If say, science and technology developed the word of huge action to have the national stadium project of characteristic alone, so, as only as national stadium the national gymnasium of the Yao of one pace is another platform that reveals innovation of science and technology.
National gymnasium was 2008 the Olympic Games 3 big advocate one of place, the wheelchair basketball project of abstruse meeting will hold the handball of Beijing Olympic Games, gymnastic, artistic gymnastics and damage here. Project of gymnasium steel roof tuss is project of the first two-way Zhang Xian, also be the structure of truss of two-way Zhang Xian with domestic and international the oldest span. Whole roof tuss passes 8 3 to pedestal of fixed ball bore with a reamer, 6 two be in to bearing of pedestal of pedestal of movable ball bore with a reamer and bore with a reamer of 70 one-way and slip balls capital of ferroconcrete strong sex, the project always is 2800 tons about with steel capacity. The big span that is aimed at this 114×144.5 rice structure of reseau of space of two-way Zhang Xian, national gymnasium project always contracts ministry technology personnel begins innovation of science and technology and technology to tackle key problem, the inference that undertakes a few times, experiment and figure, the iteration that organizes an expert for many times argumentation and much program are compared anthology, final make choice of fore-and-aft truss accumulates the plan with tensioning slippage along transverse area demand, application achieves complete success after this technology. When undertaking slippage of steel roof tuss, ” of 9 “ robot is carrying old shell on the back to walk like snail same, slow and mobile, pass so successive 11, last a period of time slippage of 85 days, finish the installation job of housetop steel roof tuss smoothly.
Innovation ensures quality
Design the project of Beijing Olympic Games of ” of concept “ lead, a lot of difficult problem are encountered in construction, also do not have off-the-peg referenced answer in the world, do not have experience more desirable, and the design of these lead and sophisticated construction technology, also achieve actor to increase tremendous difficulty to Olympic Games project and project. All these should rely on innovation of own science and technology to solve. The capital airport that floor area amounts to 550 thousand square metre building of original poster of 3 boat station rinses the project construction area such as concrete wall, column amounts to 165 thousand square metre, be in the world to go up is unique, the country also does not have definition of specific clear water concrete and quality standard, also do not have the mature craft of whole set. To solve this one difficult problem, the project always contracts the ministry established “ to rinse facing concrete task studies group ” and science and technology of concrete of facing of “ clear water tackle key problem group ” , undertake to craft of construction of clear water concrete full-scale technology studies. The development that passes half an year considers to tackle key problem with the technology, successful development goes “ advanced course to avoid adornment to rinse advanced course avoids ” of concrete construction technology and “ ” of technology of control of quality of construction of concrete of adornment clear water. After using a project, the concrete of clear water of 165 thousand square metre of place construction wall, column, bridge, board, not only exterior level off smooth, colour and lustre is consistent, exterior bleb be achieved completely or exceed a project to design a requirement, got manage of design, owner, inspect and the accord of concerned expert reputably, still drew 100 much batch view and emulate comes before domestic and international person of the same trade, expert.
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