Prosperous north international airport T2 terminal network frame steel structure

Prosperous north international airport T2 terminal network frame steel structure project completionThe changbei international airport, north of new steel pergolas and network frame and the ground terminal accessory works smoothly completed today. This engineering construction group 5 of the general contracting company in jiangxi province and jiangxi province construction machine co., LTD. Jiangxi province key construction project, ongoing new terminal hall, ceiling and floor, the adornment of metope, end of this year is expected to complete construction, in May of next year officially put into use. A total investment of more than one hundred million yuan of the changbei international airport's new terminal north since starting in July 2008, jiangxi construction group leadership attaches great importance to the engineering quality and safety in production work, and efforts to the project into a group and model projects of the provincial civilized construction site. T2 terminal, a total construction area ofAn area of 96616 square meters, and T1 terminal only 2.An area of 70000 square metersArea is expanded more than 3 times, compared to the new terminal peak 4373 passengers per hour, passengers can meet 12 million person-time.
Light steel structure housing: development still need across two big "gap"steel structure disgn A total of 4 sets of software
http://steelwarehouse.blogspot.com/2013/03/light-steel-structure-housing.html

The beijing-shanghai high-speed railway station in nanjing steel structure subject entered into the phase of caps18 points and 11 o 'clock yesterday morning

The beijing-shanghai high-speed railway station in nanjing steel structure subject entered into the phase of caps18 points and 11 o 'clock yesterday morning, high-profile beijing-shanghai high-speed rail station of nanjing Steel structure workshop roof rack to slip for the first time. According to introducing, roof rack slippage practical equivalent of folk building & other On the beam & throughout; , this project started, marking the nanjing south railway station station main body structure construction officially entered the top stage.

Unit 11 pieces of rack & other Spell & throughout; Out of the station roof

Nanjing south railway station steel structure made by zhongjian industrial equipment installation co., LTD is responsible for the installation, the relevant person in charge of the company field introduced yesterday, nearly 110000 tons of total stationsteel structure engineeringWhen completed, the main Steel structure workshop station in the next key project is & other; Roofing & throughout; .

South railway station of the roof is made up of two layers inside and outside: the inner layer is network frame structure; Outer layer is including insulation and waterproof layer of roof panel. Rack installation project is equivalent to south railway station & other; Liang & throughout; , is the focus of the project and the difficulty.

Because of the large span roof space, the entire roof rack will be composed of 11 pieces of independent unit assembled, with a total area of nearly 100000 square meters, equivalent to 13 football fields. 11 piece rack unit total weight of more than 8000 tons, the largest area of about 12000 square meters, weighing about 1000 tons.

The modelling of the whole roof rack & other; Throughout middle & high, around the bottom; , peak height of 58.164 meters, the lowest was 41.2 meters, the north-south and east-west the maximum length of 451 m and 211 m respectively.

It is understood that such a large-scale, DaTiLiang high rack in the domestic rare, the sliding roof rack also is the present domestic high slip the project with the biggest span.

From south to north, 9 rack & other; Slip & throughout; More than three months

Reporters yesterday at the scene to see, with the beginning of the ceremony of the first piece of network frame while began to move, but slowly sliding speed of the human eye is almost feel not to come out. Personnel on-site engineering says, at the beginning of the project in terms of phase, the network frame of the sliding speed is only about 5 meters/hour, can reach 10 meters/hour, until mid slip of the entire project is expected to use more than three months time to finish.

In the nanjing south railway station, 11 piece of roof rack, except for north and south ends of two pieces of bulk ways, among 9 all adopt the slip from the south to the north to implement.

Every & other; Slip & throughout; Step, are made & other; Robot & throughout; Accurate measurement

Crossover operation throughout the south railway station engineering is more, in order to run out of space corresponding to other project, roof rack project was done in the air. After finish assemble in about 40 m high in the sky, again through the article about a total of 4 & other; The air track & throughout; 9 pieces slip to the location on the roof rack unit, finally together as the whole roof rack.

In the process of sliding, to avoid error, both sides keep synchronous orbit must go on. In order to ensure the accuracy and security, construction group to research and development of the digital hydraulic synchronous crawling robot, as propulsion system.

To develop accurate overhead rack slippage scheme, zhongjian installation after careful consultation with the owner, design unit, the scheme also passed a number of domestic leading experts in the collective.

9 all glide rack unit in place, the nanjing south railway station will be roof decoration and m&e installation
Light steel structure combination, new ideal housing start living
http://steelwarehouse.blogspot.com/2013/03/light-steel-structure-combination-new.html

Yangzhou steel castle in the airYangzhou south gate sites scheduled pavilion Steel structure workshop & other

Yangzhou steel castle in the airYangzhou south gate sites scheduled pavilion Steel structure workshop & other; 9 & middot; 26 & throughout; Luck meet Chinese and foreign guests and the general public during the expo, the steel structure of the main frame of the pavilion construction has been completed. Reporter yesterday morning into the steel structure inside the pavilion to visit.

Without a pillar to prop up the hall

Look from the outside the south gate relics exhibition hall, let a person feel & other; Trendy & throughout; , reminiscent of the steel structure architecture woven structure & other; The bird's nest & throughout; , and the more surprising: looking from inside is too clear, daylighting is very good, and the size of the pavilion, not a pillar to prop up.

Steel structure of the pavilion is about 76 meters in length, the span of about 29-40 meters, eaves 5-6 meters high, maximum height of 12 meters, a total construction area of 2660 square meters. Outdoor building supported by steel structure frame, show lozenge crossed weave structure, steel structure for the whole project is about more than 300 tons of steel beam, the equivalent of a 300 tons of & other; A castle in the air throughout the &; , without the traditional support column, is full of the whole steel structure welding, a series of breakthrough in technology.

Concerned expert evaluation, according to the province that steel structure beam installation quality is superior, the technical level in the leading level in the province. And south gate site pavilion is Yang's first closed protect the ruins of the gate of city history.

GPS satellite positioning construction

& other; Throughout the south gate of bird nest &; Steel structure is made up of many surface, if a welding point can not meet the requirements, will bring to the whole construction of unintended consequences. Construction according to expert introduction, the south gate of the construction of the site protection exhibition hall appearance is unique, there are 17 bedding face, steel structure adopted & other Suspension method & throughout; Installation, like building castles in the air, which requires the construction of fairly high precision. With ordinary watch must not to the naked eye, with feet the amount of error is also big, therefore, in this project for the first time used the GPS satellite positioning technology, cooperate with total station device at the same time, the error is not more than 3 mm.

