In recent years, compared with brick concrete structure building, steel structure building has obvious advantages in environmental protection, energy saving, high efficiency and factory production.Steel structures have been used in the 325 meter high Diwang building in Shenzhen, the 421 meter high Jinmao Building in Pudong, Beijing and the Jingguang Center in Beijing. Beijing, Shanghai, Hebei and other provinces have begun to carry out steel structure residential pilot projects. Among them, Beijing Jinchen apartment has been listed as a demonstration project of residential steel structure system of the Ministry of construction.It is expected that the 21st century will be the century of metal structure, and the steel structure will become the backbone of the new building era.Human beings began to use pig iron since the 1970s, and used wrought iron to build bridges and houses in the early 19th century. The development history of steel structure is longer than that of reinforced concrete structure, and its vitality is also more and more strong.In the United States, more than 70% of low rise buildings, such as non residential buildings with two floors or less, are made of building metal products.Among the 101 super high-rise buildings completed so far in the world, there are 16 reinforced concrete structures, 59 pure steel structures and 27 steel-concrete hybrid structures. It can be seen that the development of steel structures will promote the rapid development of construction, metallurgy, machinery, automobile, agriculture, petroleum, commerce and transportation. 

 Steel structure trend in recent years, the superiority of steel structure is more and more recognized by people, which is a common building structure system.The production mode of China’s light steel structure construction industry is experiencing a revolution from “building houses” to “manufacturing houses”. The production characteristics of light steel structure building system industrialization provide an effective carrier for this revolution.The government departments are also vigorously promoting the development of the construction industry to industrialization and industrialization. The light steel structure building system has been listed as the national engineering demonstration building system by the Ministry of construction.Steel structure building system is accepted by more and more people because of its highly industrialized production mode, high-efficiency on-site installation level and excellent performance.