Town into a steel structure housing provides a broad space
Urbanization and the housing distribution system reform in our country, housing construction and become the new consumption hot spots and economic growth, housing construction investment is accounted for 26.6% of the whole society fixed asset investment. Housing industry is an important one of pillar industries of national economy. However, China's residential construction technology content is low, has long been used & other; QinZhuanHanWa & throughout; Patterns, which on the one hand, restricted the our country housing construction technology and improvement of housing industrialization degree, on the other hand also make increasingly prominent environmental problems in residential construction.
Along with the housing has become a new growth point of economic development in our country, housing industrialization is the only way for the development of the housing. The housing industrialization is the premise of industry matching with new technology, new material and new system. Due to the steel structure housing is easy to realize industrialized production, standardization production, and wall materials can be associated with adoption of energy-saving, environmental protection new materials, as a result, the steel structure housing, complete sets of technology will greatly promote the rapid development of housing industrialization.
In the industrial developed countries, such as the United States, Japan, Britain, steel structure residence is more popular, the Australian industry steel frame houses accounted for 50% of the total number of housing; Japan steel structure construction accounts for over 50% of the total construction; Finland, Sweden, Denmark and France have already formed a sizable industrialization of steel structure housing system; The United States is among the first countries to adopt steel frame structure housing, by the end of 2000, steel structure residence in the United States have accounted for 75% of total construction, and in proportion to the amount of steel structure residential housing in our country is very small.
China construction metal structure associationSteel structure specialistXue Fa thinks, steel structure building development level is often measure a country or region's economic development level of important symbol. Steel structure housing starts late in our country, but the market potential is tremendous, there is a big rise space. From the point of the development of steel structure construction in our country, from 2001 to 2008, the industry of steel structure of the compound growth rate of 30%. The quickening pace of urbanization in our country, steel structure residential broad prospects.
Steel structure housing many advantage is very obvious
Xue Fa says, the advantage of steel structure residence is very prominent, first, the steel structure housing design and manufacturing cycle short, integration of design and production. Modern structure design by using computer and professional structural analysis software, greatly shorten the design cycle, the design of modification and adjustment are very convenient. At the same time, due to the steel structure has the characteristics of factory prefabrication, site installation, can be the scene of the preliminary design and production methods, the combination of computer and nc machine through the network, make the design personnel design finished, in the studio that produced by factory production line to finish products, high efficiency and accuracy, can greatly reduce the project construction period. Second, the steel structure housing can reasonable arrangement function range. Residents in residential buildings, architects, and always want to be able to have a big span structure without vertical space, in this way, can according to the requirements for flexible partition, make indoor layout are diversified. Steel structure housing can take advantage of the characteristics of high strength steel, using column grid of big width room to decorate, make the building plane flexible space, is designed for architect provides room for manoeuvre, and gives the user according to different purposes may change the structure, can make use of nonbearing wall flexible space and interior space, to form an open house. At the same time, the advantage of the characteristics of steel structure connection simple, better than the traditional structure in vertical plane used wrong layer, the structure that jump a layer. Due to the steel structure housing component cross section size is small, can increase the using area, improve the room rate. Third, high strength of the steel structure housing bearing, seismic performance is superior. The same load, the steel structure of minimal cross section; The same cross section, the largest steel structure bearing capacity. In seismic area, there are many shortcomings of reinforced concrete structures, the steel structure, light weight, 6 light steel housing is only equivalent to the weight of the 4 layer brick structure, the weight of the therefore, itself of small earthquakes; And steel with high ductility and good energy dissipation ability, therefore, the seismic performance is good, the structure safety degree is high. Fourth, the advantages of steel structure residence in construction. Cast-in-situ concrete need continuous construction, in areas affected by the construction season in the north of China. Steel production in the factory, most of the components to the whole assembled by bolts or welding, can be all-weather operations. Small construction site work, reduced the construction of temporary land use, compared with the traditional building materials, small pollution on the surrounding environment, improve the mechanization level of the construction. Due to theSteel structure constructionWhen can save mould, mould materials, hence lower costs and greatly accelerate the construction speed. Money value fully embodies in the construction, reduce the cost of capital, sales and money collecting is extremely advantageous to developers. Fifth, the steel structure housing comprehensive cost is low. Steel structure, high bearing capacity, can realize larger space layout structure, component cross section is small, compared with the concrete structure and brick structure, lighter weight, the foundation of the processing is easy, can be used in a natural base type. Because based on the project cost occupies the proportion is larger, the upper structure light weight can reduce the cost of foundation, thus reducing the project investment.Steel structure constructionMechanized high characteristic, on the other hand, reduce the labor cost and templates and other auxiliary materials. Sixth, the steel structure housing in line with the requirements of housing industrialization and sustainable development. Steel structure is suitable for mass production factory, high degree of industrialization and commercialization. It can, waterproof, thermal insulation, energy-saving Windows and other advanced products together, achieve comprehensive sets of application, the design, production, installation integration, improve the level of housing industrialization. In the future with the development of urban construction, urban renovation need to dismantle a lot of the old building, steel structure demolition is easier to implement than traditional structure, steel recycling utilization rate is high, the demolition of low cost, less pollution, conform to the requirements of sustainable development.
