【摘要】 通过对5榀型钢再生混凝土框架-再生混凝土空心砌块填充墙模型在低周反复荷载作用下的骨架曲线、滞回曲线、延性及耗能等的分析,得到骨架曲线中各特征点的试验数据。在此基础上,利用ORIGIN8.0软件拟合得到考虑各类参数影响的无量纲化骨架曲线模型,进一步回归分析提出卸载刚度和再加载刚度退化规律,最终提出型钢再生混凝土框架-再生混凝土空心砌块填充墙的恢复力模型。将实测骨架曲线与恢复力模型进行对比分析表明,该模型拟合效果较好,可用于型钢再生混凝土框架-再生混凝土空心砌块填充墙的弹塑性地震反应分析。更多还原

【Abstract】 Based on tests of five models of steel reinforced recycled concrete frame infilled with recycled concrete hollow blocks under low cyclic reversed loading,their skeleton curves,hysteretic curves,displacement ductility and energy dissipation were analysed,then the test data of feature points in the skeleton curves were obtained. On the basis of the experimental study,the test data were fitted by ORIGIN 8. 0 software and the dimensionless skeleton curve model considering the influence of various parameters,through further regression analysis,the degradation law of unloading rigidity and reloading rigidity was proposed. Ultimately,the restoring force model of steel reinforced recycled concrete frame infilled with recycled concrete hollow blocks was proposed. The comparative analysis of measured skeleton curves and restoring force model showed that this model fit better and could be used for elastic-plastic seismic response analysis of steel reinforced recycled concrete frame infilled with recycled concrete hollow blocks.更多还原