（1 上海大学土木工程系，上海 200072； 2 上海同瑞土木工程技术有限公司，上海 200092）

［摘要］通过7根外包钢加固低强度混凝土柱的偏心受压试验，研究了加固后混凝土柱在不同偏心距荷载作用下的破坏特征、受力性能和破坏机理。分别对不同偏心距和不同配扁钢箍率下的柱截面应变、扁钢箍应变、角钢应变、钢筋应变、挠度以及极限承载力等进行了分析。

［关键词］外包钢; 偏心柱; 加固; 低强度混凝土

中图分类号：TU375文献标识码：A文章编号：1002-848X(2011)06-0071\|03

Experimental research on low strength RC eccentric compression columns strengthed with angle steel

Ouyang Yu¹, Qi Jiliang¹, Cai Zhihong²(1 Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2 Shanghai Tongrui Civil Engineering Company, Shanghai 200092, China)

Abstract:Seven low strength RC columns strengthened with angle steel subjected to eccentric compression were tested. The failure types, performance characteristics and failure mechanism of the confined columns were demonstrated in detail. The behaviors  including section strain, flat steel strain, angle steel strain, steel bar strain, the lateral deflection, and ultimate strength with different eccentricity and different ratio of the flat steel were investigated in the test.

Keywords:strength with angle steel; eccentric compression column; strengthening; low strength concrete

*国家科技支撑计划子课题（2006BAJ03A03-05）：既有工业建筑结构加固改造技术研究。

作者简介：欧阳煜，副教授，博士，一级注册结构工程师，Email:oyy@trcet.com.cn。

参考文献

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［2］  MURAT SAATCIOGLU, AMIR H SALAMAT, SALIM R RAZVI. Confined columns under eccentric loading［J］. Journal of Structural Engineering, 1995, 121(11):1547\|1556.

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