【摘要】 根据型钢混凝土(SRC)异形柱框架的破坏特点,将其性能水平划分为正常使用、暂时使用、修复后使用、生命安全和接近倒塌5档,并建立相应的抗震性能目标.在统计发生弯曲破坏和剪切斜压破坏的SRC异形柱侧移角试验结果的基础上,分析配钢形式、轴压比、剪跨比和荷载方向对侧移角的影响规律,给出SRC异形柱对应5个性能水平的变形限值.进而对SRC异形柱框架的层间位移角试验结果进行分析,并参照中国现行抗震规范和其它相关研究结果,建议SRC异形柱框架对应5个性能水平的层间位移角限值,分别取1/450、1/150、1/75、1/45和1/40.研究可为建立SRC异形柱框架基于性能的抗震设计理论提供参考.更多还原

【Abstract】 According to the failure characteristics of steel reinforced concrete(SRC) frame with special-shaped columns,five performance levels were put forward,namely,full operation,temporary operation,repairable operation,life safety and collapse prevention,and the corresponding seismic performance objectives were established.Based on the experimental results of drift ratio of SRC special-shaped columns subjected to flexural failure and sheardiagonal compression failure,the influence law of steel types,axial compression ratios,shear span ratios and loading angle on drift ratio were analyzed,and the limit value of deformation of SRC special-shaped column corresponding to five performance levels was proposed.Further more,referring to the experimental results of inter-story drift ratio of SRC frame with specialshaped columns,code for seismic design of buildings and other research productions,the limits of inter-story drift ratio of SRC frame with special-shaped columns corresponding to five performance levels were suggested,which were 1/450,1/150,1/75,1/45 and 1/40.The study can provide reference for the establishment of performance-based of seismic design theory for SRC frame with special-shaped columns.更多还原