- 摘 要
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(1 華僑大學土木工程學院，泉州 362021; 2 中國華僑大學建筑土木(澳門)協(xié)會，澳門)
［摘要］通過對9根矩形截面木梁的受彎靜力試驗，進行了玻璃纖維布（GFRP）加固木梁抗彎性能的研究, 分析了加固梁的承載力、撓度等結構性能。試驗結果表明，在木梁受拉區(qū)粘貼GFRP是提高木梁抗彎性能的有效方法。針對木梁的幾種破壞現(xiàn)象，對加固木梁的破壞方式的界限破壞形態(tài)進行了分析，推導出GFRP加固矩形木梁抗彎極限承載力的計算公式。將計算結果與試驗結果進行了比較，兩者吻合良好。
［關鍵詞］木梁;玻璃纖維布;抗彎加固
Experimental study on bending behavior of timber beams reinforced with GFRP sheets
Wang Quanfeng1, Li Fei1, Chen Haojun2, Huang Yihui1, Yang Yongxin1, Xu Yuye1(1 College of Civil Engineering, Huaqiao University, Quanzhou 362021, China; 2 Association of Architecture and Civil Engineering of Huaqiao University, Macao, China)
Abstract:According to the static tests of 9 rectangular timber beams strengthened with GFRP sheets, the performance indexes, such as the bearing capacity, deflection of reference beams and reinforced beams,have been analyzed. The results show that GFRP sheets have a good strengthening effect for timber beams. According to several types destroyed states of timber beams，the limit destroyed shape of destroyed mode was analyzed. And the formula of limit carrying capacity of rectangle timber beam reinforced by GFRP was induced. The result of the formula was compared with the experiment result，and these two matched well.
Keywords:timber beams; GFRP; bending strengthening
*澳門特別行政區(qū)科學技術發(fā)展基金項目(524/263/SAF/2008);泉州市科技計劃項目(2006G7)。
作者簡介：王全鳳，教授，博士，博導，一級注冊結構工程師，Email：qfwang@hqu.edu.
cn。
參考文獻
［1］王增春，何艷麗，王溥,等. FRP加固木結構的應用和研究［J］. 建筑技術開發(fā), 2004, 31(3): 13-14.
［2］謝啟芳，趙鴻鐵. 碳纖維布加固木梁抗彎性能的試驗研［J］. 工業(yè)建筑, 2007, 37(7): 104-107.
［3］《木結構設計手冊》編輯委員會. 木結構設計手冊［M］. 北京：中國建筑工業(yè)出版社, 2005.
