Steel sheeting is widely used because of its light weight, high strength,

beautiful appearance, convenient installation, etc., abroad not only hand industrial plants, and many civil construction, building envelope to do with it, such as roof and wall panels.

The so-called skin effect refers to the pressure plate in its plane shear capacity, may be called by diaphragm action. Such as steel sheeting and components for a reliable connection, this skin effect of the building envelope can also become an important part of the structure, the entire structural system, connected with compression, bending pressure component provides continuous side to support, and thus improve the bearing capacity of the rigidity and stability of these components. The design specifications of the United States to introduce the method of the blindfolded supporting design. Our "cold-formed steel structural design specifications by force skins are under development.

At present, China's steel industry, there are still many problems, including:

The steel industry is in line with energy saving and environmentally friendly, sustainable development of industry awareness has to be raised. In recent years, Japan, Canada, the United Kingdom government and research institutions published a lot of articles devoted to the development of the steel structure housing the advantages and measures used for reference.

2 design concepts can not meet the needs of the market. The super high-rise buildings and special requirements mostly by foreign architects program successful, indeed unique in their planning, environmental, architectural and functional. Connection node is too complex, consume too much steel and bring more problems to the production and installation, but also increases the cost of the project.

3 parts of steel structure enterprises blindly launched, the herd instinct, leading to overcapacity and waste a lot of resources.

Market run is not standardized, the bidding companies compete to lower prices and steel prices, caused the loss of processing and installation enterprises.

Steel research and development funds, standards and specifications revision cycle is too long; standard and application-specific procedures missing items, lag; steel standards and engineering design, construction specifications, procedures convergence is not on.

6 steel structure processing plants and the construction and installation of business equipment, computer management, labor productivity need to be further improved.

7 steel structure professional and technical personnel, the lack of skilled workers, especially in the SMEs shortages, technical quality and management do not adapt to the needs of production.

8 of the role and function of the industry associations are far from being in place. Particularly in the specification and to guide the market order, service enterprises, develop the steel market, the standard preparation of amendments and the training of professionals, has yet to be perfected.

The next period of time, the steel structure in several areas of China will increase, will also speed up the construction of thermal power plants, the main plant and the the boiler steel frame the amount of steel plant steel (including nuclear power plants will increase wind power generation steel, etc.); bridge traffic engineering will increase use of steel railway bridges, roads and bridges in recent years the use of steel into the development trend, the Beijing-Shanghai high-speed, across the sea, cross-river bridge with steel bridge, highway guardrail, toll station, the amount of the steel structure of the traffic signs are also many. There are airports, train stations, new and expansion; municipal building in the amount of steel structures will increase subway and light rail projects, urban overpasses, viaducts, environmental engineering, urban public facilities and temporary housing and so more and more use steel structure. Especially in Beijing, Shanghai, Tianjin, Chongqing, and the major capital cities, medium-sized cities in economically developed, steel consumption will be significantly increased.

Such as Beijing for viaduct steel over 20,000 tons annually. Beijing Olympic Games, Shanghai World Expo, the Asian Games in Guangzhou and Shenzhen World Youth Council supporting facilities with a large number of steel building; steel structure housing a substantial increase. The state advocates the construction of land-efficient residential, the steel residential design specification and supporting technology, basic materials have. At present, China only several million square meters of residential steel developed countries has reached 40% to 50%. China's annual completion of 600 million m2 of urban residential construction 5% is made from steel, multi-layer, high-rise buildings per square meter on average 50kg steel design, the amount of steel will reach 1.5 million tons per year. The figures have not been rural buildings with steel structures included in the statistics; China's steel prices lower than international prices, low labor costs, good quality steel production, strong competitiveness in the international construction market, foreign enterprises in the past few years procurement of steel structure in China has increased, and the many Steel Factory also undertake overseas orders. (End)