基于软件Life-365的氯离子环境下混凝土材料耐久性设计

Durability design of concrete materials in chloride environment based on Life-365 software

根据相关规范总结氯离子破坏混凝土耐久性机理和港工结构耐久性设计要求。结合国内某海港工程当地的自然条件,使用Life-365软件计算混凝土结构设计寿命。计算结果表明,基于本模型计算的设计寿命满足50a的使用要求。同时,对该计算结果进行了敏感性分析,找出影响海港工程耐久性的敏感因素。为我国其他港工建筑,尤其是高氯盐环境下混凝土耐久性设计提供参考和借鉴。

According to relevant codes,the durability mechanism of concrete damaged by chloride ion and the durability design contents of port structures are summarized.A port project is taken as an example,based on the natural condition,Life-365 software is used to calculate the design life of concrete structure.The calculation results show that the design life of the concrete based on the model can meet the requirement of the code,which is 50 years.In the meantime,the sensitivity analysis is carried out to find out the factors affecting the durability of port structure.It provides a reference for the durability design of other port project in China,especially in high chloride environment.