- 摘 要
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(1 東南大學(xué),南京 210093; 2 江蘇省建筑科學(xué)研究院結(jié)構(gòu)所, 南京 210008)
[摘要]用速生楊木LVL制作了一批試驗柱并外貼碳纖維布箍對柱增強,進(jìn)行軸心受壓試驗,通過試驗選擇了合理的柱截面形式。結(jié)果表明采用碳纖維布箍可以提高楊木LVL柱的承載力,改善柱的延性。試驗還表明合適的碳纖維布體積配箍率是必要的,可以保證破壞形式最佳,獲得最大承載力。分析試驗結(jié)果給出了承載力計算方法。
[關(guān)鍵詞]楊木LVL;碳纖維布;柱;試驗研究
Experimental study on poplar LVL columns strengthened with CFRP sheet hoops
Li Shihong1, Gao Benli2, Li Jiaqing2(1 Southeast University, Nanjing 210093,China; 2 Jiangsu Research Institute of Building Science,Nanjing 210008,China)
Abstract:The axial compression tests of the poplar LVL columns strengthened with CFRP sheet hoops have been carried out. The best column cross section model has been selected. The test results indicate that the CFRP sheet hoops could enhance the ultimate capacity and improve ductility of the poplar LVL columns obviously. Tests also show that it is necessary to take a suitable CFRP volume hoop mate for ensuring the best failure mode occurred and thus obtaining the maximum load-bearing capacity. Finally,a calculating method of load bearing capacity has been presented.
Keywords:poplar LVL; carbon fiber sheets; column; experimental study
作者簡介:李世宏,博士研究生,高工,Email:lshxoxo@126.com。
參考文獻(xiàn)
[1]李世宏,高本立,李家青.碳纖維布增強楊本LVL梁試驗研究[J].建筑結(jié)構(gòu),2009,39(2).
[2]GB50005—2003木結(jié)構(gòu)設(shè)計規(guī)范[S].北京:中國建筑工業(yè)出版社,2003.
[3]龍衛(wèi)國,楊學(xué)兵,等.木結(jié)構(gòu)設(shè)計手冊[M].北京:中國建筑工業(yè)出版社,2005.