混凝土异形柱框架抗震性能的试验研究

以实际工程为背景,对8度区6层异形柱住宅一榀框架的1/3模型进行低周反复加载的拟静力试验,对框架的滞回曲线、骨架曲线、耗能能力、出铰机制、强度与刚度退化等进行分析。结果表明,异形柱框架结构具有较好的抗震性能。对异形柱框架进行有限元分析表明,分析结果与试验结果吻合较好,表明该有限元模型是合理的,可以用于异形柱框架结构的分析研究。

EXPERIMENTAL STUDY ON THE SEISMIC PERFORMANCE OF RC FRAMES WITH SPECIAL-SHAPED COLUMNS

Based on practical project,a pseudo-static test was conducted on a 6-story RC frame model with special shaped columns,which is 1/3 in size of the prototype under 8 degree seismic intensity.The anti-seismic property is appraised comprehensively by analyzing the hysteretic behavior,ductility,plastic hinges of beams and columns,strength and rigidity deterioration regression.The results show that RC frame with special-shaped columns has good anti-seismic property.Finite element analysis of the RC frame was conducted.The analytic result agreed well with the test result.Hence the FE model was reasonable,which could be used for the research on the RC frame structure with special-shaped columns.