混凝土结构耐久性预估研究进展

Research Progress in the Durability Evaluation and Remaining Service Life Prediction of Concrete Structures

混凝土结构耐久性问题日益重要,在总结结构耐久性评估和剩余寿命预测方法基础上,提出了混凝土结构耐久性预估需要解决的一些基本问题,包括失效准则、专家数据库、耐久性指数和全寿命周期分析,认为混凝土结构耐久性研究应充分考虑材料发展,并且混凝土材料的渗透模型或Cl-扩散模型是关键问题,强调急需建立耐久性设计方法。

The durability of concrete structures becomes more and more important. Based on the summary of study on the durability evaluation and remaining serve life prediction of concrete structure, several basic problems in this domain are brought forth, including failure criteria, expert database, durability index and the full life-cycle analy- sis. It is suggested that concrete structure durability should be combined with the material performance, and the pene- tration model of concrete material or Cl^- diffusion model are the key issue. The durability design of concrete structures must be established as soon as possible.