| 粘贴CFRP板加固木梁试验研究 |
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| 引用本文： | 李向民,许清风. 粘贴CFRP板加固木梁试验研究[J]. 建筑结构, 2011, 0(10) |
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| 作者姓名： | 李向民 许清风 |
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| 作者单位： | 上海市工程结构新技术重点实验室;上海市建筑科学研究院(集团)有限公司; |
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| 基金项目： | 国家“十一五”科技支撑计划(2006BAJ04A03-03); 上海市科委青年科技启明星跟踪计划(11QH1402100) |
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| 摘 要： | 共进行了7根粘贴CFRP板加固木梁的对比试验研究,其中3根为对比试件,4根为粘贴CFRP板加固木梁试件。研究结果表明,粘贴CFRP板加固木梁的极限承载力有明显提高,提高幅度为13.9%～63.4%,平均提高45.3%;极限位移亦有所提高,平均提高22.2%;初始弯曲刚度略有提高,提高幅度为3.6%～22.7%,平均提高15.8%。加固木梁跨中截面仍基本符合平截面假定。粘贴CFRP板是一种有效加固木梁的方法。
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| 关 键 词： | 木梁 CFRP板 加固 受弯承载力 |
Experimental research on timber beams strengthened with CFRP plates |
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| Li Xiangmin,,Xu Qingfeng,,Co.,Ltd.,China). Experimental research on timber beams strengthened with CFRP plates[J]. Building Structure, 2011, 0(10) |
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| Authors: | Li Xiangmin Xu Qingfeng Co. Ltd. China) |
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| Affiliation: | Li Xiangmin1,2,Xu Qingfeng1,2(1 Shanghai Key Laboratory of New Technology Research on Engineering Structure,Shanghai 200032,China,2 Shanghai Research Institute of Building Sciences(Group),Co.,Ltd.,China) |
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| Abstract: | Seven timber beams were studied through comparative experiment,including three reference unstrengthened beams and four beams strengthened with CFRP plates externally bonded to the tension face.The test results show that the ultimate flexural strength of strengthened timber beams are increased by 13.9%~63.4%(with an average value of 45.3%)due to the strengthening.The ultimate displacement of strengthened beams also have an average increase of 22.2%.The initial stiffness of the strengthened beams is also sign... |
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| Keywords: | timber beam CFRP plate strengthening flexural strength |
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