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为研究核电工程中屏蔽厂房所采用的结构形式——双钢板混凝土组合墙体的抗震性能,对不同距厚比、不同抗剪连接件形式的双钢板混凝土组合墙体进行了拟静力抗震性能试验研究。试验模型按照1/5缩尺,设计了4个双钢板混凝土组合墙体试件。通过试验,分析了组合墙体的承载力、延性、刚度及滞回特性、耗能能力和破坏特征。结果表明:随着距厚比的减小,试件极限承载力有所提高但不显著,距厚比对栓钉的断裂点是否达到构件的极限承载力有明显影响,加劲肋连接件对提高构件的极限承载力、整体刚度、延性和耗能能力效果显著;4个试件的内部混凝土开裂荷载基本相同,抗震性能良好。
In order to study the seismic behavior of the double-steel-concrete composite wall used in shielded buildings in nuclear power engineering, the quasi-static seismic performance of the double-steel-plate concrete composite wall with different gauge-thickness and different shear connectors Experimental Research. According to the 1/5 scale, the experimental model is designed with four double-wall concrete composite wall specimens. Through tests, the bearing capacity, ductility, stiffness and hysteretic characteristics, energy dissipation capacity and failure characteristics of the composite wall are analyzed. The results show that the ultimate bearing capacity of the specimen increases with the decrease of the thickness-to-thickness ratio, while the effect of the thickness-to-thickness ratio on the ultimate bearing capacity of the members has a significant effect. The ultimate bearing capacity, the overall stiffness, the ductility and the energy dissipation capacity of the members are remarkable. The cracking load of the four concrete specimens is basically the same and the seismic performance is good.