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对一榀单跨二层再生混凝土框架进行拟动力试验,采用不同加速度峰值的El Centro地震波激励,研究框架动力性能、受力特点、变形性能等抗震性能。试验表明:再生混凝土框架在多遇地震和设防裂度地震作用下具有足够的强度和刚度,框架处于弹性工作状态,加载至框架屈服,卸载后残余变形较小。采用结构通用有限元分析软件SAP2000对试验框架进行弹塑性动力时程分析,求出其位移响应,并与试验结果进行比较。试验研究和理论分析表明,再生混凝土框架具有良好的抗震性能。
Pseudo-dynamic tests on a single-span single-story two-story RC frame with El Centro seismic excitation with different acceleration peaks are carried out to study the seismic performance of the frame such as dynamic performance, mechanical characteristics and deformation performance. Experimental results show that the recycled concrete frame has sufficient strength and rigidity under earthquake and crack-resistant earthquake, and the frame is in elastic working state. After being loaded into the frame, the residual yield deformation is small and the residual deformation is small. The general structural finite element analysis software SAP2000 was used to elastoplastic dynamic time history analysis of the test frame, and the displacement response was obtained and compared with the test results. Experimental research and theoretical analysis show that the recycled concrete frame has good anti-seismic performance.