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通过对一个轴压比为0.18的预制混凝土剪力墙和现浇对比墙的拟静力试验,研究了直螺纹灌浆套筒连接的装配式剪力墙的抗震性能.结果表明:直螺纹灌浆套筒可以有效地传递钢筋之间的应力,使套筒上下钢筋协调工作.现浇和预制剪力墙试件均属于压弯破坏,竖向钢筋受拉屈服,混凝土受压破坏.但两者破坏形态有所差别.预制试件滞回曲线较饱满,极限位移角1/48,达到目前规范的要求.水平承载力是现行公式计算值的1.2倍以上,可用现行公式计算试件的压弯承载力.
The quasi-static test of a precast concrete shear wall with axial compression ratio of 0.18 and the contrasting wall of cast-in-situ concrete was used to study the seismic behavior of fabricated shear wall with straight-threaded grouting sleeve. The results show that the straight- The tube can effectively transfer the stress between the reinforcing bars and make the upper and lower reinforcing bars of the sleeves work in coordination.The cast-in-place and prefabricated shear wall specimens belong to the buckling failure, the yielding of the vertical reinforcement and the compression of the concrete, The shape of the prefabricated specimen is quite full, the limit displacement angle is 1/48, reaching the requirement of the current standard.The horizontal bearing capacity is more than 1.2 times of the calculated value of the current formula, and the bending moment load of the specimen can be calculated by the current formula force.