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为对比空间位置不同的型钢混凝土(SRC)异形柱框架的抗震性能,各设计1榀边框架和中框架进行低周反复加载试验,获得其破坏形态,分析其滞回曲线、骨架曲线、承载力、延性、耗能能力、刚度和型钢应变等特性.结果表明:SRC异形柱框架符合“强柱弱梁、强构件弱节点”的抗震设计要求,滞回曲线饱满,延性好,耗能能力强;与边框架相比,SRC异形柱中框架具有更高的承载力、更强的耗能能力和更大的初始刚度,但两者的延性比较接近,刚度退化速度相差不大.
In order to compare the seismic performance of SRC special-shaped column frame with different spatial positions, the low-cycle repeated loading tests were carried out on each side frame and the middle frame of the SRC to obtain the failure morphology and analyze the hysteresis curve, the skeleton curve and the bearing capacity , Ductility, energy dissipation capacity, stiffness and strain of steel, etc. The results show that SRC special-shaped column frame conforms to the seismic design requirements of “strong column and weak beam, strong component and weak node”, with full hysteretic curve, good ductility, Compared with the side frame, SRC special-shaped column frame has higher bearing capacity, stronger energy dissipation capacity and larger initial stiffness, but the ductility of the SRC special-shaped column is closer and the rate of stiffness degradation is not much different.