海水环境下的桥梁设计  

Bridge Design in Seawater Environment

作　　者：张朝旭[1] 

机构地区：[1]辽宁省交通科学研究院,沈阳110015

出　　处：《北方交通》2008年第1期62-65,共4页Northern Communications

摘　　要：处于海水环境中的混凝土桥梁结构,由于氯盐环境的影响导致结构内的钢筋极易锈蚀,进而大幅度降低了桥梁的使用寿命,对结构的安全也带来了危害。简要分析了海水环境下桥梁结构腐蚀的原因,并就海水环境下的桥梁结构防腐耐久性技术措施从结构形式、构造及材料选择等几个方面进行分析论述。最后,针对北方海洋环境下桥梁的设计和施工,提出具体的提高桥梁抗腐蚀性的技术措施。Concrete bridge struction being in seawater environment can lead to the reinforeement msiue structure is extremely easy to become corrosion, further reduces by big margin the service life of bridge and brings harm to structure safety, that are caused by impact of chrorate. The paper briefly analyzes causes for bridge structure corrosion in seawater envoironment, analyzes and discusses the measures for anti -corronsion and durability increasing of bridge structure in feawater envoirement from structure form, texture and selection of materials. Finally, aiming at design and construction of bridge in northern marine environment, it presents specific technical measures for enhancement of bridge anticorrossion as well.

关 键 词：钝化膜 耐久性 钢筋锈蚀 高性能混凝土 掺和剂 

分 类 号：U422.53[交通运输工程—道路与铁道工程]