The glass pavilion top & other; Projection & throughout; Site of the essence

Look at south gate site from within the pavilion, pavilion at the top of the steel structure into a grid, most of the grid has been closed, still hang a lot of beautiful lamps, but there are a lot of mesh or in the open air.

Why don't the roof construction at the same time? According to introducing, has closed the grid, 5 layer composite materials is adopted, from inside to outside to use the material is aluminous model board, heat preservation and heat insulation layer respectively, sheet metal, composite waterproof layer, aluminum and glass. And haven't install building materials steel grid structure has the special function, to install the pervious to light glass, it is not only for lighting, there is a special design & ndash; & ndash; Install glass grid form a pattern, stretching from the entrance to the interior, and the light from top to bottom of projection corresponds to the south gate is the essence of the site.
2010 management present situation and the policy of light steel shed in our countrySteel structure building in China is not strange, as early as five
http://steelwarehouse.blogspot.com/2013/03/2010-management-present-situation-and.html

Construction steel pergolas market broad is not afraid of real estate regulation and control

Construction steel pergolas market broad is not afraid of real estate regulation and control 16:22:12 2010-9-6 at present, the steel structure has been widely used in the world, the world's 101 super-tall building, pure steel structure building 59, while more than 60% of the country's foreign high-grade residential steel structure is adopted. Foreign experts believe that steel structure can protect the environment, save energy, is one of the 21st century real estate product batch & quot; Dark horse & quot; .
Insiders pointed out that the advantages of steel structure building is outstanding, than America and Japan and other developed countries, the proportion in the use of building structure in our country there are still 6 times improve space, steel structure in the next five years is expected to yield more than 15% compound growth rate. The short term, the industry demand for the newworkshopAnd other public buildings, stadiums, opera, not affected by the real estate regulation and control, and real estate regulation make with drop in steel prices steady, makesteel structure supplierMay be on the cost side benefit.
Steel structure building will become the trend
Steel structure building are not uncommon, butSteel structure housingIs still very rare. But first in Beijing at the end of this yearSteel structure housingEngineering - Jin Chen apartment block B and C, will be uncovered the mysterious LIDS. According to relevant experts, this has health, environmental protection, earthquake, and many other advantages of steel structure housing, will become the future development trend of the housing in our country.
China construction metal structure association Du Zonghan has told the media, said the steel structure housing in Europe and the United States has a history of decades, it with good vibration resistance, flexible space, environmental protection etc, and developed rapidly. Along with the overall improvement of living standards, quality of housing, the quality requirements will also improve, steel structure housing will be popular. Experts believe that China's development of steel structure at the time. Last year, steel production in China in recent years has been the highest in the world, up to 157 million tons, is oversupply. Steel quality has been greatly improving and enriching, varieties, specifications, provided material base for the development of steel structure residence. At present, Beijing, Shanghai, shandong and other provinces and cities have started to steel structure residential pilot, has been listed as the ministry of construction of Beijing Jin Chen apartment building demonstration projects of residential steel structure system.
Steel structure building advantage is obvious
Compared with the brick building structure, steel structure building advantage prominent, mainly has the following several aspects:
It is light weight. High-rise reinforced concrete buildings in 1.5 ~ 2.0 t/weight? Most of left and right sides, high-rise building steel structure dead weight in 1 t /? Low, only 0.5 ~ 0.6 t /? . Light weight can reduce the transportation and installation costs, not only can reduce the cost of foundation, more than 20 floors building, steel structure building advantage.
Occupies an area of savings structure, increase the usable floor area, space utilization high. Than the reinforced concrete structure of a similar nature, high-rise building steel structure can save architecture occupies an area of 28%, thereby increasing the net area is about 4%.
3 it is easy to transform, recycling, green environmental protection.Steel structure constructionLess pollution to the environment, at the same time can also be recycled.
Fourth, seismic performance is superior. Due to the steel toughness to a certain extent, seismic performance is superior, the steel beam and steel column of flexible framework can resist more than 8 degree earthquake, therefore has been widely applied in earthquake prone countries such as Japan.
5 it is easy to install, short construction period, save the human cost, investment recovery fast. Steel structure of the basic components at the scene of the factory production, usually only the fastener and bolt installation, short construction period. General light steel project period 3 ~ 6 months, chongqinsteel big project time limit for a project about 1 year. Mega projects, only one hundred million yuan of above period is more than a year. Compared with reinforced concrete structure, 30 ~ 50 layersteel structure engineeringCan shorten construction time limit for a project about 8 ~ 12 months. Short time to ensure the owner's investment recovery faster; Component factory production to save the human cost, make steel structure building in artificial cost is very high in Europe and the United States and Japan has been widely applied.
The market development space is enormous
Steel structure advantage, but compared with developed country of steel structure industry development level, our country's development level is still low.
According to statistics, China's current housing completion area in 1.2 billion ~ 1.4 billion? , including steel structure housing accounted for less than 1%, and Japan in the late 1990 s, the precast steel structure residence proportion is 71%, the United States, Australia, France, Italy, Finland and other countries have a mature system of steel structure residence.
In 2008, the annual production of steel structure in China about 4% of total crude steel production and steel structure industry in developed countries accounts for the proportion of total crude steel output reached more than 10%. Considering the advantages, construction steel structure outstanding domestic iron and steel in the top ten industrial revitalization planning also clearly put forward the revitalization of planning, to encourage increase the percentage of steel in building structure.
With the development of steel structure technology, domestic enterprises, China & quot; Steel structure production/crude steel output & quot; Will be close to the international average, and the matching of steel structure production will rise significantly. It is estimated that if 2015 & quot; Steel structure production/crude steel output & quot; 8%, crude steel production growth is 3.5%, the steel structure production growth over the next five years will reach more than 15%.
Structural adjustment and opportunity of railway construction
Construction steel structure industry could be subdivided into chongqing steel, light steel and space steel, and other fields, is to use steel and hot rolled, cold bend or weld profile (beams, steel, pressed steel plate, etc.) through the connecting piece (bolt, high strength bolt, etc.) connected to the structure can withstand the load and load transferring.
Real estate regulation and control is undoubtedly the concerns of the recent market focus, the steel structure industry segment of the light steel main and new cycleworkshopInvestment related, will benefit from the economic structure adjustment (real estate) the purpose of regulating industry investment and regional industry transfer. Chongqing steel and space steel business benefit from railway station, sports venues and other construction climax: sintering as well as the space is large span steel business sentiment is mainly related to the railway station, Bridges, stadiums and other investment, and short-term benefit from 4 trillion lag effect, long-term benefit from consumption upgrading.
