李晓轩**   严士超
    （天津大学土木工程系  300073）

[提要]  对1/2缩尺比例、单层单跨的3榀钢筋混凝土T形柱斜撑框架和1榀钢筋混凝土T形柱框架在低周反复水平荷载作用下进行了试验研究，分析了钢筋混凝土异形柱斜撑框架的承载力、刚度、延性、恢复力特性、耗能能力及破坏机制等。研究结果表明，钢筋混凝土T形柱斜撑框架结构具有良好的抗震性能。
[关键词]  钢筋混凝土异形柱斜撑框架  斜撑抗震性能恢复力特性

Bascd on the cxpcrimcntal study of 3 R.C.T-shapcd column braccd frame modcls and l R.C.T-shapcd column frame modcl of l/2 scale single storcy and single span undcr low frcqucncy cyclic and rcvcrscd latcraJ loads, the strcngth, stiffncss, ductility, rcstoring force charactcristics, cncrgy consumption ability as wcll as the failure mcchanism of R.C.T-shapcd column braccd frame structure have bccn carricd out.  It was shown by the cxpcrimcntal rcsults that the carthquake rcsistant bchaviour of R.C. T-shapcd column braccd frame structure is satisfactory.
Keywords:  R.C.T-shapcd column braccd framc; bracing; carthquake rcsistant bchaviour; rcstoring force charactcristics