Steel structure is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates, and adopts silanization, pure manganese phosphating, washing and drying, galvanizing and other rust and antirust processes. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large-scale factories, stadiums, super high-rise buildings and other fields. Steel structures are easy to rust. Generally, steel structures need to be derusted, galvanized or painted, and regularly maintained.