【摘要】 钢筋锈蚀的本质是一种电化学反应，受诸多因素影响，其中氯离子侵蚀会引起钢筋的坑蚀。坑蚀的发展会导致应力集中，从而加剧锈蚀钢筋力学性能劣化，但钢筋质量损失不能准确描述坑蚀特征。为了准确描述锈蚀钢筋的形貌特征和性能劣化规律，不同学者建立了锈蚀坑分布的概率模型、锈蚀钢筋性能劣化模型，通过上述模型能进一步对发生锈蚀的RC构件的性能劣化进行预测。不同学者之间的模型存在差异，说明了钢筋锈蚀问题的复杂性，同时也指出建立考虑时空演变的广义锈蚀钢筋本构方程是值得关注的研究方向之一。坑蚀对锈蚀钢筋疲劳性能的影响同样不容忽视，通过对锈蚀钢筋疲劳性能研究现状的分析，阐述了坑蚀对疲劳性能的影响，总结了钢筋疲劳寿命预测方法。更多还原

【Abstract】 The essential nature of rebar corrosion is an electrochemical reaction,which is influenced by many factors,and chloride ion erosion tends to cause pitted corrosion of rebar.Pit erosion can contribute to stress concentration phenomena,aggravating the performance deterioration of rusted reinforcement.However,mass loss cannot accurately characterize pit erosion.Probabilistic models of rust pit distribution and performance deterioration models of rusted support have been established by different scholars to accurately describe the morphological characteristics and performance deterioration patterns of rusted reinforcement.These models can further predict the performance degradation of the rusted RC members.The differences in the models established by different scholars illustrate the complexity of the corrosion problem of reinforcing bars and point out that setting generalized rusted reinforcing bar principal structure equations considering spatial and temporal evolution is one of the subsequent research directions.The fatigue performance of rusted reinforcement is also affected by pit corrosion.Through the analysis of the current research status of fatigue performance of rusted support,the law of the effect of pit corrosion on fatigue performance is described,and the fatigue life prediction method of reinforcement is summarized.更多还原