钢筋混凝土桥梁中钢筋锈蚀是不可避免的,钢筋锈胀裂缝是钢筋锈蚀的直观反映,综述了钢筋锈蚀量预测的研究方法以及已有钢筋锈蚀量预测模型。通过开展模拟实验,比较分析实验结果与已有模型结果得出:在材料、构造信息已知的情况下,以裂缝宽度值作为结构钢筋锈蚀量评定参数是可行的,出现可见锈胀裂缝时钢筋锈蚀量在2%左右。并给出了钢筋锈蚀量预测研究的建议。 Corrosion of rebar in reinforced concrete bridges is unavoidable. Corrosion cracking of rebar is an intuitive reflection of rebar corrosion. The research methods of prediction of rebar corrosion and the prediction models of rebar corrosion have been summarized. By carrying out simulation experiments and comparing the experimental results with those of the existing models, it is concluded that if the material and structural information are known, it is feasible to use the crack width value as the evaluation parameter of the structural steel corrosion amount, Corrosion in about 2%. The prediction of the corrosion of steel bar is also given.