2013年3月31日星期日

"Technical specification"

"Technical specification" light steel structure residential steel structure housing development of our country play a positive roleOur country the first about technology in the field of light steel structure housing procedures & ndash; & ndash; "Technical code for light steel structure housing" will be held on October 1. The code will come to our countrySteel structure housingDevelopment play a positive role. Light steel structure housing development present situation and prospects its future development will bring what impact to traditional housing & hellip; & hellip;

According to authoritative sources, construction steel structure industry will drive the rapid development in our country, the market demand will grow at a faster speed. According to understand, light steel structure housing development has pilot in all parts of the country, there are a variety of low-rise, multi-layer and high-rise design scheme and examples. Because of the light steel structure with large span and large space, the space use is flexible, fast construction speed, seismic performance is good and can be recycled, some experts predict, it will to our country the traditional pattern of residential structure has a certain impact.

Light steel structure housing share remains to be improved

Since the mid - 1980 - s, China began to imported from abroad, a large number of light steel structure building system. This kind of structure form of steel structure building is a gantrysteel frameDerived on the basis of the various forms, containment system for color pressure plate, composite plate and light body material is given priority to, such as heat preservation cotton has formed, including lighting, ventilation, sealing and so on, into a new system of steel structure building system, known as light steel structure building.

Senior industry experts that define the light steel structure housing & ndash; & ndash; It mainly refers to galvanized light steel keel for the building of housing structure, this structure more abroad to 1 layer, two layer of small residential single family type, is also useful to the construction of multi-family segment under 6 layer, the significant differences in the use the thick wall steel structure such as H section steel, thus known as light steel structure housing. Light steel structure residence has a good performance, light weight, high degree of factory, construction speed is quick, the advantages of small labor intensity, nearly 30 years, light steel structure housing gradually developed countries in Europe and the us have formed a set of very mature technology.

In recent years, the light steel structure building, with its strong economic, technical and safety, the emergence in the field of domestic residential construction, and formed a certain impact to traditional reinforced concrete residence, after nearly 10 years of development, light steel structure residence has already formed a considerable construction market.

The personage inside course of study analysis, light steel structure residence has got rapid development in our country, a variety of factors. First of all, the light steel structure residence is a kind of environmentally friendly building. Due to its extensive use of new building materials such as steel, construction process for dry operation, to avoid the brick, stone, cement, sand, such as environmental pollution, and use most of the light steel structure residential building materials can be recycled, seldom produce construction waste, is a kind of sustainable architecture. Second, light steel structure housing comprehensive cost is low, lower than the same concrete building construction area of about 1/3; The construction speed is quick, only in concrete construction for two-thirds of the time. Again, the light steel structure housing with good ductility, can design the unique architectural modelling, give a person with an informer new impression. Finally, because of its construction season without limit, can reduce the investment in real estate business cycle, make its rapid turnover of funds, reduce unnecessary capital risk and bank interest, for its lucrative.

Light steel structure housing because of these advantages, the current has been applied in many domestic cities, but look from the overall distribution of the real estate market, the share of light steel structure residence is still small, even less than 1%. The personage inside course of study thinks, the development of an emerging industry is always a period has been generally recognized by the market and acceptance process, no matter from the perspective of national economic development, or from the point of view, for the sustainable development of housing industrialization and the construction of light steel structure residential prospects are predictable.

Light steel structure building enterprise development plays an important role

The personage inside course of study introduces, light steel structure residence is introduced, the our country, in the period of high growth market and are in urgent need of light steel structure, so many foreign steel companies poured into the Chinese market, they have a lot of investment, currently occupies the domestic light steel structure nearly half of the market. At the same time, the light steel structure of the domestic enterprise also grow in the competitive environment, they not only have light steel structure production and installation capability, but also have a certain design and research and development ability.

Industry insiders believe that light steel structure building enterprise development plays an important role in the industry, light steel structure construction enterprises for marketing strategy, technology research and development direction, the assurance of talent employment, etc, directly about industry development prospects. Light steel structure construction enterprises in our country belongs to the emerging industry, the enterprise since its birth, not only faced with the international standard of steel structure construction market, but also to face the financial markets, technology markets, labor market, information market, people need more specialized research industry trends, flexible coping for enterprises.

Various forms in our country, light steel structure construction enterprises coexist, both the universal enterprises, collective enterprises and individual enterprises, sino-foreign joint ventures, cooperative enterprises, independent business within the territory of our country foreign owned enterprise and to the output of light steel structure building products outside the enterprise. At present, into the intense competition in the industry. Different types of competition between enterprises is mainly through technical, product, marketing and services to compete for customers and markets, in addition, enterprises in talents, capital and raw materials, etc, also launched a fierce competition. Through proper competition between the enterprises, in the external, light steel structure construction enterprises have gradually formed the interests community. Under such market background, requirement enterprise not only consider their own interests in the business, also need to consider stakeholders, such as customers, suppliers, vendors and the interests of the collaborators. If the relationship is bad, will bring to enterprise management difficulties.

In addition, light steel structure construction enterprises need to moment in the face of fluctuations in the price of the steel structure and the impact of the market is not standardized and so on.

Compared to European and American developed country, light steel structure construction enterprises at present, the overall level of light steel structure construction enterprises in our country is low, still need to improve, improve, thereby narrowing the gap with foreign enterprises, to better promote the development of industry.
steel structure engineeringHelp the solid building expoThe expo in the lot of the venues are wonderful clips. And the most impressive
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2013年3月27日星期三

Steel structure construction of price warAlong with the pace with international practice

Steel structure construction of price warAlong with the pace with international practice, the span and the project cost reform is more and more deep, low bid is accepted by more and more construction enterprises and application of Steel structure construction to play & other; Price & throughout; , know what is in the true sense & other; Low price & throughout; , how to reasonable price, how to deal with low price bidding is more and more important.

So, what is the steel structure construction hot & other; Lowest bid & throughout; ?

The bidding law of the People's Republic of China article 41, the winning bidder's bid should & other; Can satisfy the substantive requirements of the tender documents, and the evaluation of bids the lowest price; But unless the bidding price is lower than the cost & throughout; .

& other; Throughout the review & low; , also is what we usually call & other; Reasonable low price & throughout; , it should be a bidder on the premise of meet the substantive requirements of the tender documents in combination with their own power to make the price is not lower than the cost price of science, the science quotation is the best balance of contradictions.

But because a lot of steel structure construction enterprises are eager to bid, crossed this balance, also late and caused a lot of project funds inadequacy, was forced to shut down; Even jerry building disaster. Boil down to, is the enterprise bid prices and offer quality don't have a good balance. So, construction to play price war, fundamentally speaking, must be to establish a correct concept of enterprise management.

On the one hand, the profit as the purpose of the enterprise management, it is necessarily need to make sure that. Since profit is the enterprise survival fundamental guarantee, the enterprise can not blindly pursue & other; The winning honor & throughout; , otherwise will one day emerges because of living beyond its means. So, in the face of the peer using unreasonable low price below cost for competition, the enterprises can stand straight, sit, stick to their reasonable bidding price.

On the other hand, the steel structure enterprises can occupy enough in the market of another important factor is the quality, if you don't have enough quality, believe that even if the bid invitation unit to be able to recognise, the final property users will not buy it. Construction quality problem caused by the consequences is not buy clothes can't wear that simple fault, throughout the world construction industry, any cause social hot spots, removal of different buildings, the rest are shoddy construction and the serious consequences caused by.

Construction must find on price & other; Profit & throughout; And & other Quality & throughout; These two elements in balance, companies need to ensure that the interests of the highest quality of services rendered to the customer.
Northeast's first civil Steel structure warehouse next mayThe autumn sunshine, tall tower crane is stretch long arms
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2013年3月26日星期二

steel structure engineeringTianjin east port logistics warehouse

steel structure engineeringTianjin east port logistics warehouse Recently, we have heard from tianjin port, the first seven months of this year, the east port has been completed, with the total investment 2.9 billion yuan, the annual total amount of investment is expected to more than 6.5 billion yuan, accounting for half of the total investment of the tianjin port, attract outside investment will exceed 1.3 billion yuan.

In the city "level on growth, tough problems," activities, the tianjin port put forward starting from the second half of last year, with three time of 180 days, concentrated to play three big battle, to further speed up the east port development and construction, do well the dongjiang bonded port area fully develop the functions. So far, the first battle of the east port development and construction has been fully completed, battle of the second and third in advance, the dongjiang bonded port area phase I and phase ii logistics processing zone comprehensive infrastructure construction completed, logistics processing zone phase ii warehouse pile foundation construction is completed, part of the warehouseSteel structure construction. New warehouse by the end of this year, will be cumulativeworkshop374000 square meters, storage area of 610000 square meters, 2.15 million square meters of ground treatment and the bonded port area phase ii needed to start the road infrastructure construction.

