【摘要】 结合国内外对钢筋混凝土结构性能水平的划分标准,将型钢混凝土(SRC)结构的性能水平划分为正常使用、暂时使用、生命安全和接近倒塌四个阶段;介绍了SRC柱的主要破坏形态,提出了四个性能水平的失效判别标准和参数;在总结国内外SRC试验柱和平面框架试验研究资料的基础上,得出SRC框架结构四个性能水平极限状态对应的层间位移角限值和柱端裂缝宽度分布范围.最后结合性能抗震设计理念,提出SRC结构基于性能抗震设计尚需深入研究的问题.更多还原

【Abstract】 Combining with performance grades of reinforced concrete structures at home and abroad,the seismic performance of steel reinforced concrete(SRC)structures can be induced into four levels:normal service,temporary service,life safety and collapse prevention.The failure modes and characteristics of SRC columns are introduced,and the limit states of the four seismic performance levels and their dominating parameters are put forward.On the basis of the experiments and results of SRC frames and columns,the story drifts angle limitation and range of crack width on the column end are obtained for four different seismic performance levels.Finally considering ideas of performance-based seismic design,such problems still need much further study about SRC structures.更多还原