RESEARCH ON FATIGUE BEHAVIOR OF CONCRETE BEAMS WITH SLIGHT CORROSION REINFORCEMENT

摘要：

It is important to evaluate the behavior of reinforced concrete structures with slightcorrosion. The fatigue experiment of five concrete beams with slight corrosion reinforcementhas been made. The influence of weight loss ratio of reinforcement and stress ratio on thedeflection of span-centre,maximal crack width and fatigue life of concrete beams has beeninvestigated. It is found that the central deflection of slight corroded beams is lower than thatof the non-corroded beams,the maximal crack width of corroded beam decrease with theincrease of stress ratio,and pit corrosion on the surface of reinforcement and cracking inconcrete promote the fatigue fracture of reinforcement and the exceeding of crack width ofconcrete. The results are helpful to the research and assessment of concrete beams with slightcorrosion reinforcement.

关键词： concrete beam fatigue behavior weight loss ratio of reinforcement stress ratio

作者: Wu Jin Huang Jie

作者单位: Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,PR China

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 892-895

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）