In recent years, with the development of urban construction and the increasing of the high-rise buildings, the steel structure development is very rapidly in our country, as a kind of green building steel structure residence, has been of housing and urban-rural development as a key promotion project. Especially in large and medium-sized cities in our country, more people and less land resources, and people on residential density and environmental green space requirements more and more high, wide range application of steel structure housing, is the inevitable outcome of the productivity development to a certain stage.
Steel structure housing technology level has been complete
Since 1970 s, with the rapid development of global economy, steel structure and steel structure housing technologies in developed countries and regions to get the in-depth development of global economy, to mature as a whole. Steel structure housing technology have made great progress in breadth and depth. Breadth aspect mainly for the steel structure housing technology research and application have been from Europe, the americas a handful of countries and regions to promote more countries and regions. Japan, South Korea and Australia and other countries and Chinese Taiwan area of the steel structure housing technology development trend is particularly strong. Development depth of main show is: whether there is a requirement for special structure in public buildings and industrial buildings with large span requirements or in the field of residential construction, steel structure technology are obtained the full development, at the same time, the steel structure housing is gradually to the industrialized production, this is the steel structure housing technology development important marks of maturity.
The steel structure housing at present in China, various research is in full swing at home already has 13 steel structure companies tried to steel structure residence, 32 and has built about 3 million square meters around the steel structure housing project. However, the vast majority of manufacturers have adopted & other; Steel frame masonry wall is reflected throughout pouring slab or floor & steel sheet; Such as system, did not formation complete, in the true sense of steel structure residential system.
According to the survey, in numerous business enterprises which engaged in research and development of steel structure housing, hangxiao, the most representative and a breakthrough in the field of steel structure residence. Hangxiao is one of the earliest implementation of steel structure building industrial enterprises in our country, as early as the mid - 1990 - s, began to focus on steel structure residential system technology research and development and product development. For research and development of steel structure residential system, hangxiao with zhejiang university jointly set up & the other; Throughout zhejiang hangxiao research & development center at the university; In 2003, in hangzhou xiaoshan built 130000 square meters of production base, steel members and introduce the world's leading production equipment and technology. The company pays attention to the research and development of independent intellectual property rights, joint development, entrusted development, experiment and computer model, successively for structural components, connections node, 52 SanBan system of the performance test and inspection, both inside and outside the new LouCheng board, wall board, construction methods, etc, for more than 30 patents. Among them, & other; Steel structure housing assembly & throughout; Access to national invention patents, and successfully applied to steel structure residential group & ndash; & ndash; Wuhan century garden (formerly the ministry of construction demonstration area) and Angola's state housing projects, projects, etc.
