Steel structure is a structure made of steel and is one of the main types of building structure. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of shaped steel and steel plates, and adopts silaneization, pure manganese phosphating, washing and drying, galvanized and other rust removal and anti-rust processes. Welds, bolts, or rivets are usually used to connect components or components. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings and other fields. Steel structures are easy to rust. Generally, steel structures should be rusted, galvanized or painted, and maintained regularly.