884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 上海大學土木工程系，上海 200072； 2 上海同瑞土木工程技術(shù)有限公司，上海 200092）

［摘要］通過7根外包鋼加固低強度混凝土柱的偏心受壓試驗，研究了加固后混凝土柱在不同偏心距荷載作用下的破壞特征、受力性能和破壞機理。分別對不同偏心距和不同配扁鋼箍率下的柱截面應變、扁鋼箍應變、角鋼應變、鋼筋應變、撓度以及極限承載力等進行了分析。

［關(guān)鍵詞］外包鋼; 偏心柱; 加固; 低強度混凝土

中圖分類號：TU375文獻標識碼：A文章編號：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

*國家科技支撐計劃子課題（2006BAJ03A03-05）：既有工業(yè)建筑結(jié)構(gòu)加固改造技術(shù)研究。

作者簡介：歐陽煜，副教授，博士，一級注冊結(jié)構(gòu)工程師，Email:oyy@trcet.com.cn。

參考文獻

［1］  MURAT SAATCIOGLU, SALIM R RAZVI. Strength and ductility of confined concrete［J］. Journal of Structural Engineering, 1992, 118(6):1590\|1607.

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

［3］  盧亦焱,童光兵,張?zhí)栜? 外包鋼與碳纖維布復合加固鋼筋混凝土偏壓柱試驗研究［J］. 建筑結(jié)構(gòu)學報,2006, 27(1):106\|111.

［4］  盧亦焱,史健勇,趙國藩. 外包鋼與碳纖維布復合加固軸心受壓混凝土柱的試驗研究［J］. 建筑結(jié)構(gòu)學報,2003, 24(5):18\|23.