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Comparison of advantages of steel structure and concrete structure

Comparison of advantages of steel structure and concrete structure

(Summary description)
As a consensus, compared with the currently commonly used concrete, the steel structure can be constructed in a dry manner, saves water, occupies less land for construction, generates less noise and dust; 3. The use of concrete and bricks and tiles has been greatly reduced, and the excavation of rocks around the city has been reduced, which is beneficial to environmental protection. Less garbage, high recycling price of scrap steel resources. From the current point of view, steel structure buildings are one of the structures that have the least impact on the urban environment, and have been widely used in the West, so they are called green buildings. my country has also formulated a series of technical specifications and supporting policies and organizations for the development of steel structures: 1. In 1996, the Ministry of Construction compiled the "1996-2010 Construction Technology Policy", which proposed to develop anti-corrosion technology, waterproof and fire-resistant coating technology for steel structures. In order to meet the development needs of construction steel; 2. In October 1998, the Ministry of Construction issued the "Notice on the Promotion and Application of 10 New Technologies in the Construction Industry", in which the 8th new technology to be promoted is steel structure technology. The main contents are: high-rise steel structure technology, space steel structure technology, steel-concrete composite structure technology, high-strength bolt connection and welding technology, steel structure protection technology; 3. In May 1999, the Ministry of Construction and the State Bureau of Metallurgical Industry were established. Construction steel technical coordination group, and established two expert groups, "reinforced concrete" and "steel structure"; At the Structural Technology Development Seminar, the Ministry of Construction and the State Bureau of Metallurgical Industry formed a national steel structure expert group to discuss the "Tenth Five-Year" plan for the national construction steel structure industry, the outline of the 2010 development plan and the construction steel structure engineering technology policy. Experts propose that building steel structures be classified into five categories: high-rise heavy-duty steel structures, large-span steel structures, light-duty steel structures, steel-concrete composite structures, and residential steel structures. During the "Tenth Five-Year Plan" period, residential steel structures should be the focus of development. 5. The Ministry of Construction Jianbiao (2001) No. 131 document promulgated the national industry standard of frequency welded thin-wall H-beam for structural use. This move will promote the further promotion and application of domestic high-frequency welded H-beams. Under the guidance of these policies, my country's steel structure buildings have developed rapidly. Since the 1980s, more than 40 high-rise steel structure buildings have been built or under construction in mainland my country, with a total area of ​​about 3.2 million square meters, a steel consumption of about 300,000 tons, and a capital of about 60 billion yuan. In Beijing, Shanghai, Shenzhen, Dalian, Tianjin and other places, a construction boom has formed, especially in Lujiazui Financial District in Pudong, Shanghai. There are 12 high-rise steel structure buildings that have been completed or are under construction. The completed Shanghai Jinmao Building (88 floors, high up to 420.5 meters) and the World Financial Tower under construction, making China's high-rise buildings into the forefront of the world. Correspondingly, great progress has been made in the scientific research, design and various supporting construction of high-rise steel structures. The mechanized construction companies of the system have reached a high level in the production and installation of steel structures. In recent years, the spatial structure represented by the grid and the grid shell has also continued to develop in a large amount. The structure is characterized by reasonable force, high rigidity, light weight, single rod, easy production and installation, and can meet the requirements of large span, high space and various architectural forms. It is not only used in general civil buildings, but also in industrial plants, hangars, terminal buildings, stadiums, exhibition centers, etc. Such as Tianjin Seamless Steel Tube Factory, Capital Airport Maintenance Depot, Tianjin Gymnasium and Shanghai Gymnasium all have a span of 70 to 80 meters. The dry welding shed of Yangzhou No. 2 Power Plant has already adopted several grids or grid shells with a span of more than 100 meters. In contrast, Yunnan Yuxi Cigarette Factory's continuous grid-frame workshop has reached 120,000 square meters, and the spatial grid structure is rich in shape changes, such as the butterfly-shaped reticulated shell of Yichun Stadium, the shell-shaped reticulated shell of Weihai Gymnasium, and the multi-d

