The development model of steel structure building

Energy saving, environmental protection and industrialization. In the later years of the 20th century, my country’s urban housing construction developed rapidly, with an annual built-up area of 440 million square meters and a total output value of 600 billion yuan (about 9% of the GDP). The housing industry has become a new growth point of the national economy in the new century. Realize the modernization of the housing industry, and solve the problems of low industrialization, low componentization, low-grade housing materials, short service life, high energy consumption of solid clay bricks, and poor environmental protection in the current housing construction. It has been included as an urgent problem in the new century. my country's construction industry requires the entire industry to study new systems for the application of steel structures in various types of buildings, expand its application scope, and develop multi-layer steel structures.

The pilot project of adopting steel structure in multi-storey housing and small high-rise housing in China started in Tianjin. Tianjin uses three different structures, different wall materials, and different construction methods. Start a pilot project with a scale of more than 200,000 square meters. One is the use of square steel tube concrete columns with large-span structure; the second is the use of steel truss structure; the third is the use of steel tube concrete structure. The steel consumption per square meter of the three structures is less than that of reinforced concrete structures. In Qingdao, Shanghai and Xinjiang, housing projects in certain areas are listed as pilot projects. Since my country's "steel house" has just begun, many buildings cannot be mass-produced. Therefore, steel structures are more expensive than concrete structures. According to calculations by the construction unit of Beijing Jinchen Community, although the price of steel structure is still high, the overall cost is not high due to the short construction period, low energy consumption, high utilization rate, and improved quality. This is a demonstration project of steel structure housing in Beijing. Therefore, the supplier provides steel structure components at a good price, and the total cost is similar to that of concrete structures. Fabricated steel structure