对钢筋腐蚀后的混凝土管道承载力的研究

Study on the Bearing Capacity of the Concrete Pipes Whose Steel Bars have Corroded Away

钢筋锈蚀是导致混凝土建 (构 )筑物耐久性降低的主要原因之一 ,尤其是混凝土管道 ,其破坏多缘于钢筋的锈蚀。根据钢筋锈蚀以后力学性能的变化 ,推导出混凝土管道钢筋腐蚀后承载力的计算公式。

Steel corrosion is the chief reason for the weakening durability of the concrete structure. The damage to the concrete pipe is mainly due to the corrosion of the steel. On the basis of the variation of the corroded steel bars' mechanical property, the calculation formula of the bearing capacity of the concrete pipes is put forward in this paper.