Steel structure building with ten advantages
Steel structure refers to the structural form of the capacity to withstand and transfer the load through the connection of steel plate and hot plate, cold bending or welding profiles. Steel structure system has the advantage of light deadweight, factory production, fast installation, short construction period, good seismic performance, investment recovery faster, less environmental pollution and other comprehensive advantages, compared with a reinforced concrete structure, more in the "high, big, light" three aspects of the development of unique advantages, globally, especially in developed countries and area, steel structure the rational, widely used in the field of construction engineering.
The steel structure industry is usually divided into light steel structure, high-rise steel structure, residential steel structure, space steel structure and 5 subclasses of bridge steel structure.
The steel structure is widely used in various engineering construction, such as steel bridge, steel plant, steel gate, various large pipe container, high-rise building and tower rail. The net of nine positive building materials summarizes the following 10 advantages:
Extent: mostly for slope roof, the roof of low-rise villa so roof structure basically USES is made of cold bending steel components triangular roof truss system, light steel members in after sealing the structural plate and plasterboard, formed a very strong "rib plate structure system", this kind of structure system have stronger earthquake and the ability to resist horizontal load, suitable for seismic intensity of 8 degrees above the area.
Wind resistance: the steel structure has light weight, high strength, good overall rigidity and strong deformation ability. The building itself is only a fifth of the masonry structure, and it can withstand a hurricane of 70 meters per second, which can effectively protect life and property.
Durability: light steel structure residential structures are all made of cold bending thin-wall steel members system composition, bone using super anticorrosion, high strength cold rolled galvanized sheet steel manufacturing, effectively avoid the steel corrosion in the process of construction and use of ring, increase the service life of the light steel structures. The structure can live up to 100 years.
Heat preservation: the thermal insulation material used is mainly fiberglass and has good thermal insulation effect. The insulation board for exterior wall, effectively avoid the "cold bridge" phenomenon of the wall, achieve better thermal insulation effect. The R15 heat resistance value of 100mm thick is equivalent to 1m thick brick wall.
Sound insulation: sound insulation is an important indicator for evaluating a home. Light steel system installation Windows are made of insulating glass, sound insulation and over 40 decibels. The wall formed by the light steel keel and the insulation plaster board, the sound insulation effect can be as high as 60 decibels.
Health: dry job construction, reduce the pollution caused by waste to the environment, the building steel structure materials can be recycled 100%, and other supporting materials can be recycled for the most part, in line with current environmental awareness; All materials are green building materials, meet the ecological environment requirement, is beneficial to health.
Comfort: the light steel wall adopts the efficient energy saving system, has the function of breathing, can adjust the indoor air dry humidity; The roof has the ventilation function, can make the air between the inside of the house to form flow, ensure the ventilated and heat dissipation demand inside the roof.
Quick: all dry work construction, not affected by the environmental season. A building of about 300 square meters, only 5 workers can complete the whole process from the foundation to the renovation in 30 working days. Environmental protection: the material can be recycled 100%, and the green pollution-free.
Energy saving: all adopt efficient energy saving wall, heat insulation, insulation, sound insulation effect, can meet the energy saving standard of 50%
"Steel structure building and circular economy high-level BBS" in Beijing
"Steel structure building and recycling economy high-level BBS" was opened in Beijing. The BBS is sponsored by the China environmental protection association and co-hosted by Arcelor, with the support of the state environmental protection administration and the ministry of construction. The National People's Congress (NPC), the national development and reform commission, ministry of construction, the state environmental protection administration, as well as the China iron and steel association, the Chinese society for metals, the national standardization technical committee of steel and other relevant departments responsible comrades or representative present at the meeting. The European experts of arcelor group attended BBS with experts from domestic universities, research institutes and other steel structures and construction industry, and conducted extensive and in-depth exchange.
Experts attending the meeting, study and relevant delegates discussed and analyzed the steel structure building in terms of energy saving and environmental protection, especially in the construction of cycle economy to take the position and function of, and in the field of Chinese architectural development and promotion of new steel structure building will be sex and importance.
Through scientific research and engineering examples, experts have compared the advantages of steel structure building in circular economy, energy conservation and environmental protection, and put forward some relevant challenges in the new era. The relevant countermeasures and Suggestions are put forward on the scientific and effective application of steel structure building in the policy, regulation and design standard.
