型钢再生混凝土框架—填充墙结构抗震性态水平和容许变形值研究

Study on seismic performance levels and allowable deformation values of steel reinforced recycled concrete frame structure with infilled wall

进行了2个1/2.5比例的型钢再生混凝土框架-填充墙结构的低周反复加载试验,主要研究轴压系数对型钢再生混凝土框架-填充墙结构破坏形态的影响和该结构在不同抗震性态水平的变形指标.结合现阶段国内外对钢筋混凝土结构划分性能水平的标准,将其划分为正常使用、暂时使用、生命安全和接近倒塌四个阶段;通过试验结果分析了型钢再生混凝土柱和型钢再生混凝土框架-填充墙结构的主要破坏形态、受力模式及特点,提出了上述四个性能水平划分的判别参数及标准;在总结国内外型钢再生混凝土柱和型钢再生混凝土框架-填充墙结构试验研究资料的基础上,得出型钢再生混凝土柱和型钢再生混凝土框架-填充墙结构各性能水平极限状态对应的层间位移角容许变形值.

Based on the experimental study of two 1/2.5-scaled model of steel reinforced recycled concrete frames with infilled wall under low cyclic reversed loading, the effects of the axial compression ratio on the failure mode of the structure and the seismic performance parameters under different performance levels of steel reinforced recycled concrete columns and steel reinforced recycled concrete frames with infilled wall were investigated. Combining with standard of performance level of reinforced concrete structures at home and abroad at the present stage,the performance of steel reinforced recycled concrete columns and steel reinforced recycled concrete frames with infilled wall structure level is divided into four stages： regular employ, temporary employ, life safety and approaching collapse. According to the test results, the failure pattern of frame,main force pattern and characteristics were analyzed, and four failure criteria and parameters of performance levels were put forward. In the summing-up of the framework on the basis of experimental research data at home and abroad, steel reinforced recycled concrete columns and the steel reinforced recycled concrete frames with infilled wall’s interlayer displacement angle of tolerant deformation value range are obtained corresponding to each performance level limit state.