南昌工程学院学报2007，Vol.26Issue(3)：7-14,8.
用CFRP加固预裂钢筋混凝土梁的疲劳特征的研究
Fatigue behaviour of precracked RC beams strengthened with CFRP
摘要
Abstract
This paper presents the results of an experimental study on fatigue behaviour of precracked reinforced concrete (RC) beams strengthened with carbon sheet under 3 point bending test. The RC beams (200 mm×150 mm×700 mm), which were initially crack-damaged by pre-loading until the summation of the opening of two cracks equal to 0.7 mm, were subsequently strengthened by bonding carbon sheet on the tensile and the lateral surfaces. The bridging effect of carbon sheet reduces the cracks width and produces the redistribution of stresses between the steel rebars and the carbon sheets under static and fatigue loads. The results indicate that RC beams strengthened by carbon sheet are significantly improved in the respects of stiffness, ultimate structural capacity and ultimate fatigue life.关键词
疲劳/钢筋混凝土梁/碳纤维织物/加固Key words
fatigue/reinforced concrete beam/carbon sheet/strengthening分类
建筑与水利引用本文复制引用
吴泽仪,J.-L. Clément,C. Boulay,J.-L. Tailhan..用CFRP加固预裂钢筋混凝土梁的疲劳特征的研究[J].南昌工程学院学报,2007,26(3):7-14,8.基金项目
法国中央路桥实验室(Laboratoire Central des Ponts et Chausées-LCPC)和DRAST(MENRT)科研基金资助 （Laboratoire Central des Ponts et Chausées-LCPC）
This study was supported by DRAST (MENRT). The carbon sheet is the TFC(r)of Freyssinet International. （MENRT）
