- 摘 要
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[摘要]通過(guò)對(duì)碳纖維布加固鋁合金方管簡(jiǎn)支梁試驗(yàn)結(jié)果的分析可知,采用碳纖維布對(duì)鋁合金方管梁進(jìn)行加固,可以提高鋁合金方管梁的極限承載力,抑制梁跨中撓度的發(fā)展。通過(guò)對(duì)梁前后兩側(cè)及梁底應(yīng)變片的應(yīng)變發(fā)展變化規(guī)律的研究,驗(yàn)證了本次試驗(yàn)在荷載上升階段各測(cè)點(diǎn)的應(yīng)變與荷載成線性關(guān)系,近似符合平截面假定。
[關(guān)鍵詞]碳纖維布;鋁合金方管;平截面假定
中圖分類(lèi)號(hào):TU395文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2011)10-0120-03
Bending experiment and analysis of aluminum alloy square tube beam strengthened by CFRP:part Ⅰ
Liu Tong1, Zhang Jihong2, Liu Youzhong3, Ai Jun4, Li Feiyue5(1 College of Civil Engineering, Yancheng Institute of Technology,Yancheng 224051,China; 2 Construction Department, Yancheng Bureau of Construction,Yancheng 224000,China; 3 Construction Group Limited Company of Jiangsu Guofeng,Yancheng 224000,China; 4 Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing210000,China; 5 Architectural Design Limited Company of Xiamen Fanhua,Xiamen 361004,China)
Abstract:The results of the bending experiment of aluminum alloy square tube beam strengthened by CFRP show that the ultimate bearing capacity of the beam can be improved, and the mid\|span deflection of the beam can be inhibited from expanding. In the validation of the tests on the plane-section assumption, the result in rising phase of the load approximately keeps in line with plane-section assumption.
Keywords:CFRP; aluminum alloy square tube; plane-section assumption
*江蘇省建筑業(yè)科研計(jì)劃項(xiàng)目(JGJH2009\|19)。
作者簡(jiǎn)介:劉桐,副教授,碩士,Email: liutongpc@yahoo.com.cn。
參考文獻(xiàn)
[1]F M 馬佐拉尼,著. 鋁合金結(jié)構(gòu)[M]. 譚梅祝,譯.北京:冶金工業(yè)出版社,1992
[2]葉列平,崔衛(wèi),岳清瑞,等. 碳纖維加固混凝土構(gòu)件正截面受彎承載力分析[J]. 建筑結(jié)構(gòu),2001,31(3):3\|5.
[3]尚守平,彭暉,童樺,等. 預(yù)應(yīng)力碳纖維布材加固混凝土受彎構(gòu)件的抗彎性能研究[J]. 建筑結(jié)構(gòu)學(xué)報(bào),2003,24(5):24\|30
[4]吳剛,安琳,呂志濤. 碳纖維布用于鋼筋混凝土梁抗彎加固的試驗(yàn)研究[J].建筑結(jié)構(gòu),2000,30(7):3\|6
[5]劉桐,張繼紅,劉友忠. 碳纖維布加固鋁合金方管試驗(yàn)研究與有限元分析[J].施工技術(shù),2010,39(11):30\|33
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