الوصف

Give priority to with steel structure, is one of the main building structure types. Steel is characterized by high strength, light weight, good integral rigidity and deformation ability, is used for construction of large span and super high, super-heavy buildings is suitable; Homogeneous and isotropic materials is good, is a ideal elastic body, the most in line with the general engineering mechanics basic assumption; Material plasticity and toughness, good can have large deformation, can bear dynamic load; Short construction period; Its high degree of industrialization, high mechanization degree of specialization of production can be performed. Steel structure in the future should study of high strength steel, greatly improve the yield point strength; In addition to new varieties of rolling steel, such as the h-beam steel) (also called wide flange and t-shaped steel and pressed steel plate so as to adapt to the needs of the long-span structure and high-rise building.

There are no thermal bridge light steel structure system, building itself is not energy efficient, this technology use clever special fittings to solve the construction problems of hot and cold bridge; Small truss structure make the cable from the wall and fluctuation conduit crossing, construction decoration is convenient; So energy conservation is the only one in the world by cold bending thin-wall steel building layer 7 residential building system.

In our country, the steel structure industry marketization degree is higher, the market competition is more intense. At present, China's steel structure enterprise in ********0 or so. According to the China steel association statistics, up to now, has steel structure manufacture enterprise qualification units, a total of **8, but most for yearly produces ****0 tons the following small and medium-sized enterprises, only more than *0 annual output of more than *****0 enterprises. Most of the enterprise production on a smaller scale, industry concentration is not high.