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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.
According to the damage characteristics of special-shaped steel frame (SRC) special-shaped column frame, its performance level is divided into normal use, temporary use, repair after use, life safety and near collapse 5 files, and establish the corresponding seismic performance target. Based on the results of side-shift angle test of SRC special-shaped column sheared by shear and baroclinic pressure, the influence rule of steel configuration, axial pressure ratio, shear-span ratio and load direction on side-shift angle were analyzed, and 5 corresponding SRC special-shaped columns were given. Deformation limit of the performance level. Then analyze the results of the interlayer displacement angle test of the SRC special-shaped column frame, and refer to the current Chinese seismic code and other relevant research results. It is recommended that the SRC special-shaped column frame corresponds to the inter-layer displacement angle of 5 performance levels. The limits are taken as 1/450, 1/150, 1/75, 1/45, and 1/40, respectively. The study can provide a reference for building a performance-based seismic design theory for SRC special-shaped columns.