At present, tianjin east port development and construction, accelerate to ensure logistics processing zone before the end of the second phase of 178000 square meters, 440000 square meters of warehouse storage area as well as road, pipeline, purse Seine, doors and other infrastructure is completed; Continue to intensify efforts to promote the eastern view coast, southern cruise home port area development and construction, capped years five star hotel realized, financial and trade service center construction of basement, seaview resort hotel complete pile foundation construction, subject completed, boke yacht leisure centre with yacht berths, 71; Continue to accelerate the north project, the cofferdams construction apartment overlooking the sea hin and Europe, Africa, road infrastructure and related engineering; Continue to pay special attention to the other area major projects in Hong Kong, completes the project early and continuous work, promote external investment project to speed up the progress, ensure to complete annual investment.


Flat land and building steel structure simultaneously Long Yanlong

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2013年3月25日星期一

Guangzhou Asian games stadium steel structure construction technologyIt is understood that the guangzhou Asian games will set up a total of 53 venues and 19 training venues

Guangzhou Asian games stadium steel structure construction technologyIt is understood that the guangzhou Asian games will set up a total of 53 venues and 19 training venues, formation of the five group of Asian games venues, including 12 new venues. Asian games project belongs to the group of large and complex project, the structure is novel, strange shape and construction is difficult. Venue has special subject structure and outward appearance modelling design, summed up the application of new technology is of great significance.
Asian games sports complex engineering, tennis center, nansha gymnasium construction adopted many new technology. Among them, & other; Variable curvature of large area facing concrete wall template technology & throughout; , & other Double layer hub-and-spoke throughout a string of structural steel roof truss of prestressing technology & space; Have passed the identification of scientific and technological achievements, respectively, has reached the leading domestic level and the domestic advanced level, in order to write these two technologies as the core technology was named the 2009 guangdong provincial method the construction methods.
The yuncheng comprehensive stadium & ndash; & ndash;Steel structure constructionTemplate technology, clear water concrete wall
Guangzhou yuncheng highlight is the comprehensive gymnasium projectSteel structure constructionApplication, manufacture and installation of the hyperbolic annular space truss technology. Venues by comprehensive hall, gym, history museum and stroll the air corridor, a total construction area of 22126 square meters. Appearance to & other; Flowing ribbons & throughout; Scheme as building design concept, with elegant modelling symbol games friendship link, with the raft of Asian peace meaning emphasizes the close communion with the pearl river water system, express the poetry of lingnan landscape intention.
Venue subject for the cast-in-situ reinforced concrete frame structure, roof system using space combination steel truss structure, space combination truss span of 99 meters. Comprehensive gymnasium project total steel quantity reached more than 11000 tons, the component number more than 20000 pieces, complex structure of node, the component type, pipe truss, box girder, the cast steel nodes, H truss, etc. The modelling of steel structure is more complex. Gym steel structure modelling like turtles. Modelling of complex shape such as dolphins, steel roof system consists of steel column outer cylinder, inner strength sex column and primary and secondarysteel frameComposition. The project size is big, complicated structure, high accuracy requirement. Hyperbolic annular space truss production and installation, in the process of unloading will cause the structure stiffness change, have distribution of gravity changes. Engineering using digital simulation technology, the organic combination of computer and the traditional production process, solving the hyperbolic annular space truss production and installation of high accuracy requirement of the construction problem.
The gymnasium is another innovation of yuncheng area facing concrete wall template technology application. The building facing the characteristics of the concrete wall is concrete wall combined with peripheral changes the shape of the buildings, by multiple arcs in different curvature wall section and straight wall segments. Design requirements to achieve the effect of concrete wall. How to solve this problem? Project department according to the variable curvature area facing the construction characteristics of concrete wall and self innovation design is a set of targeted combination frame arc formwork supporting system, and make effective measures to solve the variable curvature of large area facing the perpendicularity of the concrete wall and the curvature of the control, the control of reinforced protective layer and the wall thickness, the facing concrete pouring, vibrating and leakproof slurry, etc.
Nansha gymnasium & ndash; & ndash; Double spokes space on a string of structural steel roof truss first applied in China
Double spokes space string structural steel roof truss, do not know of any cases of application in China, the prestressed construction also have no successful experience to draw lessons from. Nansha gymnasium with a total construction area of 30265 square meters, building a total height of 29 m, set the audience more than 8000, adopt the structure of concrete and steel structure combined with. Basis using prestressed pipe pile, concrete frame structure is used in the first layer and the stands roofing system for prestressed SuoGang structures, envelope mainly adopts hidden frame, glass curtain wall.
Double layer hub-and-spoke space string structure is developed in recent years a new type of large-span prestressed steel roof truss structure, steel roof truss by outside, inside two layers of a diameter of 98 meters, 41.6 meters circular pieces of string structure superposition. Steel roof truss in prestressed applied before, stiffness is insufficient, is not a stable structure, must build the temporary support system of steel roof truss is fixed. Finally, the project department after many arguments, adopted the external layer 2 batch 4 batch, to lining, each batch 9 steel cable tensioning schemes at the same time to succeed.
Construction and new technology like this: the Asian games tennis center project adopts double circular modelling of space combination inclined column construction technology, and new type wall materials of polystyrene particles insulation mortar construction technology, air source heat pump water heating technology. Asian games diving USES the new technology of high side whipstitch aluminum magnesium manganese outside curtain wall; Steel structure construction safety efficient integral hoisting method is adopted, and so on.

The double helix of blue white alternate with swimming, diving, shape looking like hakka tulou tennis center & hellip; & hellip; Guangzhou Asian games venues, new wins a sure-fire splash. Combines the modern design idea, construction technology in the integration of the Asian games construction projects is a stage, is also a window. Architectural, structural, physical process and other professional knowledge, need to various professional integration and the macroscopic grasp, in the actual operation process encountered difficult and endless. Test of large-scale construction is the construction technology, and promote the technological innovation of construction industry in China. ,


Flat land and building steel structure simultaneously Long Yanlong

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2013年3月22日星期五

steel structure Tianjin east port logistics warehouse

steel structure Tianjin east port logistics warehouse Recently, we have heard from tianjin port, the first seven months of this year, the east port has been completed, with the total investment 2.9 billion yuan, the annual total amount of investment is expected to more than 6.5 billion yuan, accounting for half of the total investment of the tianjin port, attract outside investment will exceed 1.3 billion yuan.

In the city "level on growth, tough problems," activities, the tianjin port put forward starting from the second half of last year, with three time of 180 days, concentrated to play three big battle, to further speed up the east port development and construction, do well the dongjiang bonded port area fully develop the functions. So far, the first battle of the east port development and construction has been fully completed, battle of the second and third in advance, the dongjiang bonded port area phase I and phase ii logistics processing zone comprehensive infrastructure construction completed, logistics processing zone phase ii warehouse pile foundation construction is completed, part of the warehouseSteel structure construction. New warehouse by the end of this year, will be cumulativeworkshop374000 square meters, storage area of 610000 square meters, 2.15 million square meters of ground treatment and the bonded port area phase ii needed to start the road infrastructure construction.

At present, tianjin east port development and construction, accelerate to ensure logistics processing zone before the end of the second phase of 178000 square meters, 440000 square meters of warehouse storage area as well as road, pipeline, purse Seine, doors and other infrastructure is completed; Continue to intensify efforts to promote the eastern view coast, southern cruise home port area development and construction, capped years five star hotel realized, financial and trade service center construction of basement, seaview resort hotel complete pile foundation construction, subject completed, boke yacht leisure centre with yacht berths, 71; Continue to accelerate the north project, the cofferdams construction apartment overlooking the sea hin and Europe, Africa, road infrastructure and related engineering; Continue to pay special attention to the other area major projects in Hong Kong, completes the project early and continuous work, promote external investment project to speed up the progress, ensure to complete annual investment.


Steel structure warehouse China brand 2010 international summit

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2013年3月20日星期三

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


Steel structure stand backbone of China to the worldAs world war ii economic rise, especially the economic giant iron and steel industry development, formationThe steel structureIndustry base. Post-war industrial and civilian usebuildingDemand, make steel structure industry supported by reality. Steel structure industry before the reform and opening up, China has been affiliated with big construction industry, is not as an independent industry. After the reform and opening up, steel structure and steel structure industry has great development, the steel structure as an independent industry rapid turnaround in China, and continue to grow stronger. After entering the new century, China's steel structure building and the construction technology has got unprecedented development, become the world's steel structure is strong.

Steel structure development in our country can be divided into four stages: early stage (the 1950 s and 60 s), low stage (the 1960 s to 70 s), developing stage (the 90 s and 1980 s) and prosperous stage (2000-2000).

