As the service life increases,the restoration and renewal of the anti-corrosion ability of steel structures in urban bridges is an important task in bridge maintenance.This article studies the steel structure of urban cross river bridges,which has a high-performance aluminum zinc primer.The intermediate and topcoat layers in the composite coating are aged.Under extremely high environmental requirements,after analysis and experimental verification,the op-timal maintenance coating scheme is obtained.It not only protects the original aluminum zinc primer,but also restores the anti-corrosion performance of bridge steel structures.
关键词
铝锌底涂层/市区跨江桥梁钢结构/维修涂装/施工工艺
Key words
aluminum zinc base coating/steel structures for urban cross river bridges/repair painting/con-struction technology
维普
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