Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
The steel materials used in space frame processing have also put forward many requirements in many buildings.
Space frame houses are a new type of energy-saving and environmentally-friendly building system, known as “green buildings”. Because of its light weight, high strength, good seismic performance, and the advantages of recycling and comprehensive use, it meets the requirements of the sustainable and healthy development of the national economy, so it has a huge space for development.
In recent years, as the state has strengthened its policy guidance, the development of the mesh frame has shown a good situation of expanding application fields and a surge in usage. At the same time, the domestic steel mills represented by Baosteel have developed a number of cost-effective structural steel through long-term unremitting efforts, which provides favorable conditions for the emergence of a large number of excellent domestic space frame structures.
At present, more and more high-rise buildings, large factories, large-span space frame structures, transportation energy projects and residential buildings are using space frames widely and in large quantities as the preferred material for building support members. The domestic space frame production surged from 8.5 million tons in 2002 to 26 million tons last year.
The space frame products are mainly divided into heavy, large components and light steel, space frames, and color plates. The proportion of steel products used in space frame products is about 60% of medium and heavy plates, about 15% of hot-rolled H-beams, 9% of pipes, and about 10% of other color-coated plates and cold-formed steels. In the field of using space frame materials, factory buildings accounted for 35%, public buildings and bridges accounted for 10%, multi-high-rise residential buildings accounted for 25%, tower masts accounted for 6%, and non-standard and other hovering around 15%.
Steel production enterprises should seize the country’s recent development priorities and hot spots, and produce space frame materials that are urgently needed and applicable to the market.At present, domestic energy construction infrastructure is accelerating, including steel for nuclear power plants, steel for wind power generation, steel for boiler steel frames, etc., showing long-term and large demand; the proportion of steel for bridges in traffic engineering has increased, and the use of space frame for railway and highway bridges has become a development trend; the amount of steel used in municipal construction such as subways, light rails, urban interchanges and elevated highways will also continue to increase.
In the context of the national promotion of energy conservation and recyclable materials, space frame residential buildings will show a geometric development trend.
Among them, steel plates, hot-rolled H-beams, steel pipes, and cold-formed steels are the main products, and products with steel strengths of Q345 and Q235 grades are the first choice of users.