According to statistics, over the next three years China will have 800 railway station to be built. & quot; 11th five-year plan & quot; Period, the ministry of railways plans to build 548 new station (sections in & quot; five-year & quot; built), built in six major hub of passenger transportation center and 10 regional passenger transportation center, is expected to total investment of about 150 billion yuan. Above level are rated according to the city, provincial capital city district 25 seats, regional urban district 95, the county urban district 428. Points, according to level of railway passenger dedicated line to build 158 station, intercity station starting 83, general passenger main line station 292. At present, the Beijing south railway station, tianjin station of 28, QingDaoZhan already built, under construction in 52 seats, including new Wu Hanzhan, guangzhou station, hongqiao station. Has launched schemes, in the prophase work of more than 210; Has been started, including those under construction and is built in 312, newly built 804 station in 2012.
10 platform is expected, according to each station, each 5000 tons of steel weight of the platform, is can reach more than 40 million tons of steel demand, the market space is enormous. Due to the high speed rail station steel structure for the space of chongqing iron and steel, used in technical barriers is higher, larger scale in the industry leading enterprises of the seiko steel structure rack, southeast, hangxiao steel structure, etc. 10 companies will split the cake.
Will benefit from the real estate regulation and control
Construction steel structure company's gross margin is negatively related to the steel price, about 60% ~ 70% in the cost of enterprise is steel. buildingsteel structure engineeringConstruction period is short, usually held contract, project gross margin fluctuates according to raw material price fluctuations is bigger, the steel price rise, construction steel structure enterprise profit margins will decline; Conversely increases. At the same time, influenced by factors such as revenue recognition, fluctuations in gross margin usually lag steel price changes about half a year.
Real estate regulation make the steel price stability in the has fell, makesteel structure supplierOn the cost side benefit. This round of real estate regulation is likely to cause a downturn of the surveyor's, leading to real estate development huang inventory will deficiency and further lead to decline in new construction, curb demand for steel, so that the steel price is difficult to rise, the market had expected iron ore prices will push make the cost push up steel prices), even fell, on May 11, shagang mid-may part of the product price policy, construction steel prices across the board cut, the main varieties of steel largest decline up to 6%). While steel prices steady or even decline, guarantee the steel structure enterprise's gross margin. Therefore, in a sense, real estate regulation will makesteel structure supplierOn the cost side benefit.
Industry concentration will continue to improve
Light in chongqing iron and steel (including the space is large span steel) two fields, the market competition situation in our country are quite distinct from each other. Light steel technical barriers are relatively low, the entrant is more, the national qualifiedSteel structure constructionA total of more than 3000 enterprises, has a light steel construction ability. It is generally believed that light steel market competition is intense, the gross profit margin is lower, but the main report of listed companies, light steel project gross margin is not below the sintering and large span steel space, this may be because of the light steel business faster moving (light steel construction period an average of three to six months, while chongqing steel construction period 1 year), take up less money.
Lighter than the steel structure, sintering technology and space steel structure is complex, the construction is difficult, relatively high threshold, embodied in: the chongqing steel and space steel structure generally belongs to special construction requirements, not the copy of monomer structure, so the company has a strong design, debugging, construction ability; Chongqing steel and space steel project investment is larger, the project safety and quality requirement is high, so the tenderee to undertake business qualifications and historical performance is very important, there are more than level 1 requirements to undertake business of steel structure construction qualification, as well as excellent track record, no historical performance of the company is very difficult to get big project orders; Chongqinsteel, space steel structures design diversification and complicated, require companies to strong science and technology innovation ability, can in a relatively short period of time to develop new design methods, new equipment, new technology, new construction methods, to the enterprise innovation ability put forward higher requirements.
At present, the higher the barriers to make the steel structure industry in our country overall concentration presents gradually rising trend, the chongqing steel and space steel field under monopolistic competition. And participate in the competition is mainly ten before annual output over 100000 tons of the industry, leading enterprises will be the strong stronger. Among them, seiko steel structure, hangxiao, southeast of the rack and so on three big listed companies ranked the first three, each has its own characteristics in different business fields
Looked from the development history of the American market, steel structure industry has experienced the process from scattered to centralized, concentration degree enhances unceasingly. After several acquisitions and restructuring, now nearly half of the MBMA member (the metal building manufacturers association) belong to the NCI, Nucor, BlueScope this 3 big manufacturers group. The personage inside course of study thinks, the main reason for the increase of concentration of steel structure industry there are two points:
First of all, the bottleneck of qualification for sintering field form a pattern of the strong stronger. Of space steel chongqing steel structure building, general contractor qualification requirements undertake business with first-class building and excellent performance of past project, thus form a good project enterprise of the strong accumulation constant strong competitive landscape.
Secondly, steel structure products have transportation radius, the layout of the national enterprises are able to grab a bigger share of the market. Due to large steel structure product weight, volume, long transportation leads to very high transportation costs. According to statistics, the economic transportation radius steel structure processing centers in 700 ~ 1000 km, so for the layout of the national leading enterprise to reduce cost, to grab market share. (source: the Internet)

Large steel structure application of tianjin seric machine equipment co., LTD

http://steelwarehouse.blogspot.com/2013/03/large-steel-structure-application-of.html

Zhejiang Steel structure workshop enterprise brand to build China's steel structureConstruction industry is the traditional industry in zhejiang province

Zhejiang Steel structure workshop enterprise brand to build China's steel structureConstruction industry is the traditional industry in zhejiang province, is also advantage industry, zhejiang construction industry output value and profit tax index respectively for six years and 10 years, ranking first in the country, including the steel structure industry also has its place. In 12 of the new Olympic stadium in Beijing, zhejiang steel structure enterprise directly involved in the project have national stadium & other; The bird's nest & throughout; , national swimming center & other; Water cube & throughout; , the national stadium, national shooting range and the national badminton hall, etc. 5, accounting for 42% of the new Beijing Olympic venues. The steel structure building technology demands is high, the project is difficult, time is tight, the steel structure quality reflects the international advanced level.