New China in 1949, the newly established his devastated when steel output is very low, only 1.35 million tons per year (now more than 600 million tons). Steel structure construction only depend on economic and technical assistance of the Soviet union, the Soviet union built 156 heavy industrial plants, including metallurgy, heavy machinery, aircraft, automotive and other industrial, such as anshan steel, wuhan steel, dalian shipyard, Harbin aircraft manufacturing plant and so on. Was sent to a large number of Soviet expert guidance work. At the same time also in Beijing, shenyang, east China, south China, central south, southwest, northwest and other places set up six industrial design institute, in Beijing, wuhan, anshan, chongqing, baotou, Shanghai set up 6 steel design institute, successively set up 22 metallurgical ministry of constructionThe doorSteel structure manufacture and installation company, etc. Just a few short years a lot of steel structure construction industryworkshop(steel column, steel roof truss and the crane beam), cultivate a large number of talents in design, manufacture, installation, laid a solid foundation for future development. At that time, the civil buildingsteel structure engineeringNot much, in particular: 1954 Beijing gymnasium (57 meters across two hinged arch landing), 1954, chongqing people's hall (40.6 m rib steel ring dome), 1956, tianjin gymnasium (50 metres square steel mesh shell cylindrical al), 1959 ten thousand people's congress hall in Beijing (60.9 meters large steel truss), etc. The newborn s, China's steel structure industry as the national construction at the same time also developed, although difficult, external help is limited, but relying on our own efforts, still a lot of achievements, the period of the construction of the famous building many are still work in the country plays an important role in the life.

The 70 s to 1960 s,steelDemand increases, but the steel production is still not much, only 20 million tons per year, countries put forward the policy of saving steel, some one-sided understanding of no steel structure at the time, thensteel structure engineeringThe quantity is less. During the cultural revolution but also all stopped. But temporarily slowing down does not mean to become sclerotic and directionless-the fiefs, this period by experts and engineering technical personnel's active efforts, finally to use 1955 "specification for the steel structure for many years with independent writing 1974 version of the" standard of steel structure "instead. At the same time, also built some of the largersteel structure engineering. In advocate saving steel at the same time, countries and put forward to cancel the beams, pillars, deep fat fat based approach, so there was a group of cold bending thin-wall steel engineering, such as Shanghai, shaoguan, guilin, shiyan, built the hundreds of thousands of square metersworkshop, warehouse, etc. Due to save policies, steel plate rack project has popularization and application, especially successful research welded hollow spherical node, small and medium span across the country are welding ball node plate rack everywhere, at the same time, steel bolt ball node network frame structure is introduced.

The 90 s and 1980 s, with the deepening of reform and opening up, the national construction boom, this should say is 20 years steel structure for the development of thriving, due to the steel structure have some unique advantages, gradually for the popularization and application to construction projects. Especially the country's steel output continues to rise, in 1997 reached 100 million tons, have created favorable conditions to the development of steel structure. In 1998 our country has been able to rolling h-beam production, for the steel structure provides a new type steel series.


This period of timesteel structure engineeringIn the following aspects:

Single-layer workshop frame structure. The larger steel, seamless steel pipe, thermal power plant, etc. Its characteristic has a large area (200000 square miles), column height (50 meters), column spacing (48 meters), even across multiple across (8), large crane lifting weight (450 tons), etc. But maintenance structure light, use the color coating or steel sheetAluminum alloyressure plate. Parts factory has used flat space truss roof, steel pipeconcreteThe column.


The spatial structure. Flat space truss has been widely used large stadium, exhibition center, shopping mall, airport, station, warehouse, factory, etc. Most of the 1990 Asian games venues have adopted welded hollow spherical nodes flat rack. Libraries in the capital Beijing, 1996 (153 m + 153 m and 90 m deep), four pyramid three layer network frame welding ball node. That same year, hangar taeco (150 m & times; 70 m), using unbonded prestressed sola lever arch at the gate.

Using net shell projects: 1994, tianjin gymnasium (D = 108 m) use double layer spherical reticulated shell; Changchun stadium in 1997 (191.8 m) 146 meters & times; using double side steel pipe network shell, 1995 heilongjiang HuaBingGuan (86.2 m & times; 191.2 m) use a central hemisphere shell on both ends of the cylindrical reticulated shell. 1995 sichuan panzhihua gymnasium adopt eight side petal type double-layer reticulated shell, span of 60 meters, several times with prestress. This is the first time at home several times with prestressed concrete engineering. Was built in 1998 the Shanghai international gymnastic center the main hall, adopt aluminum alloy spherical reticulated shell, 68 meters in diameter. Network frame and net shell has a corresponding design procedures.

Cable structure development is slow, only a handful of engineering use. Such as shandong zibo stadium (54 meters), anhui stadium (53 m & times; 72 m), wuxi stadium (43 meters) 40 meters & times; and jilin BingQiuGuan adopting different cable network system. Cable-stayed structure is used as cable roof rack or reticulated shell of additional support, through the establishment of prestressed tensioning cables, such as the comprehensive gymnasium was built in 1989 Asian games (70 m & times; 83.2 m), swimming pool (78 meters) 78 meters & times; and so on.

Space structure and the arch,steel frameOf the hybrid system is developed. (such as the Asian games in Beijing shijingshan gymnasium is a triangle, the length 99.7 meters) and Beijing chaoyang stadium (60 m & times; 78 m), sichuan stadium (73.7 m & times; 79.4 m), Qingdao gymnasium (72 m & times; 87 m), etc., is a hybrid structural system.

Membrane and the membrane structure in the late 1990 s to get certain development, is still in the continually expanding application, is very promising. Such as 80000 stadium grandstand built in Shanghai in 1998, Shanghai hongkou stadium in new economic development zone, wuhan, Qingdao and qienouji stadium gymnasium and changsha & other; The Windows of the world & throughout; Theatre, etc., are the relatively large size of cable membrane structures.

High-rise building steel structure started late, but development achievements for attention. First for the 1987 shenzhen development center mansion, 165 meters, then the jingguang center 208 meters, 325 meters in 1996 in shenzhen diwang building, Shanghai jinmao tower, 420 meters in 1999 built in recent years, the Shanghai world financial center is the highest, 460 meters in the contemporary.

Light steel structure is developing very fast, especially the door typesteel frame, such as industrial workshop, warehouse, cold storage, greenhouse, hotels, villas and so on to get a large number of applications. Another kind of corrugated arch roof, because of light weight, fast construction, 30 meters in many applied in warehouse, processing plants and other steel structure, has completed hundreds of millions of square meters. lightSteel structure housingAlso, shows the broad prospects for development.

During this period, the expert inside course of study revised the 1974 edition of "standard of steel structure", to switch to 1988 "standard of steel structure".

Entering the new century, in nearly 10 yearssteel structure engineeringDevelopment rapidly, the range of, is unprecedented, the country has the world's steel structure in our country. Steel output was 400 million tons in 2006, the highest in the world, this also for the developmentsteel structure engineeringHave created favorable conditions. Traditional space structure such as grids, net shell, continue to be promoted, new space structure began to widely used, such as Zhang Xianliang, chord truss string and dome, etc. Shanghai pudong airport, Harbin exhibition center, Shanghai exhibition center, guangdong exhibition center, etc are more than 100 m copies string truss, it is also rare in the world. Guangdong baiyun airport and the three leaves of guangdong stadium are adopted advanced space steel structure at the time. Especially a few more games, the expo venues big using space steel structure, such as: new 37 of the 2008 Beijing Olympic Games venues, 2009 national games in shandong jinan venues, 2010 Shanghai world expo and guangzhou Asian games venues, 2011 shenzhen universiade venues and so on. It is worth mentioning that Beijing 2008 Olympic Games of the new 12 buildings, one axis and four pavilions of expo 2010 Shanghai on behalf of all the advanced technical level of our country's steel structure.


Shandong jinan 2009 national games main stadium, gymnasium, swimming pool and tennis center, the whole buildings adopt & other; Throughout east Netherlands XiLiu &; Building modelling, reflect the local characteristics of jinan, should be particularly noted that the gym adopted the 122 - meter diameter chord dome, is currently the country and the world the biggest span steel string a dome structure.

The Shanghai world expo venue is spectacular. One of one axis and four pavilions (i.e. the expo axis, China pavilion, the expo center, theme pavilions, performing arts center) permanent buildings are very distinctive.

Besides sports venues and the expo venues, completed the Shanghai world financial center, the new terminal building of Beijing capital international airport, the Beijing south railway station, national centre for the performing arts, China central television (CCTV) new sites, wuhan railway station, Beijing new poly plaza, zhengzhou international conference and exhibition center, a large number of iconic steel structure building.

During the construction of these features, not only created a number of first-class steel structure manufacture, install new technology at home and abroad, also emerged a large number of advanced steel structure enterprise at the same time, the steel structure industry for the future development is very favorable.

During this period due to policy support, engineering and technical personnel, the construction of the pilot project, the publication of the technical specification, make steel structure has had the requirement of further development.

During this period, 1988 edition of the "specification for steel structure was 2003" standard of steel structure "instead. At present, the 2003 edition of the "specification for steel structure was revised, updated version of the" norm of steel structure "in two years to come!

From the above description can envision steel structure development vision, even though the current financial crisis influence all aspects of the work, but the country's policy, it must be able to turn crisis into opportunities, to meet a better future. & other; 11th five-year plan & throughout; Planning, the ministry of railways plans to build 548 station in 548, the civil aviation administration is also investing heavily in plans to build 175 large airport terminal, all over the country provinces and cities also have vigorously construction of sports venues and conference and exhibition center planning. The policies of the government makes a man, make us more confident to the steel structure development. In short, as China's steel industry continued to develop; As the world construction industry new technical application and popularization of the new structure; As the new type of lightweight, low carbon energy saving building materials etc. The development of new materials; As the growth of the emerging industrial buildings, and other requirements, as well as the steel structure industry or enterprise product research and development, for the improvement of design skills, personnel growth, China's steel industry and enterprise will have a greater development.

