Most of the application of steel structure is used in the construction of modern villas, but it has risen in recent years. This kind of steel structure is not very popular in the early stage, but it will be used more abroad.Construction industry — new requirements of steel production and use for steel structure.From the safety and performance analysis, high toughness and low yield ratio are required.In order to improve the processability, it is required to reduce the carbon equivalent and crack sensitivity coefficient, as well as have a certain anti lamellar tearing ability.Considering the durability and safety, corrosion resistance, weather resistance, fire resistance and seismic resistance are required.

HJSD steel structure, HJSD steel structure on the economic development of how

        　1.In order to promote green construction and building energy conservation and emission reduction, and promote the transformation and upgrading of the construction industry, the Ministry of housing and urban rural development approved some steel structure enterprises to carry out the housing general contracting pilot project. Its significance lies in broadening the market access and contracting scope of steel structure as the main project of industrial enterprises, and is conducive to the development of green integrated building market and the promotion of construction industrialization process.

　    　2.Taking the construction industrialization as the core, increasing the support for the production of building parts, and promoting the modernization of the construction industry, the accurate meaning is that the main force of the construction component is the steel structure building, and the steel structure is completed in the factory as far as possible, which has positive significance for promoting the application of steel structure in the construction field.

　　   3.The approval of “green building evaluation standard” as a national standard, implemented on January 1, marks the beginning of China’s green building era 2.0, its important significance is that steel structure is one of the two building systems required to be promoted in the “green building action plan” of the State Council, and also the main direction of energy conservation and emission reduction in the construction industry.

　   　4.In the 13th five year plan compilation plan of construction industry issued by the Ministry of housing and urban rural development, the steel structure industry and the construction industry will be compiled as an independent chapter. The steel structure will become an important pillar of the construction industry. We think that the promotion of steel structure is an important means to promote the transformation and upgrading of the construction industry and realize the modernization of the construction industry;It is also an important guarantee to improve the seismic performance of buildings and reduce the losses caused by earthquake disasters; it is an important measure to alleviate the steel overcapacity and form the strategic reserve of steel; it is an important grasp to promote the innovation of wall materials and promote the upgrading of traditional building materials industry.