Zhejiang steel structure enterprises directly involved in the tianjin and shenyang in the construction of Olympic venues, and take the shenyang Olympic sports center stadium and gymnasium project management and construction supervision work. Zhejiang steel structure enterprise is directly involved in the capital international airport terminal 3, national centre for the performing arts, China central television (CCTV) new sites television cultural center (TVCC), jiangning, nanjing Olympic sports center, nantong stadium, jinan Olympic sports center stadium, Shanghai world financial center, Beijing library and auxiliary project for the construction of the Beijing Olympics.

Zhejiang province steel structure industry emerged in the mid - 1980 - s, along with our country reform and opening up and development of national economy, steel structure industry gradually arisen, zhejiang southeast rack co., LTD., first enter the steel structure industry in zhejiang university, technology support, by small machinery factory in the construction industry, a career in spatial steel structure rack. In the early 90 s and the palace, seiko, shaoxing yuhang DeXian into the construction machinery enterprises. Hangxiao especially in 1995 after entering the field of light steel structure building co., LTD., zhejiang steel structure industry obtained rapid development. In 2005, xiaoshan district, hangzhou city, only 30 in the steel structure enterprise, shaw, southeast of emergence, the earth, hangzhou hengda, wave peak excellent enterprise in domestic has certain popularity. Some traditional predominantly housing construction construction enterprise, also began to enter the field of steel structure. Treasure industry construction group established industrial steel base, zhongtian construction group established a base for sintering and curtain wall, ErJian, the zhejiang province construction group in zhejiang province and zhejiang province kaiyuan installation group are all steel structure base is established. Xiaoshan in October 2005 was named China's construction steel structure base. The first-grade qualification of steel structure enterprise, zhejiang province, the existing more than 300, with seiko, hangzhou xiao, southeast, hengda, wave peak, the earth, macro DeXian, central south and the palace, etc., the company 30, the top six has entered the 2006 annual top 20 national steel structure, seiko, hangxiao steel structure group co., LTD., zhejiang southeast rack co., LTD. Hengda steel structure respectively and ranks the first, second, fourth and eighth.

In 2006, the total selected steel structure in ChinaThe gold75 construction projects, in which to reach 26, in the steel structure enterprises accounted for 34.5%. In 2006, the total selected Chinese steel structure excellent project manager 31 people, including steel structure enterprise, zhejiang province outstanding project manager to achieve 12 people, accounting for 38.7%. In the newly released "the top 20 enterprises construction steel structure industry statistics, seiko steel structure group on the top of the list again, the steel structure industry in zhejiang province construction in zhejiang province has become a powerful new force, the comprehensive strength of the industry and enterprise core competitiveness is a national leader.

Steel structure enterprise mostly private enterprises in zhejiang province, they have been with entrepreneurial passion and desire, is active practitioner of entrepreneurial innovation, attaches great importance to rely on independent innovation to improve the core competitive capacity of enterprises. Steel structure enterprise in zhejiang province in recent years, combined with the social from all walks of life force, broke the boundary of units and departments, mining and utilization of social resources, with zhejiang university and other colleges and universities, scientific research institutes to establish long-term relations of production and technical cooperation, research and development center and established the steel structure, and to design, construction, supervision and project management unit of structure and foundation treatment as the main body of the hangzhou research institute, association and the institute of plant will be collaborative, will direct scientific and technological achievements into productivity, and achieved good economic and social benefits.

Zhejiang province steel structure enterprises rely on scientific and technological innovation, in 2008 Beijing Olympic venues and other significant achievements in the construction of key projects, for the Olympics. Especially in & other; The bird's nest & throughout; To overcome in the construction component dedicated to deepen design of the bending and twisting component of software development and application of technology or bending and twisting without mold processing technology, ultra-large complex column foot, truss column, irregular space truss production technology, super large space steel structure single lifting technology, large tonnage range entity component level long oblique slip METORO rectification technology, 3 d coordinate measuring system application technology, unloading technology and twelve large complex steel structure welding technology and so on key technical problems, won the Chinese steel structureThe goldAnd achieved national, paragraphs method 2 and method 3 at the provincial level. In addition, in & other; Water cube & throughout; , national badminton hall, a large number of capital international airport terminal 3 of the 2008 Beijing Olympic Games project, many major technical problems in the created a number of invention patents, won several national awards. Steel structure industry in zhejiang province shows the manufacture level of steel structure in our country, the steel structure further ascension brand image.

In recent years, the steel structure in zhejiang wrote one classic spanning the great river north and south, following & other; The bird's nest & throughout; And & other Water cube & throughout; After Beijing Olympic Games venues, zhejiang steel structure in the construction of Shanghai world expo China pavilion and other engineering has been widely applied, zhejiang steel structure, with its excellent quality for the Shanghai world expo. In addition, the Shanghai hongqiao transport hub project, hangzhou bay bridge project, the new guangzhou railway station and many other key project construction are also used in steel structure in zhejiang province.

In 2009 China construction steel structure industry 30 strong enterprise, 13 is steel structure enterprise in zhejiang province. Among them, zhejiang seiko steel structure co., LTD., zhejiang southeast rack group co., LTD., zhejiang hangxiao co., LTD., hangzhou hengda steel structure industrial co., LTD., hong feng industrial group co., LTD and chao feng steel structure group co., LTD. 6 companies into the top 10. In addition, a total of 32 in zhejiang provincesteel structure engineeringTop honors for China steel structure projects with high quality gold award, China steel structure with 26 people get China steel structure excellent individual highest honor the national steel structure engineering project manager title.

Steel structure stand backbone of China to the worldAs world war ii economic rise, especially the economic giant iron and steel industry development

http://chinasteelstructure.blogspot.com/2013/03/steel-structure-stand-backbone-of-china.html

Steel structure products will develop into the era of low carbon building main bodysteel structure disgn Thought, rich sSteel structure workshop Work

Steel structure products will develop into the era of low carbon building main bodysteel structure disgn Thought, rich sSteel structure workshop Work, promote the development of the steel structure architectural aesthetics, the design conforms to the steel structure optimization plan. Steel structure optimization as an industry to research. Steel structure is not to say that the building size, or to use steel, but rather to rational use of steel, not steel structure steel structure buildings are built bunkers, must optimize the design. In addition, want to use emerging technologies promote the intelligent of steel structure building.

