- 摘 要
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（1 北京特希達科技集團南京研發(fā)中心，南京 210088； 2 江蘇省建筑科學研究院，南京 210008）
［摘要］在分析木材材性試驗和木梁彎曲試驗結(jié)果的基礎(chǔ)上，提出了考慮彈塑性變形的矩形截面木梁和碳纖維布加固木梁抗彎承載力的計算方法。該方法提供一個判斷破壞模式的指標和相應于不同破壞模式的彎曲承載力計算公式，計算結(jié)果與試驗結(jié)果吻合良好。還提供了加固木梁彎曲剛度提高倍數(shù)的經(jīng)驗公式。
［關(guān)鍵詞］矩形截面木梁；加固；受彎承載力；彎曲剛度；計算方法；受彎性能
Study on the flexure behavior of rectangular section timber beams and that strengthened with CFRP sheets
Gao Benli 1,2, Zhang Min1, Jiang Jianbiao1, Yang Liangrong1(1 R&D Center of Beijing Texida Technology Group, Nanjing 210088, China; 2 Jiangsu Research Institute of Building Science, Nanjing 210008,China)
Abstract:On the basis of analysing the test results of timber mechanic property and timber beam flexure behavior, a calculation method of bending bearing capacity for rectangular section timber beams strengthened or not, considering the elasto-plastic deformation, is presented. The method provides an index for determining the failure model of beam cross section and the calculation formulae of bending bearing capacity for different failure models. The calculation results agree with the test results well. An experience formula for calculating bending stiffness increasing coefficient of strengthened timber beams is also proposed.
Keywords:rectangular section timber beam; strengthen; bending bearing capacity; bending stiffness; calculation method; flexure behavior
作者簡介：高本立，教授級高工，Email:gaobenli538@sina.com。
參考文獻
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［2］蔣湘閩，等.碳纖維布加固木梁受彎承載力理論分析［J］//馬建勛,等編.FRP與結(jié)構(gòu)補強.西安：陜西科學技術(shù)出版社出版，2005:27.
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