Long-term Anti-corrosion Technology of Bridge Steel Structure and its Application in Xiamen Second East Passage
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摘要: 介绍了国内外长期效防腐技术现状:一是较为成熟的以喷涂金属涂层作为底漆的复合涂层体系,二是以富锌底漆为配套的重防腐涂层体系。列举了3种典型桥梁钢结构大气区防腐涂层配套试验室测试差异。根据厦门第二东通道所处的环境特点,结合国内外桥梁钢结构防腐技术,为项目提出可行的钢箱梁外表面防腐蚀技术方案为"环氧富锌底漆-环氧中间漆-氟碳面漆"防腐涂层。Abstract: Here were introduced the currently situation of long-term anti-corrosion technologies in China and abroad:one was a relatively mature composite coating system with sprayed metal coating as a primer, and the other was a heavy-duty anti-corrosion coating system with zinc-rich primer as a supporting system. The differences of anti-corrosion performances of 3 typical anticorrosion coatings in atmospheric area of bridge steel structure were listed. According to the environmental characteristics of Xiamen Second East Passage, and combined with anti-corrosion technologies of domestic and foreign bridge steel structures, feasible anti-corrosion coating of epoxy zinc-rich primer-epoxy intermediate paint-fluorocarbon top coat was proposed for the outer surface of steel box girder.
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Key words:
- steel structure /
- anti-corrosion technology /
- Xiamen Second East Passage
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[1] 张鸣功,张劲文,高星林,等.港珠澳大桥桥梁钢结构制造关键技术及质量控制[J].广东公路交通,2015,41(3):14-17. [2] 苏权科,谢红兵.港珠澳大桥钢结构桥梁建设综述[J].中国公路学报,2016,29(12):1-9.
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