The state encourages the developmentSteel structure housing

Steel structure housingIs our country residence development direction. Steel structure building in China accounts for the proportion of domestic architecture is very low, less than 5%, while developed countries are more than 50%. Steel structure housing compared with the traditional structure of brick and concrete structure house, it's very light weight, energy consumption is also very low. If the steel structure of energy consumption and carbon emissions is 1, the concrete structure is about 1.4, and 60% of steel structure building after the demolition materials can be recycled.

Emphasize the overall residential concept. Semifinished product of energy consumption, especially the construction waste, co2 emissions impact is very big. According to the 2009 national residential quantity measure, carbon emissions reached 7.7 million tons. So, we emphasize should attach great importance to the whole of residential decoration, whole room is listed.

Steel structure building has a benefit, it is only when the house demolition less manpower and material resources, steel can be recycled. And use the large amount of cement concrete building, demolition, recycling is difficult. Japan and some European countries, even to reserve resources of iron and steel in construction. As a result, a large number of steel structure residence is also social storage steel the strategic resources of the effective ways.

Urban development and environment research institute Chinese academy of social sciences, said pan & other; Before the country has established five province 8 pilot city low carbon city, a lot of places all want to have pilot 'hat & rsquo; . The pilot and the nature of special economic zones, national preferential policies for pilot areas have not, now is an open economy, it is impossible to special treated differently. Low carbon economy should be the whole society, all the so-called targeted pilot is these places to do more. We must recognize that low carbon is a process, not step in place. In the long run, we must to go to this direction, but also to accelerate low carbon transformation, but now in some places the so-called zero carbon slogan, can say it is a sign of ignorance. Throughout the &;

& other; In construction, whether existing residential or new housing, housing total is far greater than the total amount of public use, housing is very important to the whole society of energy saving. We advocate in residential construction, the window wall area ratio should be decreased. Now many window outside his home area is too large, such as the big bay window, bay window, the energy saving is very adverse. Pioneered the use of external shading systems, renewable energy, especially solar building integration. To minimize the landscape water body design. Reduce residential building has no function of architecture and decoration, such as decorative wave plate, roof do it without any functional meaning, not only the cost is high, and very bad for the earthquake. Throughout the &; Commissioner of ministry of housing industrialization promotion center performance that LouNaiLin said.

Steel structure products follow the era demand

Construction of industrial transfer and mass transport facilities the explosive growth of demand for steel products has been the fact that does not dispute. Compared with traditional building materials and engineering materials, steel structure product has some specific advantages and make them under the time background of low carbon environmental protection have more comparative advantage.

First of all, all steel structure steel structure can be recycled, is recycled's new tallest building products. Second, the production is simple, generally in the specialized factory manufacture, can batch mass production, high degree of industrialization. Steel truss structure adopts the construction mode, more than 1 times quicker than the traditional construction method, construction period is short. And, more importantly, the ductility of steel structure is good, strong tensile, aseismic capacity than other building, is the strongest construction safety performance. The earthquake that struck the performance at home and abroad, has been fully validated.

Compared with the developed countries, our country's steel usage is still very low. 2008, the steel output of 21.8 million tons, accounting for 4.38% of the crude steel production. Steel structure in developed countries accounts for the proportion of crude steel output in more than 10%. British steel structure in the residence of multi-storey building market share increased from 33% in 1980 to 70% of the early 21st century; In single layer of residence building, steel structure occupies 98% market share.

Application domain block in the largest residential areas, the steel structure housing the main reason for the low penetration and poor residents' acceptance for this type of housing, the cost is not the main reason. At the same time,Steel structure fire protectionower, sound insulation effect of defects directly affects the user's utility, and its advantages compared with the user's relevance and utility. This leads to steel structure residential market share is small. But, the fire and sound insulation problems can be solved, as long as use metope material sound insulation problems can be solved. Fire protection problems through the use of new steel material (different alloy), coating, the steel structure can solve. If these two problems can be resolved on the premise of cost does not increase, so the steel structure housing market can be expected.

Shenzhen universiade center steel shed was completed in March of this yearIn order to ensure the successful convening of the summer universiade in 2011

http://steelwarehouse.blogspot.com/2013/03/shenzhen-universiade-center-steel-shed.html

NongYunHui main stadium heavy steel fabrication main body project

NongYunHui main stadium heavy steel fabrication main body project completionFrom the 7th national NongYunHui main stadium projects department learned that NongYunHui main stadium main body construction has been completed. At present, has entered a stage of floating roof installation and curtain wall masonry construction.

On December 9, the reporter sees in the main stadium construction site, the spectacular stadium stands proudly, all show the majestic of nanyang new landmark. On the top of the dozens of meters high, the workers are installing metal floating roof "in extremely good fortune". Buildings around, the workers in the dismantled scaffold, some on masonry walls.

In the main stadium, 453 meters high, including a 400 meters runways and standard of football played, the audience, auxiliary, practice field and register at room, can not only meet the requirements of national comprehensive and individual international events, sports can also undertake the theatrical performances and other cultural activities.

rojects department, head of site construction Huang Wei tells a reporter, NongYunHui main stadium construction time is tight, difficult, high technical requirements, their use of new materials, new technology, new technology, thereby improving the quality of the project.

According to Huang Wei, main stadium are huge, with a total construction area of 420000 square meters, the cost of steel 9000 tons, 50000 cubic metres of concrete; Building structure is complicated, only, there are more than 800 posts and beams hundreds of root, plus top mounted with floating roof, node location, more complex support system; The overall appearance is oval, streamline modelling, more increased the difficulty of construction. To solve these problems, construction of prestressed steel strand, prestressed steel reinforced concrete adopted slow coagulation, such as new technology. Among them, in more than 800 columns, has 148 slow condensation of prestressed steel strand is adopted new technology. Each strands to the limit of the tolerance of 26 tons, design carrying 19 tons, 1 the columns up to use the 24 root steel strand, greatly improving the pillar support ability.

Huang Wei said: "the principal part of the project after completion, is a large quantity, in the late time is more urgent. We will continue to carry forward successive style, stepping up construction, to hand in a satisfactory answer on time to the people in the city."

"Wuxi first high-rise" prefab buildings 339 meters next year commencement

http://chinasteelstructure.blogspot.com/2013/03/wuxi-first-high-rise-prefab-buildings.html

Beijing-tianjin-hebei experts workshop steel structure technologyBy China steel structure association expert committee

Beijing-tianjin-hebei experts workshop steel structure technologyBy China steel structure association expert committee, the Beijing construction group hosted the beijing-shanghai high-speed railway, tianjin west railway station station building steel structure technology exchange meeting concluded recently in tianjin, from more than 80 of beijing-tianjin-hebei China steel structure association expert committee of experts attended the meeting. After the meeting, the delegates to the construction of tianjin west railway station.

