"A new building system can open up the industry line between construction, metallurgy, machinery and equipment manufacturing, new building materials and disaster prevention and reduction industries, become a national strategic resource reserve, and integrate innovation into a strategic emerging industry." Steel structure houses are conducive to economic transformation and upgrading and sustainable development, and need to accelerate cultivation and development." This is a few years ago, the industry is generally optimistic about the steel structure building system.
Steel structure residential general system for residential use, with unique advantages, including: first, light weight. Steel structure housing can reduce the building weight of about 30%-25%, which is conducive to the construction of high-rise buildings, especially in places with low geological carrying capacity and high seismic intensity, and its comprehensive economic benefits are better than ordinary residential building systems. Secondly, the layout is flexible, the room is large, and the room type is rich, which can increase the construction area by 3%-25% to 5%-25%. Due to its full flexibility, modifiability and safety, it is conducive to meeting the needs of modern life. Third, it is easier to achieve industrialization, standardization, mass production, and improve the structure of the labor week.
Steel structure steel is facing the new challenges of the rapid development of China's steel structure industry, and the increasing amount of steel used in steel structure has also accelerated the production and research and development of steel used in steel structure. However, compared with developed countries, there are still many gaps:
The proportion of high-performance steel used in steel structures needs to be improved. In addition to the advantages of light weight, high strength, excellent material properties, high industrialization of production and installation, suitable disassembly, and good durability, building steel structure also has the characteristics of saving resources, reducing carbon emissions, recycling and so on. Therefore, the steel used in the steel structure also needs to be light in weight, high in strength and corrosion resistance. However, at present, some steel structure projects still have the defects of "stupid, heavy and large", and high-grade structural steel is needed to change the status quo. For example, carbon structural steel (Q235) can be replaced by low-alloy high-strength structural steel.
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