Hainan steel structure: the source of the steel structure and development trend in the future
 
 
 
 
Hainan steel structure: steel structure engineering in steel structure, is one of the main building structure types. Steel structure is the modern building engineering is one of the general structure form.
China is the earliest country made of iron bearing structure, the long era of qin shihuang (246-219 BC) had made simple iron bearing structure, and the west in the 17th century began to use the metal bearing structure. The 3 ~ 6 century industrious and intelligent Chinese people with iron chains to build cable suspension bridge, and then built the famous sichuan LuDing dadu river chain bridge, including yuanjiang bridge in yunnan, guizhou panjiang bridge and so on, are made of iron body bearing structure, for example. While early China has outstanding achievements in the iron structure, but because of the constraints of more than 2000 years of feudalism, science is not developed, has remained in iron level of the building. Until the end of the 19th century, China began to use modern steel structure. After the founding of new China, the use of steel structure had the very big development, both on the quantity or quality more than the past.
Steel features high strength, light weight, good integral rigidity and deformation ability is strong, is used for construction of large span and super high, super-heavy buildings is especially suitable for; 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, high degree of industrialization, high mechanization degree of specialization of production can be performed. Steel structure high strength steel should be further investigated in the future, in order to greatly improve the yield point strength; In addition, new varieties of rolling steel, like h-beam steel) (also called wide flange, the t-shaped steel and pressed steel plate, etc., to adapt to the needs of the long-span structure and high-rise building. Steel structure also belongs to the green environmental protection building materials, the use of most of the material has the characteristics of high recovery, and steel structure with a variety of integrated use of composite materials, but also has the earthquake, wind, fire prevention, sound insulation, heat insulation and other excellent comprehensive properties of building products.
From the steel structure in different types of transaction market situation analysis, in the category of light steel structure, because of the relatively low barriers to entry, participate in the competition of small and medium-sized companies, regionalization of fierce competition pattern. Competition is embodied in the main points of the factory production scale advantage.
In large span space steel structure, heavy steel structure, bridge steel structure, large boiler steel, offshore platform steel structure and other high-end use category, because of the high steel structure engineering technology, production equipment is difficult, capital, talent, product quality and high accuracy requirement, production company is relatively small, and therefore higher barriers to entry. According to the China steel association statistics, up to now, the national steel structure production company owns super talent company seiko steel structure, southeast, hangxiao, huning steel machine, hongxing road steel structure, etc., 61, relatively moderate competition environment, market development prospects, is expected to become the key points of competition in the steel structure engineering in the future.
From regional distribution, large steel structure company focused on Shanghai, zhejiang, anhui, shandong, guangdong, Beijing and other places, coastal and central city steel structure manufacturing one of the leading enterprises in the national development. According to statistics, in 2012, steel structure production among the top five provinces and cities are: zhejiang 2.03 million tons, 1.82 million tons of Shanghai, anhui 1.47 million tons, 1.19 million tons of shandong, jiangsu, 910000 tons, total more than one-third of the national steel structure production.
From the point of professional competition situation in the future, China steel structure company quantity, scale and influential companies but not much, profession concentration degree is not high, has the professional integration of talent, less energy saving low consumption of large steel structure production company. "Twelfth five-year" period, according to the national industrial policy adjustment, some small and medium-sized companies will be phased out in competition, some have technology advantage, scale advantage, innovation advantage, brand advantage and customer advantage, with integration of design and production equipment management strength, in the international market has a certain competition force of the company will be in the competition by exploiting market, expand production capacity, technology upgrade gradually become bigger and stronger, professional concentration will continue to improve in the future.
Advantage of international steel structure company mainly choose "design, production and device" integration business transaction mode. Now, many domestic steel structure company, subject to the limit of the technical talent, how to choose the management mode of processing components and devices, and the vast number of small and medium-sized companies is mainly processing components, only profit ability cannot be compared with the professional leading company.
Excellent steel structure company must have a team of skillful device, is perfect for tight construction schedule, construction plan, skilled installation technology, and matches them with advanced devices, which provide guarantee for the construction of high quality engineering.
As steel structure market competition becomes more intense, some high-end goods produced in steel structure steel structure company gradually on the basis of the extended transaction chain before and after the end, choose the international mainstream "design, production and device" integration of the business transaction mode, promote competition force in the design and the link, so as to obtain the higher than the average level of gross margin profession.
With the rise of central China, the implementation of the western development strategy, the central and western regions into gradually increase, for steel structure company provide a broad market space, south, southwest, northwest gradually become the emerging area of the steel structure career development. Became evident with the advantages of the central and western regions in the future, some have competition advantage in the eastern coastal area, at the same time in the Midwest in advance the layout of the company will take the lead in the regional market competition advantage.
The point in the future development of China's steel structure to in offshore oil engineering equipment, steel structure residence, steel structure bridge, such as three categories, such as the country's 590000 highway Bridges, for example, now steel bridge is less than 1%, and steel bridge in Japan accounted for 41%, the United States accounted for 33%, therefore, the market demand, the industrial development of China's steel bridge also has the very big disparity with the developed countries. The national development and reform commission, ministry of industry and the ministry of science and technology is also working on relevant strategic new industry and planning objectives, with the international advanced level, independent innovation ability is strong, the international competition strength and can occupy more market industry, will be included in the planning and support, and supporting policies. Opportunities and challenges, China steel structure industry scale, up the steps, the last ten years of development is very important.