New tianjin west railway station to the construction of the beijing-shanghai high speed railway is the five one of railway passenger transport hub, is designed, the beijing-shanghai high-speed railway, tianjin qin the beijing-tianjin inter-city railway and tianjin railway into the hub station of tianjin, the station building facade to lean forward the sunrise full of electromotive force of the arch cloud image performance, implies the development of tianjin city to a better future.

According to Beijing construction group of tianjin west railway station project department chief engineer Chen Shuohui is introduced, and the central station of tianjin west railway station USES the pile foundation, track layer for steel pipe concrete column and frame structure of the strength of reinforced concrete beam, roof part adopts square grid arch roof, auxiliary building with pile foundation, reinforced concrete frame structure, the canopy is composed of concrete-filled steel tube column and steel beam frame structure system, the viaduct with concrete filled steel tube columns, steel box beam structure. In construction, Beijing construction group of tianjin west railway station to the tight project department take the positive measures to solve the complex, the safety pressure, construction technology, engineering quality requirement is high, need coordination of the department of many difficulties, make tianjin west station station project main structure smooth caps on November 18.

According to Chen Shuohui, tianjin west railway station to station building roof of square grid type truss structure is novel and chic, its height and span of built and planned in China's railway station in the forefront, steel structure construction is very difficult, so in the installation construction scheme selection of organized many experts. At high altitude, accumulating sliding, overall improve construction scheme, such as cooperated-builing parties had a heated argument, eventually Beijing construction group and insist on using both sides adopt overall increase in the middle of scattered, recognised by the ministry of construction schemes, after implementation to achieve project goals. Used in the process of construction of the prestressed cable are ascending segment deformation control; For the whole process of stress and strain monitoring of steel structure upgrade; Using laser scanning technology auxiliary installation, close its mouth to multiple docking ports at the same time play an important role.

Hall site protection shed supporting steel structure Avoid excavation and pile on construction sites

http://chinasteelstructure.blogspot.com/2013/03/hall-site-protection-shed-supporting_17.html

Steel structure should be independent category in the construction industrySteel structure belongs to the construction industry

Steel structure should be independent category in the construction industrySteel structure belongs to the construction industry, but has great differences with the traditional construction industry, it is steel structure construction and machinery industry, armed with modern manufacturing is the construction industry, which is also the highest levels of science and technology in the construction industry branch, is the representative of advanced productivity in the construction industry. Steel structure and the traditional construction industry is the main difference between its own unique characteristics.

A, the material aspect. Traditional construction mainly use civil to soil as raw material made of brick and tile, with lime, calcined limestone production prepared using sand and cement concrete, with steel and concrete made of reinforced concrete member; The materials of steel structure, unlike traditional construction using a large number of local materials, but provided by modern metallurgical industry of all kinds of steel, aluminum and various kinds of alloy, is the product of modern industry. There are all kinds of flux and the modern chemical industry production of all kinds of coating materials, plastic, adhesive, etc. High precise steel structure material standards, inspection requirements, strict storage, transportation, processing conditions, the most need to mechanized operations.

Second, structure installation. Basic production in the factory, shipped to the site after the installation, by welding or bolted to complete the main structure. Due to production in the factory, can make use of modern manufacturing all kinds of processing methods including welding, bolting, cast steel, hot bending, cold bending, hot rolling, cold rolling, etc., can make use of various testing methods including physical and chemical testing, ultrasonic testing, radiographic, magnetic particle flaw detection, etc., make more accurate processing components, quality more assured.

3, high measurement requirements. General civil size error is measured in centimeters, and steel structure in millimeters, if not reach requirement, can not be successfully installed, mandatory will produce a great initial stress, brings to the structure of the hidden dangers.

Four, structure related to materials science. All kinds of processing technology, various detection techniques, various assembly technology, welding technology, such as laser welding, high frequency welding, electroslag welding, gas shielded welding, etc., all associated and modern science. Steel structure is precise structure, modern architecture is not only a simple 3 d, and consider the connection of multiple directions, need CNC machine, need a computer connected to the Internet. High quality requirements for employees, to master certain professional and technical knowledge and possesses certain skills.

Five, the structure of the enterprise to have a design team. From the construction drawing to detail view can make the workshop workers read the details, need to deepen the design, design personnel is indispensable. General construction enterprises mainly steel samples, high levels of reinforcing steel bar worker master can take this job, so it is not professional design personnel. Steel structure enterprise requires full-time designers. Steel structure enterprise have a testing team, to physical and chemical raw materials the reinspection, guarantee the quality of raw materials conform to the specifications and design requirements, carried out on the weld inspection, to ensure the weld quality can meet the requirements of the specification and design, so still have to build their own physical and chemical laboratory, or distributed outside the test related job.

Is the steel structure is to emphasize the green building, its resources can be repeated use, conform to the construction of resource saving and environment friendly concept, in line with the development of circular economy construction of the policy, countries are strongly encouraged to use the steel structure technology. However, in the following several problems existing in the practical work.

First of all, general contracting qualification. At present steel structure supplier Only have steel structure professional contracting qualification, many mainly steel structure engineering, also by the civil engineering general contracting company, even if the project is based on reinforced concrete, only controlled by the civil engineering. Sometimes there will be a large steel structure company to a low level of civil work, this is very reasonable, also bring many bad consequences. At the same time, money, schedule, quality, time limit for a project are generally controlled by the contractor, which makes steel structure enterprise is passive, the steel structure of advanced nature are often submerged by the backward management and system. Civil engineering don't understand the steel structure, in order to catch up, occurs frequently because of the support system is not installed domino type of collapse. Steel structure of the production efficiency is higher, there should be a higher profits, but now the steel structure industry also become like civil micro profit, less than 5%, can only rely on the quantity growth to develop themselves, this is unsustainable.

About, which is mainly composed of steel structure engineering, steel structure enterprise shall have the qualification of general contract, we have called on for years, under the calling for and strive to partially adopted in some places, last year also mentioned in the new standard of qualification level 1 to level 2 qualification of steel structure construction company can contractsteel structure engineering, can overall contracting, hope this problem can be resolved as soon as possible.

