Steel structure industry Our policy opens up industrial space, and prefabricated steel structure buildings are in the ascendant
Steel structure industry Represents the new development mode of the future building structure
Green building technology is an important development trend of green building. According to the structural system of prefabricated buildings, prefabricated buildings can be divided into prefabricated concrete structures, steel structures and wood structures. Steel structure refers to beam steel, steel column, steel truss and other components composed of section steel and steel plate. The structure is usually connected by welds, bolts or rivets, and rust removal and rust prevention processes such as silicification, pure manganese phosphating, water washing and drying, and galvanizing are adopted. The steel structure has the advantages of high strength, light weight, good overall stiffness, and strong deformation ability. It is especially suitable for the construction of long-span, ultra-high, and super heavy buildings, including large industrial plants, buildings, office buildings, roads, railway bridges, offshore oil drilling platforms, etc., and is expected to become the mainstream structure of future prefabricated buildings. According to the classification of building uses, steel structures can be divided into high-rise steel structures, plate and shell steel structures, industrial plant steel structures and light steel structures. Among them, light steel structure has developed rapidly in China and is widely used in shopping malls, residential areas and other fields.
China has the material and technical basis for the development of steel structures. Since 1996, China's crude steel output exceeded 100 million tons for the first time, China's crude steel output has continued to increase. The main properties of domestic carbon steel, alloy steel and H-shaped steel meet the requirements of steel structure construction. At the same time, with the development of domestic logistics, the transportation cost of steel structures has been reduced, and the dilution of enterprise profits from long-distance transportation has been overcome, which provides a material basis for the development of steel structures in China. From the perspective of technical basis of steel structure development, industrial standards such as ordinary steel structure, building steel structure, high-rise civil building steel structure, steel structure welding and high-strength bolt connection, steel and concrete combination, concrete-filled steel tube structure and steel reinforced concrete structure, as well as relevant steel structure specifications, have been issued, It provides necessary technical basis for the application of building steel structure system.