In September 2010, & other; Influence the world & ndash; & ndash; Steel structure throughout China brand 2010 international summit &; Will be held in Shanghai, the summit, both at home and abroad well-known steel structure, government officials, developers, purchasers of high-end dialogue, is a brand for the first time in international steel structure China review, China steel structure with brand image stand China back to the world, also indicates the important position in the world steel structure industry of China!


Jiangxi Light steel structure through the acceptance of the museum of natural science subjectOn December 7

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2013年3月19日星期二

plant project overseas orders. By the end of November, a 30000 tons of heavy industries steel structure has been completed production

Southwest of fangchenggang in heavy industry: to build the most advanced steel structure manufacturing giantsRecently, fangcheng port in heavy industry co., LTD. Signed a Vietnam at creek & 2 times; 220 mw coal-fired power plant project of steel structure production contract, this is the second after India EIL power plant project overseas orders. By the end of November, a 30000 tons of heavy industries steel structure has been completed production, realize the output value of 300 million yuan.
As southwest's largest deep processing of steel structure manufacturing enterprises, the company has first-class steel structure production and technology of China is in the southwest of China metallurgical group and maximum throughput of guangxi beibu gulf port group international consortium. Company was founded on October 28, 2008, and was created by the end of the completed and put into operation, current year operation, products into the overseas market & other; Miracle & throughout; . & other; Miracle & throughout; Is the result of company & other; Three breakthroughs & throughout; .
Build speed and technological breakthrough. Factory, only ten months is producing 5500 tons of produce steel structure installation, installation of equipment 300 sets, and open 6 production lines for the completed finished product components & hellip; & hellip; Modern factories were built. At the same time, also made brilliant achievements in technology research, 11 declare all accepted, 1 declaration of scientific and technological achievements.
Construction of a breakthrough on the production. In early August this year, the company in huitong logistics V1204 duplex stainless steel tank main body construction, due to the storage tank advocate material, welding material are imported from Sweden, relative to the carbon steel has the processing difficulty is big, high welding requirements, etc, in heavy industry, the project department adopts the vertical cylindrical steel welded tank hydraulic jack-up technique, half a month to complete the task ahead of time. Because of heavy industries in the high quality service, won the owners of highly praise for a year contract nanning bonded logistics center construction steel structure building engineering, the north sea, the nickel industryWorkshop steel structure, nanning jin da xing paper issueWorkshop steel structureroduction and engineering 11 major projects, such as shen museum completed production of 30000 tons of steel structure. Among them, 7 projects ahead of schedule.
Market development breakthrough. At the beginning of the factory, the company will be market radiation to the asean countries, through multiple marketing planning, and put into operation after half a year to get first order overseas, EIL power plant sign with India steel structure workshop roduction engineering; In November, and 2 with Vietnam at brook & times; 220 mw coal-fired power plant steel structure production cooperation agreement; At present, there are multiple orders of asean countries are in the coming negotiation. (source: a heavy industry)


Jiangxi GuangChang comprehensive promotion of steel structure canopy seedling"Now with removable type steel frame Greenhouse seedling raising

http://jingtasteel.blogspot.com/2013/03/jiangxi-guangchang-comprehensive.html

2013年3月18日星期一

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


"Wuxi first high-rise" prefab buildings 339 meters next year commencement challenge to new heightsRecently, from the world's tallest building, the Shanghai world financial center steel structure engineering Builder - zhongjian steel structure company in Shanghai fell in love again "first level", every winning 67 layer, the total height of 339 meters of wuxi's tallest building - the gold center steel structure engineering.

According to introducing, wuxi the centerline of the center is located in the south of taihu lake in wuxi city square, is specializing in office buildings, hotels, high-end commercial buildings. The project total construction area of about 227000 ㎡, the main engineering underground 2 floors, 67 floors on the ground, building height of 339 m, in China (including Hong Kong and Taiwan) ranks the top 10 buildings, and at the top of the wuxi's tallest building. Steel weight of the steel structure of the whole project is about 17000 tons,steel structure engineeringIs scheduled to commence in April 2011, completed in April 2014,steel structure engineeringConstruction period lasted for 3 years.

Wuxi is the gold center zhongjian steel structure Shanghai branch focus on tracking in 2010 and won the bid for one of the big project and is the key of the consolidation of wuxi market project, the company doesn't depends on the total package units and is also independent of another. Wuxi gold center won the bid as "build steel structure" brand high-end building success in jiangsu market have laid a solid foundation, will strongly promote zhongjian steel structure branch of Shanghai area operation, independent operation process.

, zhongjian steel structure of the Shanghai office manager xu said the branch since founded in 2005, wuxi gold are they built in the east China area at the centre of the 8, 200 meters above the height of the skyscraper, these skyscrapers are: gold land building (41 layer, 210.6 meters), the Shanghai world financial center (101 stories, 101 meters), China's ping an financial building (39, 203 meters), the 21st century center (50, 210 meters), huamin emgrand tower (60 layer, 235.5 meters), taiping financial tower (38, 208 meters), China merchants bank, Shanghai tower (37, 208 meters), wuxi jin (67 stories, 67 meters).


Tianjin culture center: six big steel structure building firstAs a representative of the biggest cities in the future

http://jingtasteel.blogspot.com/

2013年3月17日星期日

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

Hall site protection shed supporting steel structure Avoid excavation and pile on construction sites, 194 independent pillars hold up with protective shelter ancient line of steel structure & ndash; & ndash;

Luoyang DingDing northeast and zhongzhou road intersection, is home to luoyang public transportation corporation, its basic position in the center of the luoyang city. Today, it is a city sui and tang dynasties of luoyang palace city hall display protection engineering construction site & ndash; & ndash; The tall tower crane, frequent in and out of the vehicle, has been out of the ground of the steel structure framework attracts many people's eyes.

How to protect the important site of sui and tang dynasties of luoyang city? How to do in the construction site without damage? After the completion of the protection of the building what look like? With the readers' questions and concerns, our reporter walked into the hall to show protection engineering site, the excavation protection shows the engineering behind the news.

What is the work of the ancient hall?

It is 294 feet high, three layers, it is cloth of the empress wu zetian decrees, entertain princes, worship hall, is her dominant center

Mencius said: & other; Throughout, hall, the hall also king &; ; In du fu's "shek kwu song said: & other; Open hall ChaoHe, governors throughout his sword grinding & sound phase; ; "Mulan phrase" in such said: & other; Return see right, right to sit hall & throughout; .

Hall is? The ancient ritual of highest specification building, is the place where emperor declared of church and state.

So, wu zetian period's hall in where? This problem, as the cultural relics of luoyang excavation and conservation have the answer.

In 1986, the city of luoyang in northeast DingDing zhongzhou road intersection area planning and construction of building, the bus company construction personnel excavation foundation of a house and found a buried in the soil of ancient brick. Continue to clean up along the ancient brick, a brick wall.

Chinese academy of social sciences, archaeology team staff rushed to sui and tang dynasties city, immediately organized several group after excavation. After a few days and nights of excavation, a construction sites appear in front of the world. Measurement of the size of it, found ten thousand square meters!

Combining the relevant historical materials and sites, archaeological experts concluded that this site is in the history of Chinese literature the first female emperor wu zetian's hall.

Literature on the hall has the following description.

Hall, 294 feet high, north-south, east-west 300 feet each, a total of three layers: the lower sides corresponding to four, that is, spring, summer, autumn and winter; 12 middle method are for dome, Kowloon holding on; On the upper method twenty-four solar terms, also for the dome, ShiTieFeng, higher zhangs, decorated with gold. In the hall with a huge wooden pile, as a bucket Gong beams attached to the trunk, upper and lower penetration, vientiane palace.

Hall, its location has a dry YangDian emperor yangdi. In 621, its flat Wang Shichong mess of the house was burned down. In A.D. 665, tang dynasty the emperor dry yuan temple built on site. In 688 AD, the empress wu zetian ordered the demolition of dry yuan temple, the hall built on the site.

What is the majestic palace? It's wu zetian in luoyang acting palace. But, it is different from general palace: here, in addition to the emperor to promulgate decrees, accept ChaoHe, treats princes and important government activities such as debate lectures, also worship the 2nd face & ndash; & ndash; Hall, the function of shoulder the sacrifice.

Later, the hall was destroyed in the rebellion.

What is the new hall?

It is a 20000 - ton, have protective shelter ancient line of steel structure, covered the hall site, has multiple functions such as protection and display

This morning, the reporter sees in the engineering construction site, the hall octagon steel structure steel beam on the ground has begun to take shape.

& other; Hall show construction is an ancient building line protection of steel protective shelter, is a 20000 - ton monster! Throughout the &; Sui and tang dynasties of luoyang palace city urban engineering headquarters Zhou Haitao introduction, display hall protection buildings are neither restores ancient ways, nor antique buildings. Therefore, the significance of the new hall is completely different from the ancient imperial palace hall, its design concept is totally different from the ancient hall.

