CFRP加固木梁受弯性能的试验研究  

EXPERIMENTAL STUDY ON THE FLEXURAL BEHAVIORS OF TIMBER BEAMS STRENGTHENED BY CFRP

作　　者：周钟宏 刘伟庆[2] 张怀金[3] 

机构地区：[1]南京长江都市建筑设计股份有限公司,南京210002 [2]南京工业大学土木工程学院,南京210009 [3]山东省建筑设计研究院,济南250001

出　　处：《建筑技术开发》2013年第5期2-6,共5页Building Technology Development

基　　金：国家自然科学基金(50578075)资助项目

摘　　要：通过10根木梁的受弯试验,研究碳纤维布加固木梁的破坏特征、受力性能及承载力计算方法。试验结果表明,采取碳纤维布加固木梁,其承载力得到大幅度的提高,延性显著改善,加固前后截面应变均符合平截面假定。就碳纤维布加固木梁提出了相应的设计建议,可供工程实践参考。Through the flexural experiments on 10 timber beams, the failure pattern, structural behaviors and calculating method of ultimate strength of the beams strengthened by carbon fiber reinforced polymer （CFRP）are studied in this paper. The test results indicate that the ultimate load bearing capacity and the ductility of the timber beams is greatly enhanced after strengthened by CFRP,and the longitudinal strains of intact beams and strengthened beams are all consistent with the assumption of plane section. Finally, the design method and some suggestion for the CFRP strengthened timber beams are presented,which provide references for its engineering application.

关 键 词：CFRP 加固 木梁 受弯 

分 类 号：TU366.2[建筑科学—结构工程]