To make the steel structure housing in our country widely development, hangxiao steel structure housing and housing industrialization actively explore and residential relations of sustainable development, is believed to be of housing and urban-rural development & other National housing industrialization base & throughout; . After solve the problem of the steel structure housing system, the company will provide to the people the complete residential commodity, including all the inside housing construction department, such as sanitary ware, integral kitchen, etc., are presented to the user in sales of disposable. Such residential pattern completely conform to the state vigorously advocated by the residential industrialization and residential sustainability policy guidance. Steel structure housing many advantage is very obvious
Xue Fa says, the advantage of steel structure residence is very prominent, first, the steel structure housing design and manufacturing cycle short, integration of design and production. Modern structure design by using computer and professional structural analysis software, greatly shorten the design cycle, the design of modification and adjustment are very convenient. At the same time, due to the steel structure has the characteristics of factory prefabrication, site installation, can be the scene of the preliminary design and production methods, the combination of computer and nc machine through the network, make the design personnel design finished, in the studio that produced by factory production line to finish products, high efficiency and accuracy, can greatly reduce the project construction period. Second, the steel structure housing can reasonable arrangement function range. Residents in residential buildings, architects, and always want to be able to have a big span structure without vertical space, in this way, can according to the requirements for flexible partition, make indoor layout are diversified. Steel structure housing can take advantage of the characteristics of high strength steel, using column grid of big width room to decorate, make the building plane flexible space, is designed for architect provides room for manoeuvre, and gives the user according to different purposes may change the structure, can make use of nonbearing wall flexible space and interior space, to form an open house. At the same time, the advantage of the characteristics of steel structure connection simple, better than the traditional structure in vertical plane used wrong layer, the structure that jump a layer. Due to the steel structure housing component cross section size is small, can increase the using area, improve the room rate. Third, high strength of the steel structure housing bearing, seismic performance is superior. The same load, the steel structure of minimal cross section; The same cross section, the largest steel structure bearing capacity. In seismic area, there are many shortcomings of reinforced concrete structures, the steel structure, light weight, 6 light steel housing is only equivalent to the weight of the 4 layer brick structure, the weight of the therefore, itself of small earthquakes; And steel with high ductility and good energy dissipation ability, therefore, the seismic performance is good, the structure safety degree is high. Fourth, the advantages of steel structure residence in construction. Cast-in-situ concrete need continuous construction, in areas affected by the construction season in the north of China. Steel production in the factory, most of the components to the whole assembled by bolts or welding, can be all-weather operations. Small construction site work, reduced the construction of temporary land use, compared with the traditional building materials, small pollution on the surrounding environment, improve the mechanization level of the construction. Because in construction of steel structure can save die, die materials, hence lower costs and greatly accelerate the construction speed. Money value fully embodies in the construction, reduce the cost of capital, sales and money collecting is extremely advantageous to developers. Fifth, the steel structure housing comprehensive cost is low. Steel structure, high bearing capacity, can realize larger space layout structure, component cross section is small, compared with the concrete structure and brick structure, lighter weight, the foundation of the processing is easy, can be used in a natural base type. Because based on the project cost occupies the proportion is larger, the upper structure light weight can reduce the cost of foundation, thus reducing the project investment. Steel structure construction mechanization high characteristic, on the other hand, reduce the labor cost and templates and other auxiliary materials. Sixth, the steel structure housing in line with the requirements of housing industrialization and sustainable development. Steel structure is suitable for mass production factory, high degree of industrialization and commercialization. It can, waterproof, thermal insulation, energy-saving Windows and other advanced products together, achieve comprehensive sets of application, the design, production, installation integration, improve the level of housing industrialization. In the future with the development of urban construction, urban renovation need to dismantle a lot of the old building, steel structure demolition is easier to implement than traditional structure, steel recycling utilization rate is high, the demolition of low cost, less pollution, conform to the requirements of sustainable development.
In recent years, with the development of urban construction and the increasing of the high-rise buildings, the steel structure development is very rapidly in our country, as a kind of green building steel structure residence, has been of housing and urban-rural development as a key promotion project. Especially in large and medium-sized cities in our country, more people and less land resources, and people on residential density and environmental green space requirements more and more high, wide range application of steel structure housing, is the inevitable outcome of the productivity development to a certain stage.
Steel structure housing technology level has been complete
Since 1970 s, with the rapid development of global economy, steel structure and steel structure housing technologies in developed countries and regions to get the in-depth development of global economy, to mature as a whole. Steel structure housing technology have made great progress in breadth and depth. Breadth aspect mainly for the steel structure housing technology research and application have been from Europe, the americas a handful of countries and regions to promote more countries and regions. Japan, South Korea and Australia and other countries and Chinese Taiwan area of the steel structure housing technology development trend is particularly strong. Development depth of main show is: whether there is a requirement for special structure in public buildings and industrial buildings with large span requirements or in the field of residential construction, steel structure technology are obtained the full development, at the same time, the steel structure housing is gradually to the industrialized production, this is the steel structure housing technology development important marks of maturity.
