Advantages:
1. greatly saves the construction time, and the construction is not affected by seasons.
2. Increase the use area of residential space and reduce construction waste and environmental pollution.
3. Building materials can be reused to promote the development of other new building materials industries.
4. It has the characteristics of good seismic performance, easy reconstruction, flexible and convenient use, and brings comfort to people.
5. High strength, light weight, high component safety and low cost.
6 in line with the national sustainable development strategy, low-carbon, green, environmental protection, energy saving and other industries are key industries supported by the state.
Disadvantages:
Due to the non-renewable land resources, the Ministry of Construction has banned the use of traditional clay bricks. At the same time, China's steel output has reached 654.38 billion tons. The situation of serious oversupply forces iron and steel enterprises to find another way, introduce foreign mature steel structure residential building system, and find a new way out for the construction industry and steel industry. Therefore, steel mills and building materials enterprises are in the forefront of steel residential buildings.
1. It is heat-resistant and fire-resistant, and needs to be coated with fire-retardant paint.
2. It is easy to be corroded, and the surface needs to be coated with antirust paint to reduce or avoid corrosion and improve durability.
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Introduction of steel structure building? What is a steel structure building? Generally speaking, what is the basic situation of China's construction industry and the future development of steel structure buildings in China's construction industry? The following is the introduction of architectural terms related to steel structure buildings by Zhong Da Consulting, and the basic situation is as follows:
What is a steel structure building?
Steel structure building, a new building system, has the industrial boundaries of real estate, construction and metallurgy. It is a new industrial system and is generally optimistic about steel structure building system in the industry.
At present, the application of steel structure building in high-rise buildings is becoming more and more mature, and it has gradually become the mainstream building technology, which is the development direction of future buildings.
Development of steel structure buildings;
After the annual output of China steel exceeded 1 100 million tons, the price of steel decreased from 1995. For example, the cost of steel structure fabrication and installation (including materials, fabrication, transportation and installation) is from 9000- 10000 yuan/ton in 1995 to 5000-6000 yuan/ton by the end of 2000. In order to welcome the 2008 Olympic Games, Beijing will invest 654.38+08 billion yuan to renovate stadiums, build urban infrastructure projects and build a number of high-end houses and hotels in the next few years. At the same time, Beijing belongs to the 8-degree seismic fortification zone in the earthquake fault zone. Therefore, steel structure architecture will undoubtedly become the mainstream of Beijing's future architecture.
Development mode of steel structure building;
Energy saving, high efficiency, environmental protection and industrialization. In the last few years of the 20th century, the urban housing construction in China developed rapidly, with an annual completed area of 440 million square meters and a total output value of 600 billion yuan (about 9% of GDP). The housing industry has become a new growth point of the national economy in the new century. Realizing the modernization of housing industry and solving the problems existing in current housing construction, such as low industrialization level, low yield, low grade of housing materials, short service life, high energy consumption of solid clay bricks, which are not conducive to environmental protection, have been included in the urgent problems to be solved in the new century. China's construction industry requires the whole industry to study the new system of steel structure application in various buildings, expand its application scope and develop multi-storey steel structure buildings. Internationally, American designers and architects attach great importance to the study of metal structures and their durability, practicality and economy. European experts put forward that steel structures have the conditions of green buildings, that is, buildings that are conducive to protecting the environment and saving energy. They think that the metal structure building has a good sense of space and can realize innovative planning and space design. Buildings should not only live and use, but also consider creating more comfortable space for people and saving energy. Japan's steel output is159 million tons in 1998, and steel for building structures accounts for 13%, while steel structure houses account for a considerable proportion of steel for building structures, and high-rise buildings are everywhere in Hong Kong. In the earthquake in Taiwan Province Province, steel structure buildings are obviously superior to reinforced concrete buildings. Judging from the earthquake damage, the general multi-storey houses basically collapsed to the ground, while the houses built with steel structures did not collapse. Therefore, the authorities of Taiwan Province Province require all multi-storey houses to be built with steel structures. The attempt to adopt steel structure in multi-storey residential buildings and small high-rise residential buildings in China began in Tianjin. Tianjin adopts three schemes with different structures, different wall materials and different construction methods. Start a pilot project with a scale of over 200,000 square meters. One is to adopt the structural form of large-bay square concrete-filled steel tubular column; Secondly, steel truss structure is adopted; Thirdly, the concrete filled steel tube structure is adopted. The steel consumption per square meter of the three structures is less than that of reinforced concrete structures. In Qingdao, Shanghai and Xinjiang, a certain area of housing and residential projects are listed as pilot projects. At present, the "steel structure residence" in China has just started, and many structures cannot be mass-produced. So steel structure is more expensive than concrete structure. After calculation, the construction unit of Beijing Gina Apartment thinks that although the overall price of steel structure is still relatively high, the comprehensive cost is not high due to short construction period, low energy consumption, high utilization rate and improved quality level. At the same time, as this is the first demonstration project of steel structure residence in Beijing, all suppliers provide steel structure at the most favorable price, and the total cost is similar to that of concrete structure.
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Introduction of steel structure building? What is a steel structure building? How does China's construction industry stipulate steel structures now? What are the basic rules? The following is the basic information of architectural terminology of steel structure construction specialty compiled by Zhong Da Consulting:
What is a steel structure building?
Steel structure building, a new building system, has the industrial boundaries of real estate, construction and metallurgy. It is a new industrial system and is generally optimistic about steel structure building system in the industry.
Compared with traditional concrete buildings, steel plates or sections are used to replace reinforced concrete in steel structures, which has higher strength and better seismic performance. And because the components can be manufactured in the factory and installed in the field. Therefore, the construction period is greatly shortened, and because the steel can be reused, the construction waste can be greatly reduced, which is more green and environmentally friendly. Therefore, it is widely used in industrial buildings and civil buildings all over the world.
At present, the application of steel structure building in high-rise buildings is becoming more and more mature, and it has gradually become the mainstream building technology, which is the development direction of future buildings.
Basic advantages of steel structure building:
The "ratio of bulk density to strength" of steel is generally less than that of wood, concrete and masonry, so the steel structure is lighter, 30%-50% lighter than the reinforced concrete structure; In addition, the steel structure has a smaller cross section, which can increase the effective building area by about 8% compared with the reinforced concrete structure. The Songhua River Steel Truss Bridge, Yellow River Bridge and Shanghai International Hotel built in the early 20th century all adopted steel structures. After the founding of New China, the development speed of steel structure of civil high-rise buildings in China has been further accelerated. Among the dozens of high-rise steel structures in China, Beijing has six: Jingguang Center (208 meters high), Jingcheng Tower (0/82 meters high), International Trade Center (0/55.2 meters high), Changfugong Hotel (90.9 meters high) and Shangri-La Hotel (82.7 meters high). Hundreds of airports in China will adopt steel structure design to speed up the construction and increase the space. It can be seen that high-speed economy needs steel structure.
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