可靠,能够保证墙体的整体性能,对受弯性能基本无影响;试件的转角延性系数为4.35~12.54,具有良好的延性;提高边缘构件纵筋配筋率和轴压比,墙体的承载力提高,混凝土压溃面积增大;采用单排竖向插筋对墙体的受弯性能影响较小;GB 50010—2010《混凝土结构设计规范》的计算方法可用于计算空心模剪力墙试件的承载力,计算结果较为保守。
The quasi-static tests of six precast concrete hollow-walled shear wall specimens with vertical joints under constant axial force were completed, and the flexural performance of the wall and the connection performance of vertical joints were studied. Wall destruction process and destruction of form. The test results show that the failure mode of the wall is similar to that of the RC shear wall, the concrete at the root of the wall is crushed and the longitudinal bar buckles at the failure of the wall. The damage area of some walls develops to the middle wall, the precast concrete and the post- The vertical joint has a reasonable structure and reliable connection, which can ensure the overall performance of the wall and has substantially no influence on the bending performance. The corner ductility coefficient of the specimen is 4.35 to 12.54, and has good ductility; and improves the longitudinal reinforcement of the edge component Reinforcement ratio and axial compression ratio, the bearing capacity of the wall is increased and the crushing area of the concrete is increased. The single-row vertical stiffeners have little effect on the bending performance of the wall. GB 50010-2010 “Code for Design of Concrete Structures” The calculation method can be used to calculate the bearing capacity of the hollow die shear wall specimens, the calculation results are more conservative.