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The Origins of the steel structure and future trends

Guangzhou Steel News: The Origins of the steel structure and future trends

    Guangzhou Steel News: Steel construction project is constructed mainly of steel production, is one of the main building construction types. Steel construction is one of the more modern building projects in the form of a conventional structure.
China was the first country with a load-bearing structure of the iron produced, much in the era of Qin Shi Huang (246 BC to 219 years) would have been made of iron load-bearing structure is simple, and the Western countries in the 17th century began to use metal load-bearing structure. 3-6 century AD, clever and industrious Chinese people on building cable suspension bridge with chains, and later built the famous chain bridge in Sichuan Luding Dadu River, Yunnan Yuan River Bridge, Guizhou plate Jiangqiao, are iron body Examples of load-bearing structure. Although China has a remarkable record of early iron construction aspect, but because of the 2,000 years of feudal bondage, science developed, remained on the level of iron in the building. Until the 19th century, China began to adopt modern steel structure. After the founding of New China, the application of the steel structure has been greatly developed, both in quantity and quality, or far more than in the past.
Characteristics of the steel is a high strength, light weight, good rigidity, deformation ability, for the construction of large-span and ultra-high, super-heavy buildings is particularly suitable; homogeneous and isotropic material is good, it is the ideal elastomer, The most fit usually engineering mechanics basic assumptions; material ductility, toughness, and can have a large deformation, can well withstand dynamic loads; construction period is short, high degree of industrialization, can be high degree of mechanization of specialized production. Steel structure in the future should be in-depth study of high-strength steels to significantly improve its yield point strength; in addition, new varieties of steel to be rolled, such as H-beam (also known as wide-flange steel), T-shaped steel and the pressure plate, so as to habits need to construct large-span and ultra-high-rise buildings. Steel construction also an environmentally friendly green building materials, most of which use materials having a high recovery characteristics, and the steel structure and the integrated use of a variety of composite materials, but also has seismic, wind, good overall performance fire, noise, insulation and other The building products.
Steel structure from different types of business market analysis, in light steel construction category, since the barriers to entry are relatively low, many small and medium sized companies to compete, showing the pattern of regional competition. Highlights of competition is reflected in factory production scale advantages.
In large-span space steel structure, top heavy steel structure, bridge steel structure, large boiler steel, steel structure and other high-end offshore platform application areas, due to the high content of steel construction engineering technology, production equipment difficult, funding, qualification, product quality and high precision manufacturing companies is relatively small, and therefore high barriers to entry. According to the China Iron and Steel Association statistics structure, so far, the national company has a production company super qualified steel structure has Seiko Steel, Southeast grid, Hangxiao, Huning Steel, Hung Road Steel, etc. 61, the competitive environment relative ease , broad market prospects, are expected in the future will become a steel structure engineering competition points.
From the regional distribution point of view, larger companies are mostly concentrated in the steel structure Shanghai, Zhejiang, Anhui, Shandong, Guangdong, Beijing and other places, the city of steel structure production industry development of coastal and central forefront of the country. According to statistics, in 2012 the steel structure production ranked the top five cities are: Zhejiang 2.03 million tons, 1.82 million tons Shanghai, Anhui, 1.47 million tons, 1.19 million tons in Shandong, Jiangsu 910,000 tons, the total output of the country's total steel structure 1/3.
Future competition from the professional point of view, China's steel structure are quite a few companies, but on the scale, no more influential companies, occupational concentration is not high, with occupational integration capabilities, less energy-efficient and low consumption of large steel structure production company . "1025" period, the national industrial policy adjustments, some small companies will be phased out in the competition, a number have technical advantages, scale advantages, the advantages of independent innovation, brand and customer benefits, with planned production device integrated operational strength The company in the international market have a certain competitiveness in the competition by opening up markets, expand production capacity, technology upgrades gradually become bigger and stronger, future career concentration will continue to increase.
International steel construction company mainly business model advantage "program, production and means" integrated operations. At present, many domestic steel construction company by the technical capacity constraints, multi-use business model processing components and devices, while medium and small companies is the only member-based processing, profitability can not be the first in the company compared with the occupation.
Excellent steel construction company must have a strong technical team means, with strict organizational construction, improve the construction program, skilled technical means, and with the advanced plant equipment, so as to provide a guarantee for the construction of high-quality projects.
With the steel construction market competition becomes more intense, some high-end steel structure around the company gradually extended on the basis of the steel structure of goods produced on the end of the business chain, using the international mainstream business model "program, production and means" integrated operations, enhance the competitiveness of the program and device aspects, in order to gain a level higher than the occupational average gross margin.
With the rise of the central region, the implementation of the western development strategy, gradually increase investment in the central and western regions, the steel construction company provides a broad market space, South, Southwest, Northwest China is gradually becoming the emerging area of ​​steel structure for career development . Future with the advantage of increasingly prominent Midwestern region, some of the competitive advantage in the eastern coastal region, while companies in the Midwest region ahead of the layout of the first to get the advantage in the regional market competition.
The future development of China's steel structure will be visible points in three offshore oil engineering equipment, steel structure housing, steel structure bridges, such as the country's 590,000 highway bridges, for example, the current steel structure bridge less than 1%, while the steel bridge construction In Japan accounted for 41 percent, the United States accounted for 33%, shows that the market demand of the steel structure of the bridge, industrial development and the developed countries there is a big gap. National Development and Reform Commission, Ministry of Industry, Science and Technology is also being studied to determine the relevant strategic new industries and program objectives of the international advanced level, independent innovation ability, strong international competitiveness and can occupy more market industry, will be included in the plan and to give support policies. Opportunities and challenges, China's steel industry can construct on the steps on the scale, critical to the development of the last decade.