外文翻譯----大跨度空間鋼結(jié)構(gòu)應(yīng)用發(fā)展分析

1、<p><b>　　中英文翻譯</b></p><p>　　大跨度空間鋼結(jié)構(gòu)應(yīng)用發(fā)展分析</p><p>　　近年來(lái)，由于現(xiàn)代技術(shù)的支撐和新型材料的加盟，網(wǎng)架、網(wǎng)殼、管桁結(jié)構(gòu)等大跨空間鋼結(jié)構(gòu)獲得了廣泛應(yīng)用。然而，要保證大跨空間鋼結(jié)構(gòu)得以健康發(fā)展，還必須加快一系列空間結(jié)構(gòu)行業(yè)標(biāo)準(zhǔn)的制定，加強(qiáng)鋼結(jié)構(gòu)企業(yè)資質(zhì)認(rèn)證與管理，提升大跨空間鋼結(jié)構(gòu)的設(shè)計(jì)、制作、安裝水平。

2、 上世紀(jì)60年代網(wǎng)架在我國(guó)開(kāi)始獲得應(yīng)用以來(lái)，到80～90年代大、中、小跨度的網(wǎng)架幾乎已遍及各地。以1990年北京亞運(yùn)會(huì)為例，興建的場(chǎng)館中有7個(gè)館采用了網(wǎng)架、網(wǎng)殼結(jié)構(gòu)。在此期間機(jī)械、汽車、化工、輕工等行業(yè)先后興建許多大面積工業(yè)廠房，也大量采用了多種形式的大跨空間鋼結(jié)構(gòu)。近年來(lái)興建的大型公共建筑大多采用了鋼管桿件直接匯交的管桁結(jié)構(gòu)，它們外型豐富、結(jié)構(gòu)輕巧、傳力簡(jiǎn)捷、制作安裝方便、經(jīng)濟(jì)效果好，是當(dāng)前應(yīng)用較多的一種結(jié)構(gòu)體系。 據(jù)專

3、家介紹，在大跨度空間結(jié)構(gòu)中引入現(xiàn)代預(yù)應(yīng)力技術(shù)，不僅使結(jié)構(gòu)體形更為豐富而且也使其先進(jìn)性、合理性、經(jīng)濟(jì)性得到充分展示。通過(guò)適當(dāng)配置拉索，使結(jié)構(gòu)獲得新的中間彈性支點(diǎn)或使結(jié)構(gòu)產(chǎn)生與外載作用反向的內(nèi)力和撓度而卸載，前者即為斜拉結(jié)構(gòu)體系，后者則為預(yù)應(yīng)力結(jié)構(gòu)體系。這一類“雜交”結(jié)構(gòu)體系改善了原結(jié)構(gòu)的受力狀態(tài)，降低內(nèi)力峰值，</p><p>　　The application and development of large-s

4、pan steel structures</p><p>　　In recent years, because of modern technology and new materials to support the accession, the network, Shell and tube truss structure of large-span space steel structure has bee

5、n applied widely. However, to ensure that the large-span space steel structure can develop in a healthy, we must also accelerate a range of spatial structure of the development of industry standards, Steel enterprises to

6、 enhance quality certification and management, and enhance long-span space steel structure design, manu</p><p>　　On the 1960 grid in China since the application was started, to the 80-90's large, Small-s

7、pan truss has almost spread throughout the country. 1990 Beijing Asian Games as an example, the construction of the stadium is used seven Museum of the network, network shell structure. In the meantime machinery, automob

8、iles, chemicals, light industry has built many large industrial plants also extensively used a variety of large-span steel structure. In recent years, the construction of large public buildi</p><p>　　Accordi

9、ng to experts, the large-span space structure prestressed introduction of modern technology, not only helped shape the structure but also enrich their advanced nature, reasonable, economical full display. Through the app

10、ropriate allocation of cable, so that the new structure be flexible fulcrum in the middle or outside and the structure contains reverse role of internal forces and deflection and unloading, namely, the former cable struc

11、ture, which is prestressed structures. This kind of "</p><p>　　Bow Stand structure is Chinese scientists developed a new type of space prestressed steel, it has a clear edge Chuan, forces lighter, faste

12、r construction and removable feature can be used for permanent construction can also be used for removable temporary construction, also has applied to open-roof structure possible. Currently, many colleges and universiti

13、es right Soto structure, Cable network structure with high-strength steel wire with the main load-bearing structure of the new system of pres</p><p>　　Structure of the new material to further promote the lar

14、ge-span steel space development. Ordinary carbon steel in a large number of applications received at the same time, stainless steel, aluminum alloy, The films are also many large-span building is the application. There a

15、re already many international professional production company built a larger alloy structure. China's Tianjin University, Tongji University, Shanghai Modern Design Group, China Architectural Science Research Institut

16、e has be</p><p>　　Membrane structure of the current rise of China is a spatial structure, which is the application of more tension membrane structure. This is a glass fiber fabric or polyester fabrics for th

17、e grass - a Teflon or PVC coating to the membrane with different types of support systems for the combination, and the supporting system for cable-pillar or cable-bar structure, they often receive prestressed membrane af

18、ter work together. Support system can be applied bar structures, such as space truss, shell</p><p>　　Technology advances in space for the large-span steel structure of the development also create favorable c

19、onditions. In recent years computing technology have made great progress, many units developed a commercialization exclusive design procedures They are based on theoretical research with the large number of projects on t

20、he basis of practice and push the market. They generally have sound before and after processing, the computer complex on the space grid structure design. Some of the software</p><p>　　With the current inter-

21、steel space-related protocols specification has been gradually toward perfect. If STEEL design code, as amended, will further improve, such as possession of large-span truss space steel structure based on the design more

22、. Shell technical specification will enable the establishment of the network shell structure design and construction of the establishment of a more reliable basis. Other types of order, norms and standards are being deve

23、loped or among gradually improve. Cur</p><p>　　With the in-depth theoretical study and practice of a substantial increase, Chinese scientists will further developed in light of China Steel large-space requir

24、ements for new systems, new technologies, new materials, and to more fully reflect long-span space structure of the advanced nature, economy and reasonable. prompted my long span steel structure more positive and healthy