Say simply, it is a modern large-scale steel structure protection shed, the bottom from the east, west, south, north three layers stylobate layers of curl upwards, finally form the octagon pavilion slope protective shelter. Figuratively speaking, the new hall, in hall site cover a large shield, the shield in realization of multiple functions such as protection, show and visit.

Why the new hall is a steel structure with ancient line protective shelter? Because, although the new hall is not recover to hall, but fully consider when building the basic shape of the original building: for example, new hall USES the octagon three-tier stylobate, three-layer stylobate is recorded on the historical hall of intentionality.

How big is the size for the protection of the tent? Zhou Haitao said, protective construction total 21 meters high, things, the north and south 105 meters wide, a total construction area of nearly 9880 square meters, the total weight of more than 20000 tons.

The new hall and hall site contact embodied in where?

New tricks so & other; Deductive & throughout; Hall: don't do image restoration or fake, according to hall's historical image display of intentionality, standing on the floor in the new hall can visit hall site

Should not only can protect the important sites, but visit and display function, the new hall in design has its unique feature.

Hall protection shows the building covering the full extent of the site, its appearance not do image restoration or fake, but using the octagonal plane shape, three columns on each side to step stairs three layers of luck receiving gate, luck receiving palace, three on each side to show intentional elements such as history books recorded in historical image's hall.

New hall has two layers: the layer and underground layer.

Layer on the ground floor with three-layer stylobate is high, east, west, south, north three steps, each side has three sets of doors. The rest four multi-function hall, using multimedia show means past dynasties to the tang dynasty in luoyang city appearance, HeLuo people life scenes, miyagi archaeological course content to display.

Site protection hall the underground layer of the excavated area.

Municipal administration of cultural heritage, sui and tang dynasties of luoyang palace city, deputy director of engineering battalion commander Wang Mulin said that for the same show has unearthed hall center column column around the development and application of part of the site, from the floor of the ground floor of a down, height of 13.26 meters.

In particular, the central hall center part of the glass floor laid is 11 meters in diameter, made 11 meters in diameter glass curtain wall glass floor down to the site surface, the height of 13.26 meters.

Glass floor standing in 11 meters in diameter around the banisters look down, can see hall ZhuChuShi and other sites. Railings outside, it is precast floor ground: if due to the need of archaeological excavations, pull down floor can work.

How is the function of the new hall?

illar of independent 194 in fine sand and notoginseng lime soil cushion, let more than 20000 tons of heavy & other protective shelter and sites; No root & throughout; Connection, protection of the site

LiuJian construction group co., LTD., henan hall, head of the technical department JiHaoJie calculated the weight of the steel protective shelter: protect tent to use all kinds of steel 2296 tons, use of floor slab weight more than 6500 tons, together with the other all sorts of structural members, the total weight of more than 20000 tons. The main weight by 194 precast beam composed of independent column is passed on to the ancient rammed earth, it requires that the ancient rammed earth's carrying capacity is 40.5 tons per square metre.

In the history of sui and tang dynasties in luoyang city repeatedly damaged, currently preserved ruins are the soil site. On soil sites protection engineering construction, protection, not destruction is one of the most fundamental principle. So, such a modern behemoth built on the ruins, ruins can withstand?

no problem

It is hard to imagine: based on the site protection, the purpose of school of architecture, tsinghua university doctoral tutor, the famous design expert Guo Dai thus Heng switches to the design of this modern monster unexpectedly & other; No root & throughout; .

JiHaoJie said, through scientific experiments found that ancient rammed earth's carrying capacity is 23 tons per square meter, far can not meet the requirements of 40.5 tons per square meter, how to do? In order to protect the display engineering, on the ancient rammed earth excavation, not driving: construction, the site first rammed earth covered with a 60 cm thick layer of fine sand and fine sand with a 40 cm thick layer of notoginseng lime soil. Don't dismiss the composed of fine sand and notoginseng lime soil 1 m thick cushion: have the cushion, the ancient rammed earth bearing capacity is 40.5 tons per square meter. No excavation and pile driving, 178 pillar of independence & other; Sat & throughout; Notoginseng dust, completely & other; No root & throughout; .

& other; Independent column & throughout; What is the row? & other; Prefabricated built-up beam & throughout; And what's the matter?

JiHaoJie said, & other; Independent column & throughout; Bearing to protect the pillars of the building is: after the completion of steel beam and one integrated mass, independent assembly, during the construction of so called independent column.

Because the position is different, different bearing capacity, the size of the hold up to protect the pillars of the building also each are not identical. Specifically, range 1 m to 10 m tall, horizontal section length of 0.5 m to 0.9 m, width 1 m to 7.5 m range.

Due to the large vibration of mechanical construction will have an impact on the site, all by 194 independent columns & other; Prefabricated built-up beam & throughout; After assembled, all of them in the workshop ready to site and installation.

Among them, one of the biggest pillar of independent of surface area of 75 square meters, made up by more than 40 assembling precast beams, finally by the wire rope wear even after fixed as a whole, its bearing capacity is 1440 tons. It is understood that such a large independent column has eight root.

194 pillar of independent use of precast beam total to 2796.

What is the biggest characteristic of the new hall?

It is real & other; Green building & throughout; Completely reversible, the construction process, but without damage the ruins of all removed, leaving space for later generations of archaeological work

Wang Mulin said hall show building protection was & other Green & throughout; : it has the whole construction program of reversible, renewable and environment protection, etc.

What is & other; Reversible & throughout; ? Wang Mulin said, want to understand the cultural connotation of sui and tang dynasties of luoyang city, may need efforts of several generations. Like Roman Pompeii, archaeological work for over 230 years, is still doing. Luoyang show great site protection engineering is faced with a topic: how to make archaeological leave enough to adjust and improve space? In simple terms, when the master more new materials, new technology of later generations to big sites protection, when the display again, they can remove our construction & other Protective shelter & throughout; ? When excavations are required, can be easily dismantled site above floor slab and the steel structure?

The builders of the new hall are considered.

Hall protection structures are all made of the steel structure and fabrication, steel anchor bolt connection. If need to tear down in the future, after unloaded bolts can be removed and prefabricated components can overall carrying, and can be used in other construction projects.

Moreover, hall protection shows the interior construction USES light guide: light pipe surface is reflective coating rate is 99.7%, natural light can be converted to light source, to reduce the use of artificial light, and eliminates the ruins of the ultraviolet radiation.

Hall, after the completion of the steel structure protection shed all three layers of stylobate and octagonal pavilion slope protective shelter house will plant on artificial turf, the protection will become a huge green buildings.

The emergence of the new hall will appear abrupt?

In fact, the new hall can't hold a candle to Tang Mingtang from scale, built in the spring of next year it will make photograph reflect ancient civilization and modern civilization

Careful readers may find that, in a hall is no tall buildings around the town of sui and tang dynasties of the palace city. This, in fact is the result of decades luoyang cultural relics protection.

So, in a modern city downtown show the protection engineering, will appear abrupt?

Wang Mulin said, sui and tang dynasties, hall and heaven is in luoyang city miyagi's tallest building. The protection engineering about 21 meters high, will not appear abrupt. In fact, it will become a landmark of the region, make the ancient civilization and modern civilization can hand in photograph reflect, become a cultural symbol of imperial city in one thousand.

With hall protection shows the project on schedule and is expected to next peony to the meeting, a collection of cultural relics protection and multimedia display function in a body's new hall will appear in front of the world.


Wuhan international exhibition center main stadium steel structure

http://jingtasteel.blogspot.com/2013/03/wuhan-international-exhibition-center.html

2013年3月14日星期四

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

Hall site protection shed supporting steel carports Avoid excavation and pile on construction sites, 194 independent pillars hold up with protective shelter ancient line of steel structure & ndash; & ndash;

Luoyang DingDing northeast and zhongzhou road intersection, is home to luoyang public transportation corporation, its basic position in the center of the luoyang city. Today, it is a city sui and tang dynasties of luoyang palace city hall display protection engineering construction site & ndash; & ndash; The tall tower crane, frequent in and out of the vehicle, has been out of the ground of the steel structure framework attracts many people's eyes.

How to protect the important site of sui and tang dynasties of luoyang city? How to do in the construction site without damage? After the completion of the protection of the building what look like? With the readers' questions and concerns, our reporter walked into the hall to show protection engineering site, the excavation protection shows the engineering behind the news.

What is the work of the ancient hall?

It is 294 feet high, three layers, it is cloth of the empress wu zetian decrees, entertain princes, worship hall, is her dominant center

Mencius said: & other; Throughout, hall, the hall also king &; ; In du fu's "shek kwu song said: & other; Open hall ChaoHe, governors throughout his sword grinding & sound phase; ; "Mulan phrase" in such said: & other; Return see right, right to sit hall & throughout; .

Hall is? The ancient ritual of highest specification building, is the place where emperor declared of church and state.

So, wu zetian period's hall in where? This problem, as the cultural relics of luoyang excavation and conservation have the answer.

In 1986, the city of luoyang in northeast DingDing zhongzhou road intersection area planning and construction of building, the bus company construction personnel excavation foundation of a house and found a buried in the soil of ancient brick. Continue to clean up along the ancient brick, a brick wall.

