Stochastic durability analysis of pre-stressed concrete structure under marine environment

Due to the penetration of chloride ions, the reinforcement in the pre-stressed concrete structures under marine environment will corroded, which can reduce the durability and safety of the structure. Based on the service features of pre-stressed concrete structure, the structural durability failure criteria of pre-stressed concrete structure under marine environment is suggested, and the penetration mechanism of chloride ions in the structural concrete is analysis. Taken 70m pre-stressed box girder beam as an example, the stochastic durability design of pre-stressed concrete structure under marine environment is analysis, which will provide theory method and foundation for the durability design, construction and quality control of similar project.