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Construction steel to hold up the construction of China's modern cities

Promulgator: admin Send date: 2012-07-28 14:35 Visitor:

In recent years, China's construction steel industry received a huge development, the emergence of a group of outstanding steel construction, such as the Olympic Bird's Nest, Beijing Botanical Garden greenhouse Museum, Beijing Capital International Airport. Leap in the development of the construction steel industry, for the modern urban construction in China has made important contributions.

Spatial structure Branch Secretary-General of the China Steel Structure Association, Beijing University Professor Xue Su Tudor in an interview with reporters, said the steel structure is defined by the steel, steel, steel pipes, steel rope, steel beam steel, welding, riveting, bolts or glue to connect from the structure. The structure is characterized by overload, tall, large span, light, its weight capacity, erected convenient and commonly used in bridges, houses, towers, gates and other projects. China Steel Structure Association
According to reports, in China, contains two parts of the industrial and civil construction. Load-bearing structure of the material is divided into a reinforced concrete structure, steel structure, wood structure, masonry, steel - concrete composite structure. Steel light weight, high strength, good seismic performance, suitable for mass production, is an environmentally friendly energy, recycling building structure, in line with the requirements of the sustained and healthy economic development, so in high-rise buildings, large factories, large span space structure, light steel residential buildings more play to their strengths. Also a large number of the professional sector (industry) is made from steel, such as road and rail bridges, the thermal power plant and boiler steel power transmission tower, radio and television communications tower, oil and offshore platforms, nuclear power plants, wind power, water conservancy construction. Urban construction need a lot of steel, such as subway, urban light rail, overpasses, green buildings, public facilities, temporary construction.

Xue Su Tudor said, China's scientific research and design work had begun as early as the early 1950s in the last century. After the founding of New China in 1949, a three-year recovery period, is facing a dilapidated factory buildings need repair and industrial products and equipment for the economic construction as soon as possible. Upon request of the Chinese Government to the Soviet Union, after numerous studies to determine the 156 key projects funded many important projects are designed with steel, such as Anshan, Benxi Steel, Bao Steel, Wuhan Iron and Steel, FAW in Changchun, Shenyang Machine Tool Harbin Boiler Works, Fulaerji heavy plant, Dalian Shipyard, as well as the Yangtze River the first one road, rail and dual-use the Wuhan Yangtze River Bridge construction.

By the above construction, we understand from the Soviet Union to study many of the modern industrial technology and the introduction of a large number of important equipment and technology. On the one hand, the construction of new China to attract a large number of study and work abroad, experts and scholars to return home to participate in building the other hand, culture experts, scholars, engineers and technical experts. Since then, stick to self-reliance, the high level of road and established a strategic approach to our own research, design. Since then, China has gradually established a professional design, research institutes, research and development of major projects urgently needed materials, equipment and construction technology. Use of our rich resources of manganese has developed a series of high-strength low-alloy steel, such as are still used extensively for the Q345 series of 16 Mn steel structure engineering structures, by our own research and development of steel and applied to the Nanjing Yangtze River Bridge and other major projects.

This reporter has learned that China's steel areas of known results and outstanding performance and has 50 years of history, research and design units are: commitment to the Great Hall of the Museum of History and Chinese peers, Beijing Institute of Architectural Design, Railway Bridge Survey and Design Institute, the major projects of the Capital Airport, Beijing Botanical Garden, Beijing Television Arts Center; was established in 1950 is was to deploy a national engineering and technical elite, its main task is to build the Wuhan Yangtze River Bridge; founded in 1951 Beijing Iron and Steel Design & Research Institute (Angang Iron and Steel Design, in 1956 moved to Beijing), is now "steel design specifications" GB-50017-2003 editor of the unit, made a great contribution for the construction and development of Baosteel and other key steel enterprises ; Planning and Design Institute of China Aviation Industry, for the construction of airports, aircraft maintenance hangar have achieved outstanding results; Shanghai Modern Design Group was founded in 1952, East China Architectural Design Institute, the design of the Shanghai Oriental Pearl TV Tower, Pudong International Airport, Beijing CBD core area of international competition for the planning program. There was established in 1952, the Beijing Iron and Steel Research Institute, founded in 1953, the IPPR International Engineering Design & Research Institute (former Ministry of Machine Design and Research Institute), China Academy of Building Research, founded in 1955, China Jingye Building Research General Hospital (the former Ministry of Metallurgical Industry Building Research Institute) and so on. Engaged in scientific research in the field of civil construction, teaching and training personnel for several decades to form a continuous echelon personnel, academic attainments in the field of steel structures, engineering and technology research and application of the outstanding performance of the institutions, Civil Engineering, Tsinghua University, Beijing University of Architecture and Engineering, Harbin Institute of Technology Civil and Architectural Engineering, Zhejiang University, Department of Civil Engineering, Tongji University, Xi'an University of Architecture and Technology, Chongqing University of Civil Engineering and Architecture College.

Related to the pundits predicted after 5-10 years of development, construction steel industry in China will reach the international advanced level. However, due to various reasons in the field of construction steel, there are still many unfavorable factors, to some extent, restricted the development of the industry.

It is reported that in the heavy steel structure, the industry standard for high-level structure of tall buildings, steel technical regulations have been issued, a problem is the steel frame - the low cost of concrete core tube steel Province, China is currently the most widely used structural system in the range of applications and technology to be further investigated and improved. In high-rise steel structure design and mapping, the foreign application more static and strong plastic analysis is rarely used.

Light steel arch shell roof refers to the light sheet to do the door steel frame of the building envelope light housing structure (referred to as "light steel") and the pressure plate, which is the fastest growing of all types of steel in China in recent years. Light steel factory in the number and size have a larger development. These two structures is characterized by low bearing capacity reserves, especially the arched roof in half cross-snow load is very sensitive. In recent years, there have been some accidents, some shoddy, some collapse in the construction.

The spatial structure of the grid (net shell), in addition to cable and membrane structures, cable net structure and hybrid structure. Grid widely used in China, the new trends is the use of rectangular steel rod grid increased; widely used in recent years in the Terminal space truss bars the use of circular steel tube, the chord more curved; bow structure aroused interest, but its performance and application of the scale to be further explored.

Hinder the steel industry to flourish, as well as the entire industry management planning. Must accelerate the establishment of the industry to develop the information network. Industry Association has been established for many years, the number of enterprises of various types of structure, the development of a rapidly changing industry statistics have not yet been established and sound. Not yet possible to accurately grasp the development of the industry, including the number and size of the national steel company, all types of steel construction of the total (gross tonnage and construction area), the exact number can not provide a basis for government decision-making. Steel Structure Committee of the China Construction Metal Structure Association and China Steel Structure Association in this regard has already done a lot of work, should speed up the pace, to strengthen the establishment and improvement of information networks to make it play a greater role.