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沈海高速公路温州段改扩建工程,有1/2以上路段拟以混凝土结构桥梁跨越,其中4座为跨海湾大桥。温州段跨海湾大桥所处的海洋环境具有一定的独特性,对混凝土结构有较强的腐蚀作用,因而需进行耐久性研究和设计,以确保工程百年寿命。根据温州地区沿海环境,对跨海湾大桥的混凝土结构耐久性设计进行了初步探讨,分析了引起结构腐蚀的主要因素,并提出了相关的防腐措施和设计建议。
Shenhai Expressway Wenzhou section of the expansion project, there are more than 1/2 sections to be crossed by the concrete structure of the bridge, of which 4 for the Bay Bridge. Wenzhou section of the Gulf Bridge where the marine environment has a certain unique nature of the concrete structure has a strong corrosive effect, which need to conduct durability research and design to ensure the life of a hundred years. According to the Wenzhou coastal environment, the design of the durability of concrete structures of the Bay Bridge is discussed. The main factors that cause the corrosion of the structures are analyzed, and the related anticorrosive measures and design suggestions are put forward.