Comparison of advantages of steel structure and concrete structure

(Summary description)
As a consensus, compared with the currently commonly used concrete, the steel structure can be constructed in a dry manner, saves water, occupies less land for construction, generates less noise and dust; 3. The use of concrete and bricks and tiles has been greatly reduced, and the excavation of rocks around the city has been reduced, which is beneficial to environmental protection. Less garbage, high recycling price of scrap steel resources. From the current point of view, steel structure buildings are one of the structures that have the least impact on the urban environment, and have been widely used in the West, so they are called green buildings. my country has also formulated a series of technical specifications and supporting policies and organizations for the development of steel structures: 1. In 1996, the Ministry of Construction compiled the "1996-2010 Construction Technology Policy", which proposed to develop anti-corrosion technology, waterproof and fire-resistant coating technology for steel structures. In order to meet the development needs of construction steel; 2. In October 1998, the Ministry of Construction issued the "Notice on the Promotion and Application of 10 New Technologies in the Construction Industry", in which the 8th new technology to be promoted is steel structure technology. The main contents are: high-rise steel structure technology, space steel structure technology, steel-concrete composite structure technology, high-strength bolt connection and welding technology, steel structure protection technology; 3. In May 1999, the Ministry of Construction and the State Bureau of Metallurgical Industry were established. Construction steel technical coordination group, and established two expert groups, "reinforced concrete" and "steel structure"; At the Structural Technology Development Seminar, the Ministry of Construction and the State Bureau of Metallurgical Industry formed a national steel structure expert group to discuss the "Tenth Five-Year" plan for the national construction steel structure industry, the outline of the 2010 development plan and the construction steel structure engineering technology policy. Experts propose that building steel structures be classified into five categories: high-rise heavy-duty steel structures, large-span steel structures, light-duty steel structures, steel-concrete composite structures, and residential steel structures. During the "Tenth Five-Year Plan" period, residential steel structures should be the focus of development. 5. The Ministry of Construction Jianbiao (2001) No. 131 document promulgated the national industry standard of frequency welded thin-wall H-beam for structural use. This move will promote the further promotion and application of domestic high-frequency welded H-beams. Under the guidance of these policies, my country's steel structure buildings have developed rapidly. Since the 1980s, more than 40 high-rise steel structure buildings have been built or under construction in mainland my country, with a total area of ​​about 3.2 million square meters, a steel consumption of about 300,000 tons, and a capital of about 60 billion yuan. In Beijing, Shanghai, Shenzhen, Dalian, Tianjin and other places, a construction boom has formed, especially in Lujiazui Financial District in Pudong, Shanghai. There are 12 high-rise steel structure buildings that have been completed or are under construction. The completed Shanghai Jinmao Building (88 floors, high up to 420.5 meters) and the World Financial Tower under construction, making China's high-rise buildings into the forefront of the world. Correspondingly, great progress has been made in the scientific research, design and various supporting construction of high-rise steel structures. The mechanized construction companies of the system have reached a high level in the production and installation of steel structures. In recent years, the spatial structure represented by the grid and the grid shell has also continued to develop in a large amount. The structure is characterized by reasonable force, high rigidity, light weight, single rod, easy production and installation, and can meet the requirements of large span, high space and various architectural forms. It is not only used in general civil buildings, but also in industrial plants, hangars, terminal buildings, stadiums, exhibition centers, etc. Such as Tianjin Seamless Steel Tube Factory, Capital Airport Maintenance Depot, Tianjin Gymnasium and Shanghai Gymnasium all have a span of 70 to 80 meters. The dry welding shed of Yangzhou No. 2 Power Plant has already adopted several grids or grid shells with a span of more than 100 meters. In contrast, Yunnan Yuxi Cigarette Factory's continuous grid-frame workshop has reached 120,000 square meters, and the spatial grid structure is rich in shape changes, such as the butterfly-shaped reticulated shell of Yichun Stadium, the shell-shaped reticulated shell of Weihai Gymnasium, and the multi-d