Chinese academy of social sciences, archaeology team staff rushed to sui and tang dynasties city, immediately organized several group after excavation. After a few days and nights of excavation, a construction sites appear in front of the world. Measurement of the size of it, found ten thousand square meters!

Combining the relevant historical materials and sites, archaeological experts concluded that this site is in the history of Chinese literature the first female emperor wu zetian's hall.

Literature on the hall has the following description.

Hall, 294 feet high, north-south, east-west 300 feet each, a total of three layers: the lower sides corresponding to four, that is, spring, summer, autumn and winter; 12 middle method are for dome, Kowloon holding on; On the upper method twenty-four solar terms, also for the dome, ShiTieFeng, higher zhangs, decorated with gold. In the hall with a huge wooden pile, as a bucket Gong beams attached to the trunk, upper and lower penetration, vientiane palace.

Hall, its location has a dry YangDian emperor yangdi. In 621, its flat Wang Shichong mess of the house was burned down. In A.D. 665, tang dynasty the emperor dry yuan temple built on site. In 688 AD, the empress wu zetian ordered the demolition of dry yuan temple, the hall built on the site.

What is the majestic palace? It's wu zetian in luoyang acting palace. But, it is different from general palace: here, in addition to the emperor to promulgate decrees, accept ChaoHe, treats princes and important government activities such as debate lectures, also worship the 2nd face & ndash; & ndash; Hall, the function of shoulder the sacrifice.

Later, the hall was destroyed in the rebellion.

What is the new hall?

It is a 20000 - ton, have protective shelter ancient line of steel structure, covered the hall site, has multiple functions such as protection and display

This morning, the reporter sees in the engineering construction site, the hall octagon steel structure steel beam on the ground has begun to take shape.

& other; Hall show construction is an ancient building line protection of steel protective shelter, is a 20000 - ton monster! Throughout the &; Sui and tang dynasties of luoyang palace city urban engineering headquarters Zhou Haitao introduction, display hall protection buildings are neither restores ancient ways, nor antique buildings. Therefore, the significance of the new hall is completely different from the ancient imperial palace hall, its design concept is totally different from the ancient hall.

Say simply, it is a modern large-scale steel structure protection shed, the bottom from the east, west, south, north three layers stylobate layers of curl upwards, finally form the octagon pavilion slope protective shelter. Figuratively speaking, the new hall, in hall site cover a large shield, the shield in realization of multiple functions such as protection, show and visit.

Why the new hall is a steel structure with ancient line protective shelter? Because, although the new hall is not recover to hall, but fully consider when building the basic shape of the original building: for example, new hall USES the octagon three-tier stylobate, three-layer stylobate is recorded on the historical hall of intentionality.

How big is the size for the protection of the tent? Zhou Haitao said, protective construction total 21 meters high, things, the north and south 105 meters wide, a total construction area of nearly 9880 square meters, the total weight of more than 20000 tons.

The new hall and hall site contact embodied in where?

New tricks so & other; Deductive & throughout; Hall: don't do image restoration or fake, according to hall's historical image display of intentionality, standing on the floor in the new hall can visit hall site

Should not only can protect the important sites, but visit and display function, the new hall in design has its unique feature.

Hall protection shows the building covering the full extent of the site, its appearance not do image restoration or fake, but using the octagonal plane shape, three columns on each side to step stairs three layers of luck receiving gate, luck receiving palace, three on each side to show intentional elements such as history books recorded in historical image's hall.

New hall has two layers: the layer and underground layer.

Layer on the ground floor with three-layer stylobate is high, east, west, south, north three steps, each side has three sets of doors. The rest four multi-function hall, using multimedia show means past dynasties to the tang dynasty in luoyang city appearance, HeLuo people life scenes, miyagi archaeological course content to display.

Site protection hall the underground layer of the excavated area.

Municipal administration of cultural heritage, sui and tang dynasties of luoyang palace city, deputy director of engineering battalion commander Wang Mulin said that for the same show has unearthed hall center column column around the development and application of part of the site, from the floor of the ground floor of a down, height of 13.26 meters.

In particular, the central hall center part of the glass floor laid is 11 meters in diameter, made 11 meters in diameter glass curtain wall glass floor down to the site surface, the height of 13.26 meters.

Glass floor standing in 11 meters in diameter around the banisters look down, can see hall ZhuChuShi and other sites. Railings outside, it is precast floor ground: if due to the need of archaeological excavations, pull down floor can work.

How is the function of the new hall?

illar of independent 194 in fine sand and notoginseng lime soil cushion, let more than 20000 tons of heavy & other protective shelter and sites; No root & throughout; Connection, protection of the site

LiuJian construction group co., LTD., henan hall, head of the technical department JiHaoJie calculated the weight of the steel protective shelter: protect tent to use all kinds of steel 2296 tons, use of floor slab weight more than 6500 tons, together with the other all sorts of structural members, the total weight of more than 20000 tons. The main weight by 194 precast beam composed of independent column is passed on to the ancient rammed earth, it requires that the ancient rammed earth's carrying capacity is 40.5 tons per square metre.

In the history of sui and tang dynasties in luoyang city repeatedly damaged, currently preserved ruins are the soil site. On soil sites protection engineering construction, protection, not destruction is one of the most fundamental principle. So, such a modern behemoth built on the ruins, ruins can withstand?

no problem

It is hard to imagine: based on the site protection, the purpose of school of architecture, tsinghua university doctoral tutor, the famous design expert Guo Dai thus Heng switches to the design of this modern monster unexpectedly & other; No root & throughout; .

JiHaoJie said, through scientific experiments found that ancient rammed earth's carrying capacity is 23 tons per square meter, far can not meet the requirements of 40.5 tons per square meter, how to do? In order to protect the display engineering, on the ancient rammed earth excavation, not driving: construction, the site first rammed earth covered with a 60 cm thick layer of fine sand and fine sand with a 40 cm thick layer of notoginseng lime soil. Don't dismiss the composed of fine sand and notoginseng lime soil 1 m thick cushion: have the cushion, the ancient rammed earth bearing capacity is 40.5 tons per square meter. No excavation and pile driving, 178 pillar of independence & other; Sat & throughout; Notoginseng dust, completely & other; No root & throughout; .

& other; Independent column & throughout; What is the row? & other; Prefabricated built-up beam & throughout; And what's the matter?

JiHaoJie said, & other; Independent column & throughout; Bearing to protect the pillars of the building is: after the completion of steel beam and one integrated mass, independent assembly, during the construction of so called independent column.

Because the position is different, different bearing capacity, the size of the hold up to protect the pillars of the building also each are not identical. Specifically, range 1 m to 10 m tall, horizontal section length of 0.5 m to 0.9 m, width 1 m to 7.5 m range.

Due to the large vibration of mechanical construction will have an impact on the site, all by 194 independent columns & other; Prefabricated built-up beam & throughout; After assembled, all of them in the workshop ready to site and installation.

Among them, one of the biggest pillar of independent of surface area of 75 square meters, made up by more than 40 assembling precast beams, finally by the wire rope wear even after fixed as a whole, its bearing capacity is 1440 tons. It is understood that such a large independent column has eight root.

194 pillar of independent use of precast beam total to 2796.

What is the biggest characteristic of the new hall?

It is real & other; Green building & throughout; Completely reversible, the construction process, but without damage the ruins of all removed, leaving space for later generations of archaeological work

Wang Mulin said hall show building protection was & other Green & throughout; : it has the whole construction program of reversible, renewable and environment protection, etc.

What is & other; Reversible & throughout; ? Wang Mulin said, want to understand the cultural connotation of sui and tang dynasties of luoyang city, may need efforts of several generations. Like Roman Pompeii, archaeological work for over 230 years, is still doing. Luoyang show great site protection engineering is faced with a topic: how to make archaeological leave enough to adjust and improve space? In simple terms, when the master more new materials, new technology of later generations to big sites protection, when the display again, they can remove our construction & other Protective shelter & throughout; ? When excavations are required, can be easily dismantled site above floor slab and the steel structure?

The builders of the new hall are considered.

Hall protection structures are all made of the steel structure and fabrication, steel anchor bolt connection. If need to tear down in the future, after unloaded bolts can be removed and prefabricated components can overall carrying, and can be used in other construction projects.

Moreover, hall protection shows the interior construction USES light guide: light pipe surface is reflective coating rate is 99.7%, natural light can be converted to light source, to reduce the use of artificial light, and eliminates the ruins of the ultraviolet radiation.

Hall, after the completion of the steel structure protection shed all three layers of stylobate and octagonal pavilion slope protective shelter house will plant on artificial turf, the protection will become a huge green buildings.

The emergence of the new hall will appear abrupt?

In fact, the new hall can't hold a candle to Tang Mingtang from scale, built in the spring of next year it will make photograph reflect ancient civilization and modern civilization

Careful readers may find that, in a hall is no tall buildings around the town of sui and tang dynasties of the palace city. This, in fact is the result of decades luoyang cultural relics protection.

So, in a modern city downtown show the protection engineering, will appear abrupt?