Experts at the conference pointed out that the steel structure is a new type of building system that is energy-saving and environmentally friendly, and is regarded as one of the "green buildings" in the 21st century. Because the steel structure has light weight, high strength, good seismic performance, and convenient for industrial production and other characteristics, therefore, it is a kind of energy conservation and environmental protection, can be recycled building structure, accord with the requirement of economic sustainable and healthy development, especially in high-rise buildings, large factories, large span space structure, the more advantage in residential buildings. At the same time, also in all kinds of steel play an essential role in infrastructure construction, the qinghai-tibet railway, west to east gas pipeline, lose, south-north water diversion project, China's national petroleum reserve, the Beijing 2008 Olympic projects such as widely used steel structure building.
Experts pointed out that in 1996, the construction technology policy of 1996-2010, which was compiled by the ministry of construction, proposed that the steel structure, steel structure and construction of steel structure should be developed and installed in a reasonable way. Since then, the ministry of construction and relevant departments of the state have issued a number of articles to discuss the advantages and support measures of the development of steel structures in the whole society. In our country, steel structure building belongs to new industry. Due to the economic development level, ideas, knowledge, and limit the influence of the design specification, steel structure building in our country in the whole construction industry accounted for less than 5%, while developed countries has reached more than 50%. On the other hand, China's construction industry is in a period of rapid development, and the production scale of construction enterprises continues to expand. In the first quarter of 2006, China's construction enterprises completed a total construction output of 551.2 billion yuan, up 22.3% year on year. However, the vigorous development of construction industry in our country also brought the corresponding environmental and energy problems, in the construction industry to realize low energy consumption, energy efficient environmental protection policy has become a top priority for the sustainable development of construction industry.
The following consensus is reached on BBS: building energy consumption and pollution is a social problem. Building energy conservation and environmental protection are the common responsibilities of the whole society. Building energy conservation has become an irreversible trend in the world, and it is the development trend and the best choice for the construction industry. With the rapid development of economy and the advancement of modern design technology, steel structure building will be widely used in the world.
It is understood that the "steel structure building and recycling economy top BBS" is so far the domestic is the subject of one of the highest level for the first time BBS activities, also is the implementation of the "state council on implementing the scientific concept of development to strengthen environmental protection decision" a positive practice.
2010 the main green building steel structure will lead the trend
In recent years, under the background of the development of low-carbon economy has become a global consensus, especially in this day in 2010, in many parts of the world including China earthquake situation, people began to think about such a question: is there a both energy conservation and emissions reduction, shock resistance and high building, cost cheaper? Yes, this is the steel structure house.
Steel structure house refers to the structure of steel structure, with environmental protection, light body and energy-saving materials as the housing of the enclosure structure, which is regarded as the "green building" of the 21st century. Compared with the traditional concrete structure, it has the advantages of light weight, good seismic performance, easy repair after the disaster, low basic price, recovery and energy saving, saving land, water saving and renewable energy. However, this green building with so many advantages has been developing slowly in a big steel country like China.
Therefore, I decided to make recommendations to the government department to accelerate the development of steel structure housing.
First of all, the main focus of the development of steel structure housing is on the large scale and small high-rise residential buildings, the residential area and the use function to meet the housing standards of the well-off society in our country.
Secondly, the relevant departments should strengthen the development of steel structure housing. Such as building a steel structure housing, economy applicable room when used in land for sale commercial housing requirements must build steel structure housing, construction of steel structure residential loans and tax support, etc. When the building is approved, its tax rate shall be determined according to the carbon emission of its construction, and the market will be guided by policies, and the development of steel structure residential and related enterprises will be driven by the market.
Thirdly, we will build a pilot project of steel structure housing, build a batch of fine steel structure housing projects, and make a steady promotion of steel structure residence with a point belt surface, and innovate and develop.
Fourth, from the national level to organize the centralized strength, the development of steel structure housing standard system and material system, construction system research. Such as set up a national science and technology support plan, centralized organization steel manufacturing, building energy-saving materials, construction standard system research of national professional technical force, joint research "production, study and research", "technology, industry and trade" in advance, the standard system suitable to China's the situation as soon as possible and production specifications, form the industrial chain, the nationwide implementation of implementation.
Fifth, progressive steel structure housing industrialization. Based on the use of the existing technology, the existing wall materials, optimized integration, solution to the steel structure housing three board (floor, cladding, wallboard) problem, at the same time, based on existing in technology innovation, to improve the performance of three board and industrialization level, efforts to reduce the cost of production. We will actively build and develop specialized steel structure residential design and construction teams, constantly improve the design and construction level of steel structure residences, and lead the industry trend.
In 2010, steel structure housing will become the main green building, leading the trend of The Times!