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Steel Structure Building Merits And Demerits

Steel structure building a new kind of building system can connect the real estate, construction, metallurgical industry boundaries between the industry, set to become a new industry system, which is in the industry generally bullish on steel structure building system.

Compared with traditional concrete structures, steel structure buildings are replaced by steel plates or steel sections with reinforced concrete, with higher intensity and better earthquake resistance.And because the component can be made by factory, the site is installed, so the construction period is greatly reduced.Because of the reusability of steel, construction waste can be greatly reduced, which is more green and environmentally friendly. Therefore, it is widely adopted in the world and used in industrial buildings and civil buildings.

At present, the use of steel structure in high-rise buildings and supertall buildings is becoming more and more mature, which gradually becomes the mainstream building process, which is the development direction of future architecture.


1. Greatly economize construction time, construction is not affected by the season

2. Increase the use area of residential space and reduce construction waste and environmental pollution

3. The construction materials can be reused to promote the development of other new building materials industries

4. Good anti-seismic performance, easy to adapt and flexible in use, comfort and so on

5. High strength, light weight, high security and high degree of security, reduce building cost

6. In line with the national sustainable development strategy, low-carbon, green, environmental protection and energy conservation are among the key industries supported by the state


Due to the non-renewable land resources, the ministry of construction has banned the use of the traditional clay brick, at the same time, China's steel output reached 1 billion tons, the condition of serious supply exceeds demand has forced the iron and steel enterprises to introduce the foreign mature system of steel structure residential building, found a new way for construction and steel industry at the same time, as a result, steel mills and walk in the forefront of the steel structure residential building materials enterprises.

1. Heat resistant and not refractory, need surface coating for fire retardant coating

2. Easy to be corroded, surface need to be coated with anticorrosive paint, reduce or avoid corrosion, improve durable years

The "density and intensity ratio" of the steel is less than that of wood, concrete and brick, so the steel structure is lighter, which is 30% to 50% lighter than the reinforced concrete structure.In addition, the small section of steel structure can increase the effective area of the building by about 8% compared with the reinforced concrete structure.In the early 20th century, the steel girder bridge, the Yellow River bridge and the Shanghai international hotel were constructed in China.After the founding of new China, our country civil high-rise steel structure development accelerated further, the country more than a dozen high-rise steel structure building in Beijing accounted for six building: the jingguang center the city (208 - meter - high), tower (182 m high), international trade building (155.2 meters), (90.9 meters), shangri-la hotel new otani hotel (82.7 meters), the industrial and commercial bank of China head office (48.3 meters), and is constructing the national grand theatre engineering.Hundreds of airports across the country will adopt steel structures to speed up construction and increase space.Thus, the economy of high speed development needs steel structure.

In steel production in China, after more than one hundred million tons of steel prices down from the 1995 price, such as steel structure production, installation (including materials, manufacture, transportation, installation) from 1995 in 9000-10000 yuan/ton at the end of 2000 to 5000-6000 yuan/ton.In the next few years to meet the 2008 Olympic Games, Beijing will invest 180 billion yuan to sports reform, urban infrastructure construction and create a new batch of high grade residence and senior hotel, Beijing and belongs to the earthquake fault zone at the same time for 8 degree earthquake fortification in the area.Therefore, the steel structure will undoubtedly become the mainstream of Beijing's future architecture