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钢筋混凝土结构耐久性问题是一个十分重要而亟待解决的问题。对钢筋混凝土结构耐久性的研究十分必要和迫切。首先根据现有钢筋锈蚀量预测模型,以锈胀开裂时的钢筋锈蚀量为结构抗力,以钢筋锈蚀深度为荷载效应,建立钢筋混凝土构件正常使用极限状态的状态方程,由此得到钢筋混凝土结构耐久性的概率评价模型。然后结合实例对某一钢筋混凝土结构进行了耐久性及参数敏感性分析,验证方法的有效性。
The durability of reinforced concrete structure is a very important and urgent problem to be solved. The study of the durability of reinforced concrete structures is very necessary and urgent. First of all, based on the prediction model of the existing steel bar corrosion, the corrosion resistance of the steel bar when the cracking is ruptured is used as the structural resistance, and the corrosion depth of the steel bar is taken as the loading effect to establish the state equation of the ultimate state of the reinforced concrete structure. Sex Probability Evaluation Model. Then, the durability and parameter sensitivity of a reinforced concrete structure are analyzed with examples to verify the effectiveness of the method.