The steel structure housing at present in China, various research is in full swing at home already has 13 steel structure companies tried to steel structure residence, 32 and has built about 3 million square meters around the steel structure housing project. However, the vast majority of manufacturers have adopted & other; Steel frame masonry wall is reflected throughout pouring slab or floor & steel sheet; Such as system, did not formation complete, in the true sense of steel structure residential system.
According to the survey, in numerous business enterprises which engaged in research and development of steel structure housing, hangxiao, the most representative and a breakthrough in the field of steel structure residence. Hangxiao is one of the earliest implementation of steel structure building industrial enterprises in our country, as early as the mid - 1990 - s, began to focus on steel structure residential system technology research and development and product development. For research and development of steel structure residential system, hangxiao with zhejiang university jointly set up & the other; Throughout zhejiang hangxiao research & development center at the university; In 2003, in hangzhou xiaoshan built 130000 square meters of production base, steel members and introduce the world's leading production equipment and technology. The company pays attention to the research and development of independent intellectual property rights, joint development, entrusted development, experiment and computer model, successively for structural components, connections node, 52 SanBan system of the performance test and inspection, both inside and outside the new LouCheng board, wall board, construction methods, etc, for more than 30 patents. Among them, & other; Steel structure housing assembly & throughout; Access to national invention patents, and successfully applied to steel structure residential group & ndash; & ndash; Wuhan century garden (formerly the ministry of construction demonstration area) and Angola's state housing projects, projects, etc.
To make the steel structure housing in our country widely development, hangxiao steel structure housing and housing industrialization actively explore and residential relations of sustainable development, is believed to be of housing and urban-rural development & other National housing industrialization base & throughout; . After solve the problem of the steel structure housing system, the company will provide to the people the complete residential commodity, including all the inside housing construction department, such as sanitary ware, integral kitchen, etc., are presented to the user in sales of disposable. Such residential pattern completely conform to the state vigorously advocated by the residential industrialization and residential sustainability policy guidance.
Steel structure housing related policy support is needed
Building experts have been researching a kind of suitable for the sustainable development way of residential construction. Practice has proved, timberwork residence and steel structure housing materials are recyclable, less construction waste is produced. Is a national forest is scarce in our country, timberwork residence does not fit the situation of our country, the steel structure housing for our country's current economic development level is one of the best choice.
Authority, according to the steel structure residence is accord with the sustainable residential development direction of the residential structure form, in the face of growing construction waste and its damage to the environment, in the long run, the steel structure housing is the future direction of residential development in China. Therefore, our country related department also made many efforts for the development of steel structure residence. Such as the original ministry of construction has issued a series of policy encourages the development of steel structure housing, and laid a solid foundation for the development of steel structure residence.
Former ministry of construction issued at the end of 2001 "guidelines for the steel structure housing industrialization technology. The original slurry sampling group 40 items issued by the ministry of construction steel structure residential building system and key technology research project, to carry out the pilot project.
In 2005, the ministry of construction promulgated the national standard drawing of steel structure residence, in 2009, our country the first "steel structure residential design and construction regulations" issued and implemented. Standard and procedures issued solved steel structure residential construction design codes and standard drawing no proprietary. It promulgated a series of policies and measures, fully shows that the steel structure housing development in China has a mature conditions.
ractice has proved that no matter from the perspective of sustainable housing and housing industrialization, and reduce construction waste and enhance the use function of housing, steel structure housing plays an important role. In recent years, in Beijing, wuhan, Qingdao and other places have built hundreds of millions of square meters of residential steel structure.
However, at present, the proportion of total residential steel structure residence is very low, even can be neglected. Such situation does not accord with the situation of our country seriously, in the long run, a large number of construction waste generation, building materials cannot be reused, etc., for is in the midst of the urbanization of China will cause great harm, directly affect the sustainable development of residential construction, which caused great obstacles to sustainable social development.
At present, no matter from the national level, research institutes level or corporate level, steel structure residence has formed a complete system, so why development speed is slow, can't make it become the people's livelihood engineering? The personage inside course of study thinks, the main reason is that policies to promote, for steel structure housing pilot project, the scientific research projects, such as the tax and capital aspects such as the lack of relevant supporting policies, therefore, to vigorously promote need steel structure housing policies to guide the market, make steel structure housing the people's livelihood engineering, living security for the people hold up an umbrella.
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