General provisions for rust prevention and painting of steel structures

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1. The rust prevention and coating design for steel structures shall comply with the relevant provisions of the \"Code for Corrosion Prevention Design of Industrial Buildings\" GB500046 and the \"Technical Specifications for Coating of Steel Structure Piping\" YB/T9256； In the design of steel structure projects, a rust prevention coating design must be included. 2. The rust prevention and coating design for steel structures should take into account factors such as the importance of the structure, environmental erosion conditions, maintenance conditions and service life, as well as construction conditions and project costs. It is necessary to appropriately select or determine the initial rust grade on the steel surface, the methods and grades of rust removal (\"Grade of Rust on Steel Surfaces before Painting and Painting Grades\" GB8923), the requirements for coatings and painting, as well as the quality inspection requirements for painting work (\"Code for Acceptance of Construction Quality of Steel Structure Projects\" GB50205).