标题：Cross-section strain analysis of reinforced concrete beam subjected to corrosion fatigue
作者：Wang, Haichao ;He, Shiqin ;Gong, Jinxin
作者机构：[Wang, Haichao ] Key Laboratory of Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266510, China;[Gong, Jinxin 更多
来源：Jianzhu Jiegou Xuebao/Journal of Building Structures
摘要：The experiments of reinforced concrete beams subjected to corrosion fatigue and the control beams were carried out. Based on the measured values of dynamic reinforcement strain and concrete strain in the cross-section of the reinforced concrete beam subjected to cycling loading, the strain developing process was analyzed. The results show that the increasing rate of the reinforcement tensile strain was accelerated in corrosion environment due to corrosion medium effects and the increasing process was a continuous process. The strain development is similar in the different environment, whereas the developing rate is different in various erosion environment. The increasing rate of strain is controlled by the level of fatigue loading in the same corrosion environment and is determined by the intensity of corrosion effects in the same fatigue loading level. The strain development process of the cross-section is also divided into three stages, the initial stage, the development stage and the failure stage. The results may provide the reference for the durability design of reinforced concrete members subjected to corrosion fatigue.