| FRP加固木梁的受弯性能试验研究 |
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| 引用本文： | 曹海,刘伟庆,杨会峰,邵劲松. FRP加固木梁的受弯性能试验研究[J]. 江苏建筑, 2009, 0(4): 32-35 |
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| 作者姓名： | 曹海 刘伟庆 杨会峰 邵劲松 |
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| 作者单位： | 南京工业大学,土木工程学院,江苏南京,210009 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省建设厅招标项目 |
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| 摘 要： | 为考察纤维增强复合材料(fiber reinforced plastics/polymer,FRP)对木梁的加固效果,对比分析了3根普通木梁和33根FRP(包括CFRP和GFRP)加固木梁的极限荷载与抗弯刚度等结构性能,并探讨了构件的破坏形态与破坏机理.结果表明:采用FRP对受弯木梁进行加固是有效的,加固的效果与加固的层数、加固层的类型以及加固方式有关.在木梁受拉区设置加固层可有效提高木粱的抗弯承载力,CFRP加固层的加固效果优于GFRP的;木梁受压区设置加固层可有效提高木梁的抗弯承载力,在纯弯区横向设置FRP加固层可增强木梁受压区的性能,有效提高木梁的抗弯承载力,提高的幅度与加固层层数有关;加固层设置于木梁受压区侧部的效果优于设置于木粱受压区顶部.
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| 关 键 词： | 木梁 加固 纤维增强复合材料(FRP) 受弯性能 |
Experimental Study on Flexural Behavior of Timber Beams Strengthened with FRP |
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| CAO Hai,LIU Wei-qing,YANG Hui-feng,SHAO Jin-song. Experimental Study on Flexural Behavior of Timber Beams Strengthened with FRP[J]. Jiangsu Construction, 2009, 0(4): 32-35 |
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| Authors: | CAO Hai LIU Wei-qing YANG Hui-feng SHAO Jin-song |
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| Affiliation: | College of Civil Engineering;Nanjing University of Technology;Nanjing Jiangsu 210009 China |
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| Abstract: | Through experimental work of 3 unstrengthened control timber beams and 33 FRP(CFRP and GFRP) strengthened timber beams,the ultimate load and the bending stiffness of FRP strengthened timber beams were compared with those of unstrengthened control beams,also the failure modes and failure mechanism were discussed.The experimental results have shown that the use of FRP for flexural reinforcement timbers are effective and the effects of reinforcement depend on the number of layers of reinforcement layers and th... |
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