【摘要】 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。更多还原

【Abstract】 Pseudo-dynamic test was conducted on a specimen of two-story single span recycled aggregate concrete frame.The frame was subjected to different peak acceleration based on the El Centro ground motion,the seismic performance of the frame such as dynamic performance,mechanical characteristics and deformation capacity were investigated.The test results showed that the recycle concrete frame had sufficient strength and stiffness under the action of frequent earthquakes and seismic fortification intensity earthquakes and the frame was in elastic stage.The main deformation of the frame had been recovered when unloading.The results of displacement response obtained from time-hislory analysis by SAP2000 indicated that the displacement of the analytical model was close to the test results.The research showed that recycled aggregate concrete frame had fairly good seismic performance.更多还原