"Bird's nest" national stadium steel structure

"Bird's nest" national stadium steel structure first hoisting successsteel structure disgn With the construction of the difficulty of the national Steel Structure Building disgn Has experienced a long process, from concept design to design, from the roof can be opened, to cancel the open roof, roof openings. The "bird's nest" scheme of weaving shape steel structure modelling is unique, but greatly improve the construction difficulty accordingly. Maximum cross section truss column x 20 m, 25 m height is 67 m, single heaviest cross 600 tons. Main truss height of 12 m, the double cross through the largest span of 258.365 m, component size, heavy weight monomers. To decrease the difficulty of components assembled truss column USES lie to spell, will use the main truss flat spelling (inner ring main truss stand spell except), so that component of the vertical lifting, hoisting in place extremely hard and high stability. And facade secondary structure weight is relatively small, but oddly shaped, and tilt outward, operation platform, and it is difficult to set and stability measures.
Shanghai treasure smelting construction national stadium project department would make each project is the project's concept, all up and down together, overcome difficulties, to overcome technical difficulties one by one, make sure that the first piece of truss column hoisting on schedule, to treasure smelting construction fired the first shot in the construction of the national stadium, also treasure smelting Steel Sheds http://www.jingtabuilding.com/steel-sheds.html of the construction of the brand to a heavy sum.
Construction steel structure
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