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钢结构的防腐蚀是钢结构设计、施工、使用中必须解决的重要问题,它牵涉到钢结构的耐久性、造价、维护费用、使用性能等诸方面。钢结构的防腐方法有四类。(1)钢材本身防腐蚀,即采用具有抗腐蚀能力的耐候钢。(2)长效防腐蚀方法,即采用热镀锌、热喷铝(锌)复合涂层进行钢材表面处理,使钢结构的防腐蚀年限达到20～30年,甚
Anticorrosion of steel structures is an important issue that must be solved in the design, construction and use of steel structures. It involves the durability, cost, maintenance cost and serviceability of steel structures. There are four types of anticorrosion methods for steel structures. (1) steel itself anti-corrosion, that is, the use of corrosion-resistant weathering steel. (2) long-term anti-corrosion method, that is, using hot-dip galvanizing, thermal spray aluminum (zinc) composite coating for steel surface treatment, the anti-corrosion of steel structures reached 20 to 30 years,