Wang Mulin said, sui and tang dynasties, hall and heaven is in luoyang city miyagi's tallest building. The protection engineering about 21 meters high, will not appear abrupt. In fact, it will become a landmark of the region, make the ancient civilization and modern civilization can hand in photograph reflect, become a cultural symbol of imperial city in one thousand.

With hall protection shows the project on schedule and is expected to next peony to the meeting, a collection of cultural relics protection and multimedia display function in a body's new hall will appear in front of the world.


Wuxi gold centersteel structure engineering Completed in 2015

http://jingtasteel.blogspot.com/2013/03/wuxi-gold-centersteel-structure.html

2013年3月13日星期三

250 million investment in building steel structure stadium

250 million investment in building steel structure stadium Recently, will invest 250 million yuan in the central campus of shandong university built a large gymnasium, and stadium 6000 seats can be pledged, each to seat the subscription amount is RMB 5000 yuan, or $800.

It is reported that 2011 is the anniversary of the shandong university, stadium seat pledging activity is part of shandong university donations for the university's 110 anniversary. Center campus stadium will be built, meanwhile, the landmark building of shandong university, with a total investment of 250 million yuan, total construction size of 31800 square meters, the fixed seat 6000, built a swimming pool and the gym and other sports facilities, for basketball, badminton, volleyball, table tennis, handball, etc. Provide formal competition venues, can also be used for all the teachers and students staff and the surrounding community physical education and fitness activities of the masses to provide facilities for security.

Seat pledging activities in the gym, Alexander will welcome the alumni at home and abroad and people from all walks of life in the name of the individual or collective for pledging, seat the subscription amount is RMB 5000 yuan, or $800, and the school will put monuments inscribed with donors information in seat. In addition, the naming also intends to take the form of donors, internal facilities including gym training room, VIP room facilities such as naming donation amount will vary depending on the project.

As Alexander's iconic buildings in the future, with a total investment of 250 million yuan, has a 6000 - seat Alexander comprehensive gymnasium is a what look like? It is understood that the stadium construction shape design, take resolute and firm and tenacious spirit is to the mountain. Stadium is "big small" on the regular hexahedron, and audience stands under the extended upward trend is consistent. Podium part the design inspiration of the ups and downs of the sea, the use of south academy storey height is higher, the entire roof bending upwards, forming a pulse wave retainer founder's gym. Audience hall on the second floor set things on both sides of the verandah wavy perforated outer visor, distance composite into pieces of white foam. The entire stadium, one integrated mass, and the shandong university the school motto of "gas with integrity, live and learn".

At the same time, according to the Olympic stadium is built stadium design, diversification of sports game can flexible into space during functional rooms, also for the future Alexander can undertake more social motion a chain of large sports games.

In the general layout, the stadium is located in shandong university in "south gate", library, scientific research building, gymnasium axis, no matter from the space, height, volume, the gym will greatly strengthen the sequence formed by a series of important building.


National policies to guide the steel structure industry broad prospects for development steel structure disgn

http://jingtasteel.blogspot.com/2013/03/national-policies-to-guide-steel.html

2013年3月12日星期二

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

Three main tower erqi Yangtze river bridge steel structure will all meeting tonightYesterday afternoon, erqi changjiang river bridge in wuhan hankou side pier of bridge erection is complete, the total length540 metersThe steel beam is an organic whole repeatedly. The hankou side piers steel trough girder erection pushing method is used to the construction, the technology in the domestic set up the steel beam for the first time.

Wuhan Yangtze river bridge is located in wuhan city, hubei province, bridge across Yu Wuchang and hanyang guishan between snake mountain, which is often said that the tortoise snake river lock. Wuhan Yangtze river bridge is the first of its kind in the China on the Yangtze river to build railways, roads and Bridges. The whole bridge length1670 meters, in which the right bridge1156 meters, the north approach span303 meters, on the south bank approach of211 meters. From the basement to highway bridge deck80 metersAnd lower for the double line railway bridge, wide14.5 meters, two trains can be split at the same time. Upper for highway bridge, and the width22.5 meters, including: roadway18 mAnd 4 lanes; On either side of the roadway of pavement2.25 meters. Continuous Bridges, a bridge for the joint every 3 hole, a total of 8 block 9 holes. Each hole span for128 metersAt the age of the great ship sailed shine. Played a large role.

Right bridge bridgehead of ethnic style, built the ends of the high35 m, from ground floor lobby to pavilion, a total of 7 layers, there are electric lifts for people up and down. Affiliated buildings and all kinds of decoration, exquisite polar coordinate, the whole bridge majestic. If from the bottom by electric lifts can be directly on the bridge in highway bridge deck to visit, look around, the three towns of wuhan into an organic whole, is created by the Yangtze river the hankou-beijing of partition, YueHan two railways, form a complete beijing-guangzhou route, make people relaxed and happy, to extrapolate, was "a bridge over the north and south, barrier allows".

Wuhan Yangtze river bridge inOn September 1, 1955Construction, in theOn October 15, 1957Built open to traffic, the construction of bridge get the help of the Soviet government, Soviet union experts for bridge design and construction provide a lot of guidance, but, after the sino-soviet relations broke the soviets withdrew all experts, the final work on the new bridge is madeMAO yishengMr The charge.


High house steel space frame design characteristics

http://jingtasteel.blogspot.com/2013/03/high-house-steel-space-frame-design.html

2013年3月11日星期一

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

stell frame stereoscopic parking lot will become the marking of the cityAt present, the steel structure three-dimensional garage is not large-scale construction, steel structure three-dimensional garage this big market will get rapid development. Steel structure parking equipment and steel structure nanjing.and then it investigates combination implementation, it is difficult to solve the urban parking is the most effective means, is the only way for the development of parking industry.

In recent years, with the rapid development of modern economy in our country, the people's living standard has improved markedly, and the rapid development of modern automobile industry, let the car became a lot of family transport, into the ordinary people. By land and limits on the number of the parking lot, parking become a lot of problem, especially in big cities, by using steel structure stereoscopic parking lot is to solve the first choice for urban parking difficult road.

Steel structure stereoscopic parking lot, just as its name implies the steel member, with bolt connection among of go profile type buildings, whose character is, in the veranda ground laid track, go profile end have lift platform with shaft; Lifting platform using the hydraulic jack can promote cars to park the car layer; The level of the lifting platform moving the oil motor traction; Car into platform with stable wheel fixed wheel, the photoelectric control control operation. The advantage is, fabricated steel structure, cover an area of less investment, easy to move, province; Use oil motor and hydraulic jack realize vehicle movement or lifting, simple structure, safe and reliable. It is suitable for automobile, motorcycle stereoscopic parking.

Steel structure stereoscopic parking lot parking difficult to solve

Urban progress, human scale continues to expand, cause urban space more and more small, so people began to use a space concept, the city center commercial/residential area high-rise buildings, community road, elevated road, overpass and underground railway, braid a city the three-dimensional network of communication lines. As a car residential parking lot, the plane stop steering stereoscopic parking, from simple mechanical parking to computer management and high degree of automation in modern stereoscopic parking evolution, steel structure stereoscopic parking lot will become strong practicability, appreciation and suitable for urban environment construction.

Urban parking are still in the primary stage, private and public parking space from the reasonable number of parking and vehicle ratio differs very far, difficult parking can be seen everywhere. At present our country still parking lot to plane the parking lot, the way the parking lot, parking lot, self-propelled parking lot is given priority to, parking equipment and mechanical parking lot quantity is little. In the face of the city space and by increasingly crowded urban traffic, how to expand the stereoscopic parking lot of construction, strengthen the service and management, improve the utilization rate of stereoscopic parking lot, has become the urgent matter.

Steel structure stereoscopic parking lot obvious advantages

Steel structure parking equipment according to the architectural form is divided into independent type and built-in two. Detached garage is suitable for underground square and existing buildings to fill establish parking facilities, planning and construction should be paid attention to when with the surrounding environment of fusion, in conditions allow, can decorate metope of business or public welfare advertisement, beautify the environment, improve the economic benefit. Built-in parking facilities suitable for and new building synchronous planning and construction. Below about steel structure three-dimensional garage advantage:

Save area, make full use of space advantage. Usually, steel structure made Hugh car parks covers an area of about 1/2 of the parking lot for plane to 1/25, space utilization ratio traveling parking increased by more than 75%. Traditional parking lot fifty car need space of 1650 square meters, cost about 7.5 million yuan, and by using the three-dimensional garage top speed only need fifty square meters space, its cost is only 3.8 million yuan left (including civil engineering cost), can save 50% cost.

Computer control access, convenient and quick and environmental protection. Steel structure three-dimensional garage easy to use, simple operation, safe, reliable, fast access. In addition, because access car, charge to make the full automatic car into the garage, and after all the process all by computer control, can reduce emissions, favorable environmental protection.

Large steel structure three-dimensional garage should be unified planning and construction

First, large steel structure parking equipment must conform to the planning of urban traffic development strategy, the urban traffic planning and public parking lot planning requirements, planning the layout of the point should be and city view, historical and cultural traditions, adapt to meet the social economy and the development of land utilization, road traffic conditions and environmental protection requirements of multiple targets.

