EXPERIMENTAL STUDY OF ANCHORAGE METHODS IN TECHNIQUE OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP SHEETS
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摘要: 预应力碳纤维布加固混凝土结构技术是一种加固效果明显、应用前景广阔的加固技术,在这项技术中对锚固方式的研究是一个至关重要的问题。通过对两组试件共7根混凝土梁布置不同的U形箍加载试验,详细分析了不同U形箍布置的锚固效果,提出了预应力碳纤维布加固技术中U形箍的布置原则,对此项技术的设计及施工有指导意义。Abstract: The technique of concrete structure strengthened with prestressed CFRP sheet is an effective technique anchorage method is an important problem in this technique.The anchorage effect of different layout of U-shaped CFRP sheets is given by load-testing 7 concrete beams.The principles of placing U-shaped CFRP sheets are proposed,which may benefit the design and construction of this technique.
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Key words:
- prestressed CFRP sheet /
- concrete structure /
- anchorage methods /
- U-shaped sheets
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岳清瑞, 杨勇新. 纤维增强复合材料与现代基础设施建设. 中国有色金属学报, 2004(5) Wight R G, Green M F, Erki M-A. Prestressed FRP Sheets forPoststrengthening Reinforced Concrete Beams. Journal of Composites forConstruction, 2001(11): 214-220 尚守平, 彭 晖, 童 桦, 等. 预应力碳纤维布加固混凝土受弯构件抗弯性能研究. 建筑结构学报, 2003(5) 李庆伟. 预应力碳纤维布加固混凝土结构预应力损失及锚固方式试验研究: [ 硕士学位论文]. 北京: 中冶集团建筑研究总院, 2005 Yang Yongxin, Yue Qingrui. Experimental Study of RC BeamsStrengthened with Prestressed CFRP Sheets MThe Eighth InternationalSymposium on Structural Engineering for Young Experts. Xuzhou:2004 CECS 146: 2003 碳纤维片材加固混凝土结构技术规程
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