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为了研究SRC框架在地震荷载作用下的工作性能,本文采用计算机-作动器联机试验方法进行了一榀单跨两层SRC框架结构地震反应试验研究.输入的地震波为ELCENTRO(1940NS)波。根据试验结果,本文对SRC框架破坏机制、变形、延性等工作性能作了初步的研究,并且根据SRC柱的滞回曲线特性确定框架的层间恢复力模型,从理论上对试验框架进行弹塑性地震反应分析,理论分析曲线与实测曲线作比较,两者符合良好,所编制的程序可以用SRC框架结构地震反应时程分析。
In order to study the performance of the SRC frame under seismic loading, a computer-actuator on-line test method was used to study the seismic response of a single-span, two-story SRC frame structure. The input seismic wave is ELCENTRO (1940 NS) wave. According to the experimental results, this paper makes a preliminary study on the failure mechanism, deformation, ductility and other work performances of SRC frames, and determines the interlaminar restoring force model of the frame based on the hysteretic curve characteristics of SRC columns, and theoretically performs the elasto-plasticity of the experimental frame. The seismic response analysis, the theoretical analysis curve and the measured curve are in good agreement. The prepared program can be used to analyze the seismic response time history of the SRC frame structure.