Second, large steel structure stereoscopic parking planning to urban parking strategy and social public parking development strategy as a guide, support the urban traffic development strategic target realization, adapt to the traffic demand management objectives and the needs of the measures.

Third, large steel structure three-dimensional garage to determine the size of the planning of mechanical parking equipment with the qualitative and quantitative analysis, qualitative analysis under the direction of quantitative research methods, to improve the scientific planning.

Fourth, large mechanical parking equipment steel structure should be emphatically layout in building density is high and services and activities strength city centre, comprehensive business district, CBD area and so on, to avoid in a highly concentrated area of park characteristics (such as exhibition center, sports venues, large cinema, etc.) set.

Steel structure stereoscopic parking market prospect

At the moment of motor vehicles in urban functions and the ratio of the parking space for 5:1, meet rate less than 15%. Expert estimates, in addition to a taxi outside, motor vehicle in most cases, only less than 20% of the time on the road most of the time, and the rest are need to find place to park. This will give the number of parking space put forward more requirements. No doubt parking problem has already become the bottleneck of urban development, and mechanical steel structure stereoscopic parking will be solve the problem of the main way.

As a modern metropolis of mark, three-dimensional construction and three-dimensional traffic have remarkable development, road congestion, CheManWeiHuan has become one of the most fast social harmony, the development of steel structure stereoscopic parking has become the consensus of people. As people living standard rise ceaselessly, the pace of the car into the family is accelerating, steel structure stereoscopic parking industry wide prospect of market.

At present, the steel structure three-dimensional garage is not large-scale construction, steel structure three-dimensional garage this big market will get rapid development. Steel structure parking equipment and steel structure nanjing.and then it investigates combination implementation, it is difficult to solve the urban parking is the most effective means, is the only way for the development of parking industry.


At this stage to improve steel frame constructionTechnology and quality is very important

2013年3月10日星期日

Xinxiang chamber of commerce building steel frame


Xinxiang chamber of commerce building steel frame engineering Was awarded the "China steel structure gold medal"Recently, the key project - xinxiang chamber of commerce building constructionsteel structure engineering, in the henan building "zhongzhou cup" and so on a number of honors, and was awarded the "China steel structureGold medal".

Held a few days ago commendation congress, vice mayor JiaQuan Ming, vice chairman of the CPPCC WangPingShuang, mayor JiaShengXiang assistant for all the contractors issue trophies, MEDALS and prizes.

At present, xinxiang chamber of commerce building after two years of preparation and construction, building the main body of the project has been successfully capped, both inside and outside decoration and equipment installation is orderly, meters high Gemini type of xinxiang chamber of commerce building will be fully completed before the end of September.

WangPingShuang hope construction and supervision unit, to pick advised China steel structureGold medal"As an opportunity to further strengthen management, and constantly improve the level of project quality, won the highest award for construction" luban prize ". JiaQuan Ming on behalf of the municipal party committee and the city government to all the staff joining into the congratulations, and points out, xinxiang chamber of commerce building construction project won awards, which marks the engineering quality merit has entered a new stage. The various departments and construction enterprise in a highly responsible attitude, realistic style and innovation methods, the construction industry to get new development,steel structure engineeringQuality to get new ascension, and constantly the urban construction to the new step.

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space truss structure construction should be the independent branchsteel structure


http://jingtasteel.blogspot.com/2013/03/space-truss-structure-construction.html

2013年3月8日星期五

Elaborate design of structural steel show four characteristics


Elaborate design of steel structure show four characteristicssteel structural steel disgn Should pay attention to?
Our LiuCi: it is used, economic, beautiful is building engineering design of the three basic principles. A design good engineering should have beautiful appearance modelling, science advanced supporting system, comfortable perfect architectural function, economic and reasonable investment and operation cost, this is the most basic measure of building quality scientific basis.
Reporter: you put forward, elaborate designsteel structure engineeringShould have innovation, high quality, convenient, economic four basic characteristics, please explain in detail.
Our LiuCi: first, in the modernsteel structure engineeringWhen the design innovation is very important, innovation should reflect the progress of science and technology, industrial development and The Times characteristic. Design thinking innovation is essential, but it is by no means for weird, after singular. Engineering design in addition to should have new and accident, also should try to use the new system, new technologies, new processes and new materials. Secondly, high quality insteel structure engineeringWhen the design is also very important.steel structure engineeringShould have reliable bearing capacity, enough stability and stiffness, good joint structure and quality of weld connection. As is known to all, the bearing capacity of structure engineering, stability and rigidity is design of three important indicators. But fromsteel structure engineeringAccident investigation and statistics to see, many of the structural system collapse or failure is due to the improper design structure of the node and the key parts of the welding quality of the cause. Because the welding heat cause steel metallographic change and structure in the high residual stress, often in the welded steel structure body there are several kind of high stress in phase superposition fatal hidden trouble. So the hot rolled steel structure is superior to welding structure is self-evident. Third, is convenientsteel structure engineeringUnique advantages, steel structure components should be designed so as to facilitate the manufacture and installation of the production process. Their structure should be simple, smooth and similar, easy to mass production, mass transportation, cluster assembly, joint should try to use high strength bolt connection. So, be helpful for processing and manufacturing in automation, industrialization of fast, the overall installation, so as to avoid the manual workshop is changed, changed the small production processing model and labor intensive field construction method. Finally, in the premise of safety guarantee, the steel strength design method is reasonable and economic. With the application of prestressed new technology can make full use of the steel elastic strength potential, greatly reduce the amount of steel. I think, innovation, high quality, convenient and economicsteel structure engineeringNot is hard to find, in under the guidance of the concept of innovation, the new system, new technology, new material, new technology advantages combined, and must be reflected in the steel structure of the high-quality goods design.
Reporter: let the steel structure building have innovation, high quality, convenient and economic characteristics, still need to architect and structure division support?
LiuCi Lin: yes.
I think, in the large steel structure building in the beginning of the engineering design, in most architects are not familiar with, don't grasp the modern structure, to ensure that design a high-quality goodssteel structure engineering, need to establish the architects and structure division composed of design team, in order to create reflect innovation, high quality, convenient, economic these four elements of the steel structure excellent project. Architects and structure division the two professional design team is the leading professional many professional, closely cooperate with between them is very important.
Although since twenty century, architecture and structure divided in two subject areas, but the success of many modern large construction projects, all reflect the building and structure of two major the importance of close cooperation. Such as: the 1960 Olympic Games in Rome on large and small sports palace, its main designer neel d professor is the structural engineering, but he in the building also has profound attainments. In 1972, Munich cable net structure of the main home library designer otto professor is building specialized graduation, but his doctoral dissertation topic is and who Cable net structure and throughout And, at the beginning of the project started the building and structure of the joint design team. Charles DE gaulle airport lounge Bridges structure cave in accident, then explaining the French architect Andrew to the structure of strange and improper selection, not steel structure itself.
Reporter: how to avoid and who Waste engineering & throughout And against steel structure characteristics of the architectural representation?
LiuCi Lin: I think, in national engineering project, preparation, bidding, design, construction, operation should in certain regulations constraint, avoid artificial influence and interference. This can avoid some & who Waste engineering & throughout Arise, and can build some and less who Ephemeral engineering & throughout . The reasonable human resource use saved more places where they are needed.
I think, reduce and who Waste engineering & throughout The key is in large engineering project, the selected scheme, inviting public bidding and bidding links should be standardized, sunshine change, should be established corresponding board of review editors, members of the board of review editors in professional, qualifications, proportion, etc should be reasonable matching. In the review process, the board of review editors should accept the competent department, social public opinion supervision. When opinion divergence, shall be submitted to the scheme of the Chinese academy of sciences and the Chinese academy of engineering was evaluated, avoid for individual be fond of, leadership decision, the rejected the plan.
Reporter: you think the future large utilitysteel structure engineeringWhat is the development trend of?
Our LiuCi: from numerous domestic and foreign engineering examples and article review point of view, these largesteel structure engineeringWith a common development trend: building modern design is changed, diversified; Structure ZhangLiHua, spatialization; Processing manufacturing industrialization, automation, Installation construction assembly is changed, block change; Based on GaoJiangHua materials, light-duty; Service function efficiency, generalization.
Nearly 30 years, all over the world in the construction of the large public facilities all follow the scientific, innovative, light, simple principle. For example, from early Saudi Riyadh international stadium, to Seoul, Atlantic, and the Olympic stadium in Athens, and 2002 years later the football World Cup stadium and recent construction of India, Germany, Mexico, Portuguese sports venues are accord with the requirement. 2012 London Olympic Games in the construction of the home, also will be lighter and exquisite light roof structure system. This is and who Sustainable development and throughout The law of the world economy, but also the requirements of our country and who practice The scientific concept of development and throughout The surest way.
Reporter: how to produce high-quality goodssteel structure engineering?
LiuCi Lin: first of all, great efforts should be made to improve the overall design level; Secondly, to improve the healthy development of industry operation mechanism; Finally, the construction of legislation as soon as possible, the large building project management into the orbit of legal system. (China construction news)

space truss structure construction should be the independent branchsteel structure