Second, the industry classification problems. Steel structure when undertaking construction projects, as part of the construction industry, belong to the competent construction department, from the security quality, qualification evaluation, personnel training, revenue management, etc all included in civil engineering series, and place on them as a manufacturing company, also want to statistics, also want to pay tax, are subjected to supervision and technical supervision, that can be used to make products for inspection. Attribution is not clear, bull management, bull charging, disoriented, cause steel structure enterprise burden.

Steel structure incorporated into civil engineering system, due to the steel structure and civil engineering has a larger difference, qualification evaluation, personnel training and the steel structure, training out of the five official can adapt to the corresponding work of steel structure, the project manager also can not adapt to steel structure engineering In the management. Mechanical professional class from the project manager is very difficult to take an examination of the primary constructor, even civil birth long engaged in steel structure engineer due to not familiar with construction is also difficult to test, to talent pool and the growth of the industry development has brought great obstacles.

Third, the steel structure professional talent shortage problem. Because of construction steel structure is a new industry, is different from the original machinery factory production of steel structure, such as boiler, steam turbine frame or road bridge, also different from traditional civil engineering industry, so the steel structure enterprise is more special than a simple factory or construction company, which is more challenging, more risk. Purely mechanical or civil &construction speciality to graduates, the beginning can quickly adapt to the steel structure of the technical work, to complement each other, after a long time to adjust and to learn, can work well. Diploma of lack of knowledge of manufacturing process, don't understand welding, make the elaboration of figure do not conform to the requirements of the process, and is engaged in the machinery of the lack of basic knowledge of architectural structure and architectural mechanics, clear of as parts of components, but also on the overall building a lack of understanding the formation of final assembly. If the school can directly to cultivate these two aspects combined with very good people, will slowly solve the problem of steel structure professional talent shortage.

Above all on steel structure industry development fast lane of a few questions, investigate its reason, in the end, mainly steel structure in construction field or industry also is not an independent category, can not get the attention of the relevant departments and care, without government support on policy, not as a teaching professional to train specialized personnel. For this purpose, the steel structure should be a separate category, self-reliance in construction. Steel structure should be clearly belongs to the construction industry, the competent administrative department should be responsible for housing and urban-rural construction of the government organs at all levels. Steel structure shall be as an independent category, the construction industry statistics and industry training, industry planning and assessment of qualifications, including registered construction engineer and related the builder, quality engineer, resposible and welders of safety personnel, materials, and key jobs. Should universities steel structure in civil engineering major, training applied talents suitable for steel structure enterprise work. Unified tax, adopt preferential policies conducive to the development of steel structure industry. Steel structure company to give priority to with the steel structure engineering should have general contracting qualifications, for conveying steel structure enterprise culture and the corresponding management personnel and technical personnel. In addition, the party should try to put the steel structure engineering drawing alone, make steel structure enterprise in bidding.

Hall site protection shed supporting steel structureAvoid excavation and pile on construction sites

http://chinasteelstructure.blogspot.com/2013/03/hall-site-protection-shed-supporting.html

2011 steel structure huge growth spaceCompared with the traditional building

 2011 steel structure huge growth spaceCompared with the traditional building materials and engineering materials, steel structure product has some specific advantages in the era of low carbon environmental protection has more comparative advantage. Guotai junan researcher at the Korea it thinks that the market performance of steel structure industry in 2011 is likely to copy 2010 developing track of decoration industry. Under such expectations, the steel structure industry segment products for each listed company, and has become a concern.

Construction steel structure project, chongqing steel structure steel structure can be divided into space and light steel structure. At present the a-share listed company's business mainly concentrated in the field of construction steel structure. In general, chongqing steel structure and spatial steel structure is relatively complex, the construction is difficult, for the company's design capability, workers, field assembling and welding ability, as well as the steel structure parts production capacity requirements are higher. According to understanding, cultivate a skilled welder's or operator at least 5 years. Because the construction is difficult, the owner to the contractor's past performance, qualification, and technical requirements are high, you would like the company has strong technical innovation ability and the large number of skilled welder and assemblers. In addition, the average investment of chongqing steel structure and spatial steel structure is larger, the mat endowment and earnest request also is higher. In general, the space steel structure and sintering structure due to technology, capital, qualification and performance requirements of high lead to industry barriers is higher, so the market competition is relatively moderate. And the light steel structure industry low barriers, market competition is intense. Huatai securities in a research report, the next three years, China's steel demand should remain in industrial buildings, Bridges, railway stations, rail transit stations, airports and stadiums, theaters and other public buildings.

Construction steel structure of the varieties of another big space steel structure are mainly applied in large style venues, airports, railway stations and other public facilities. Generally speaking, the span of more than 20 meters are used space steel structure steel structure architecture. Most representative of space steel structure buildings must belong to the bird's nest. During the expo venue construction, space steel structure also has been a large number of applications. The France pavilion steel structure engineering By seiko steel structure project department construction group, Shanghai.

"Space steel structure in recent years after the Olympic Games, the large-scale application of expo, whether has reached the peak demand, this problem is still not conclusive, because its demonstration effect may be able to drive the wider field of applications." Southeast rack chairman secretary Tian Jinming in an interview. Tian Jinming thinks, at present, the economy is relatively developed, the coastal areas of financial services gradually mature, the vigorous development of commercial real estate, office real estate, etc. The demand for steel products has been started.

Guotai junan researcher has also argued that, from the point of effect after the games, the bird's nest (48000 tons of steel) stunning appearance to a demonstration role in the national stadium building, stadium building, for the most part, are now a steel structure buildings. Especially as numerous construction of high-speed rail, high-speed rail station new pull function on the steel structure product demand growth also has sufficient imaginary space. According to reporter understanding, the wuhan HSR station adopted large-span space steel structure.

However, the greatest demand in steel structure products east China market, product demand structure appeared slight variations. "East China market from the point of the sales of company in the recent 3 years, steel structure products sintering steel demand growth should be the fastest." Tian Jinming introduces to the reporter. Another company is located in the east China jinggong steel structure of listed companies in 2010 and a half annual report disclosure of detailed data also showed that the reporting period light steel structure products, space steel structure products business income is 730 million yuan, 310 million yuan, respectively reduced 16.74% and 30.38% respectively than the same period last year, many high-rise steel structure products business income is 770 million yuan, increased by 68.72% year-on-year.

