【摘要】 根据目前已有试验资料和理论分析,结合钢筋锈蚀引起结构破坏形态的改变,综合考虑结构各种耐久性损伤因素,并对箍筋锈蚀进行修正,提出了锈蚀钢筋混凝土压弯构件基于地震损伤的恢复力模型的确定方法。通过与现有试验进行对比分析,表明模型描绘的骨架曲线与试验结果总体吻合较好,模型计算的滞回曲线所描述的现象与试验一致,该恢复力模型可在损伤钢筋混凝土结构地震反应分析中采用。更多还原

【Abstract】 Based on available experiments and theoretical analyses,combining with morphological changes of the structures due to steel corrosion and considering all kinds of durability damage to structure,and amendment caused by stirrup corrosion,the method to determine the restoring force model of corroded reinforced concrete members under flexural and compressive stress is proposed.Based on the comparison with the existing experimental data in the available references,the calculated skeleton curves of this model agree well with the trial values of references and the calculated hysteretic curves of the model is in agreement with the experiment results in references.This can be used in the seismic response analysis of damaged reinforced concrete structures.更多还原