Information

As a consensus, compared with the currently commonly used concrete, the steel structure can be constructed in a dry manner, saves water, occupies less land for construction, generates less noise and dust; 3. The use of concrete and bricks and tiles has been greatly reduced, and the excavation of rocks around the city has been reduced, which is beneficial to environmental protection. Less garbage, high recycling price of scrap steel resources. From the current point of view, steel structure buildings are one of the structures that have the least impact on the urban environment, and have been widely used in the West, so they are called green buildings. my country has also formulated a series of technical specifications and supporting policies and organizations for the development of steel structures: 1. In 1996, the Ministry of Construction compiled the "1996-2010 Construction Technology Policy", which proposed to develop anti-corrosion technology, waterproof and fire-resistant coating technology for steel structures. In order to meet the development needs of construction steel; 2. In October 1998, the Ministry of Construction issued the "Notice on the Promotion and Application of 10 New Technologies in the Construction Industry", in which the 8th new technology to be promoted is steel structure technology. The main contents are: high-rise steel structure technology, space steel structure technology, steel-concrete composite structure technology, high-strength bolt connection and welding technology, steel structure protection technology; 3. In May 1999, the Ministry of Construction and the State Bureau of Metallurgical Industry were established. Construction steel technical coordination group, and established two expert groups, "reinforced concrete" and "steel structure"; At the Structural Technology Development Seminar, the Ministry of Construction and the State Bureau of Metallurgical Industry formed a national steel structure expert group to discuss the "Tenth Five-Year" plan for the national construction steel structure industry, the outline of the 2010 development plan and the construction steel structure engineering technology policy. Experts propose that building steel structures be classified into five categories: high-rise heavy-duty steel structures, large-span steel structures, light-duty steel structures, steel-concrete composite structures, and residential steel structures. During the "Tenth Five-Year Plan" period, residential steel structures should be the focus of development. 5. The Ministry of Construction Jianbiao (2001) No. 131 document promulgated the national industry standard of frequency welded thin-wall H-beam for structural use. This move will promote the further promotion and application of domestic high-frequency welded H-beams. Under the guidance of these policies, my country's steel structure buildings have developed rapidly. Since the 1980s, more than 40 high-rise steel structure buildings have been built or under construction in mainland my country, with a total area of ​​about 3.2 million square meters, a steel consumption of about 300,000 tons, and a capital of about 60 billion yuan. In Beijing, Shanghai, Shenzhen, Dalian, Tianjin and other places, a construction boom has formed, especially in Lujiazui Financial District in Pudong, Shanghai. There are 12 high-rise steel structure buildings that have been completed or are under construction. The completed Shanghai Jinmao Building (88 floors, high up to 420.5 meters) and the World Financial Tower under construction, making China's high-rise buildings into the forefront of the world. Correspondingly, great progress has been made in the scientific research, design and various supporting construction of high-rise steel structures. The mechanized construction companies of the system have reached a high level in the production and installation of steel structures. In recent years, the spatial structure represented by the grid and the grid shell has also continued to develop in a large amount. The structure is characterized by reasonable force, high rigidity, light weight, single rod, easy production and installation, and can meet the requirements of large span, high space and various architectural forms. It is not only used in general civil buildings, but also in industrial plants, hangars, terminal buildings, stadiums, exhibition centers, etc. Such as Tianjin Seamless Steel Tube Factory, Capital Airport Maintenance Depot, Tianjin Gymnasium and Shanghai Gymnasium all have a span of 70 to 80 meters. The dry welding shed of Yangzhou No. 2 Power Plant has already adopted several grids or grid shells with a span of more than 100 meters. In contrast, Yunnan Yuxi Cigarette Factory's continuous grid-frame workshop has reached 120,000 square meters, and the spatial grid structure is rich in shape changes, such as the butterfly-shaped reticulated shell of Yichun Stadium, the shell-shaped reticulated shell of Weihai Gymnasium, and the multi-dimensional grid of Hainan Giant Buddha. This is the case for multi-layer multi-span grids. It should be said that grids and reticulated shells are still the mainstream of my country's current spatial structure construction. A number of terminals, convention and exhibition centers, and stadiums have begun to use short tubes and round steel tubes to make space trusses, arches and cable-stayed grid structures. , In addition, the wavy roof has attracted people's attention. Warehouses, stadiums, exhibition halls, mobile homes, plus-storey buildings, building materials, furniture and other trading markets. The market has become more competitive as foreign housing factory manufacturers have entered China. The thermal insulation, thermal insulation materials, fire protection, anti-corrosion coatings, lighting components, doors and windows and connectors supporting the light steel structure have also been developed rapidly. The product quality has been continuously improved, and the varieties and specifications basically meet the needs of light steel buildings. Due to the light weight, good seismic performance and high degree of industrialization of steel structure, it is a kind of green environmental protection product, and steel structure can be widely used in residential buildings. The residential steel structure, which has a major role in promoting the national economy, is conducive to rapidly improving the degree of residential industrialization and promoting the technological innovation and industrial structure adjustment of construction steel in my country. In the 1980s, my country began to introduce foreign light steel housing for development and research. Recently, the Science and Technology Department of the Ministry of Construction and the Housing Industrialization Promotion Center organized relevant units to actively promote the research and development of residential steel structures. Changsha and other places carry out design research and engineering pilot projects. my country's development of the steel structure market has a very broad prospect. It conforms to the national policy of protecting the environment and land resources. The total amount of steel products in my country ranks first in the world, which provides a material basis for vigorously developing steel structures. The gap with the western developed countries will make us catch up. The application of steel structure will trigger a series of revolutions in design and construction. develop.

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Fengyuan Steel Structure

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