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通过5片预制普通混凝土(NC)墙板内现浇自密实混凝土(SCC)叠合剪力墙试件,2片预制普通混凝土墙板内现浇普通混凝土叠合剪力墙试件的低周反复荷载试验,研究在不同墙体边缘构件约束形式、轴压比以及保温层设置与否等条件下,预制墙板内现浇SCC叠合剪力墙的抗震性能,分析现浇SCC与预制墙板叠合剪力墙受力全过程,以及承载能力、破坏形态、滞回曲线、骨架曲线、刚度退化曲线、延性性能、耗能能力等,并将现浇SCC与现浇NC两种叠合剪力墙进行对比。分析结果表明:现浇SCC与预制墙板叠合剪力墙具有较好的抗震性能;两侧预制墙板之间的桁架钢筋起着良好连接作用,使预制加现浇的叠合墙体能整体协同受力;预制墙板内现浇SCC叠合剪力墙承载力不低于预制墙板内现浇NC叠合剪力墙;两者的受力性能、破坏形态及裂缝分布基本相同,滞回曲线、耗能能力、刚度退化等指标接近;预制墙板内现浇SCC叠合剪力墙的延性好于预制墙板内现浇NC叠合剪力墙;轴压比从0.1增加到0.2,有利于改善叠合墙体承载力;与不设置边缘构件叠合剪力墙相比,边缘构件采用暗柱形式的叠合剪力墙整体工作性能增强。
Through the cast-in-situ self-compacting concrete (SCC) composite shear wall specimen in 5 prefabricated ordinary concrete (NC) wall panels, the low profile The repeated loading tests are carried out to study the seismic behavior of the cast-in-situ SCC laminated shear wall in prefabricated slab walls under the constraints of different wall boundary components, axial compression ratio and the setting of thermal insulation layer. The effects of in-situ SCC and precast wall The whole process of the composite wall shear force, as well as the carrying capacity, failure morphology, hysteresis curve, skeleton curve, stiffness degradation curve, ductility, energy dissipation capacity, and will be combined with cast-in-place SCC and NC two Shear wall for comparison. The analysis results show that the cast-in-place SCC and prefabricated wall panels have better seismic performance. The truss steel bars between prefabricated wall panels on both sides play a good role in connecting the precast and cast-in-situ laminated wall bodies The overall load-bearing force; prestressed concrete wall cast-in-situ SCC composite shear wall bearing capacity of not less than prefabricated cast-in-situ NC laminated shear wall; both the stress performance, damage morphology and fracture distribution are basically the same, Hysteresis curve, energy dissipation capacity and stiffness degradation. The ductility of cast-in-situ SCC laminated shear wall in prefabricated wall is better than cast-in-situ NC composite shear wall in prefabricated wall. The axial compression ratio increases from 0.1 to 0.2, which is beneficial to improve the bearing capacity of the composite wall. Compared with the composite shear wall without the edge member, the integral work performance of the edge member using the laminated column wall with the dark column is enhanced.