In addition, compared with commercial real estate, integrated light steel structure residence is still emerging in our country construction field, the domestic industry norms and standards in this regard is not yet mature, marketing is a process of consumer recognition and acceptance. Domestic first a steel structure of listed company, hangxiao also disclosed in its annual report in 2010 and a half years, the company investment in the field of residential steel structure, have yet to generate economies of scale.

Listed on December 17, 2010, light steel structure, although the scale of the enterprise has a large gap, but likely with the help of xinjiang in the next few years of explosive growth of investment in infrastructure, access to relatively independent broad space for development.

Korea has predicted that xinjiang steel demand in 2011 will reach 2011 tons. At present, the construction department for the record in the autonomous region of xinjiang in 163 steel structure enterprises, foreign enterprises, 51, accounts for the proportion of the total steel structure enterprises is very small. Market at the same time, compared to the mainland market, xinjiang steel structure processing and installation of products is higher than 300 yuan to 500 yuan per ton. Also, like cement, restricted by sales radius, the steel structure industry has the characteristics of local sales. Steel structure enterprise in the process of foreign expansion, usually adopt the new steel structure processing base or entrust the local steel structure enterprise processing, etc. Light steel structure previously disclosed, seiko steel structure, hangxiao, Shanghai champions league such as large steel structure companies from the developed areas in xinjiang region to undertake multiple projects commissioned by both light steel structure steel structure processing. Company said, from installation, light steel structure with domestic leading enterprises at the same level. Korea has analysis, due to the relatively self-contained area characteristic in xinjiang, as the region's leading enterprises in xinjiang, light steel structure is likely to fully enjoy the boom brought about by the large-scale development in xinjiang area and special geographical location with limited competition.

Although steel structure market future development space is enormous, but there are analysts hold the prudent attitude towards this. Beijing-based researcher in an interview with reporters, steel structure products sales net interest rate is closely related to steel prices. Since the end of 2008, steel prices fall and is hovering low all the way, for the steel structure enterprises Maori improve play a role. "In fact, the 2010 steel price is close to its lowest level in history. This role to the promotion of enterprise profit is considerable." The source said. Current product pricing mechanism of common steel structure industry for "steel prices * (1 + reasonable profit margins)" mode, the steel price movements can be passed on to the downstream customers. But steel prices or at high, to a certain extent will make manufacturers increased liquidity demand, at the same time, demand for steel structure product growth can also cause inhibition.

Overall, steel structure market facing the external environment is very delicate, infrastructure investment growth fell back, although in the future new projects to reduce the risk of public construction market, but the industry transfer and industry upgrading industrial building market is buoyant. Cost of raw materials such as iron ore prices driven steel price increases in a certain period, but the resulting real estate regulation policy and from the perspective of demand, the steel price. "Of the steel structure industry chain enterprises, high-end products production cost control ability, is the enterprise in steel prices volatile, stand out against the background of the key." One industry source said.

250 million investment in building steel structure stadium

http://chinasteelstructure.blogspot.com/2013/03/250-million-investment-in-building_13.html

Mansion deep railway south Australia steel structure bridge was expected by the end of next yearShantou to promote a new round of economic development

Mansion deep railway south Australia steel structure bridge was expected by the end of next yearShantou to promote a new round of economic development, and further perfect the shantou traffic infrastructure construction, construction of regional central city, shantou municipal party committee, municipal government attaches great importance to pay special attention to the long-term development of a batch of shantou is a matter of infrastructure construction, to this year, shantou shantou mansion deep rail segments of shantou, shantou jie high-speed, south Australia, bridge and other key project construction are periodically have made great progress.

Mansion deep railway chenghai section of main body available

Mansion deep railway project connected to the pearl river delta and hercynian economic zone, shantou located right in the middle of line and project progress speed of railway linking is very important. After about a year and a half at the time of construction, shantou chenghai mansion deep railway section of the principal part of the project was successfully completed all fronts during the National Day. At present, the construction unit is pouring deck on both sides of the protective wall, paving bridge deck waterproof layer and protective layer, and installation of bridge expansion joints bridge deck structure engineering, to ensure that completed before the end of the bridge deck system, provided a basis for railway track-laying February next year. To the end of September, a mansion deep shantou railway section of the total investment of 1.33 billion yuan, accounting for 66.5% of the total investment plan. The bridge engineering have been completed more than seventy percent of quantities and tunnel engineering, more than 80% of the complete quantity, subgrade engineering 72.0% complete. Is expected by the end of next year, mansion deep railway will be built.

South Australia bridge deep water pile caps is complete

As the end of August last sea bridge deep water area of south Australia is complete, the construction of the longest cross-sea bridge in guangdong province south Australia bridge engineering construction has the leap type development. At present, the construction founder seize the favorable season, tension pier of the upper structure construction. In march next year, bridge paving engineering will be officially launched. According to the transport sector, south Australia to bridge construction in the third quarter of this year, the total investment of 819 million yuan, accounting for 74.4% of the total budget investment. DeJianCheng open to traffic next year.

Three main tower erqi Yangtze river bridge steel structure will all meeting tonight

http://chinasteelstructure.blogspot.com/2013/03/three-main-tower-erqi-yangtze-river.html

givenSteel structure housingThe construction speed is quick

Two sessions: the steel structure housing boomIn 2011 & other; Two sessions throughout the &; , the people's livelihood engineering as representative, the commissioners hot topic. In the people's livelihood projects, the most concern is the ordinary housing problem. This year, countries will intensify efforts to promote affordable housing construction, related to the industry proposal, given Steel structure housingThe construction speed is quick, seismic performance is strong, and many other advantages, in the construction of affordable housing, can be used in large amounts Steel structure housing. Similarly, deputy to the National People's Congress, the central committee, vice chair of council, the city architectural design institute, tianjin deputy chief engineer Zhang Zhaoyi representative also suggests that the high strength, good ductility, light dead weight, technical precision, high standardization degree, good seismic performance of steel structure residential promoting, at the same time suggested that the government in taxes, and form a complete set give appropriate preferential policies to encourage the development of enterprises to actively promote steel structure housing, by gradually instead of brick and reinforced concrete structure residence housing structure. This can ensure the security of people's life, also can promote low-carbon green building promotion.

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.

stell frame stereoscopic parking lot will become the marking of the city

http://chinasteelstructure.blogspot.com/2013/03/stell-frame-stereoscopic-parking-lot.html