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Beijing Olympic construction Introduction:"Nest" by the appearance of the main gate of the huge steel frame components, a total of 24-Truss, 20 have now completed the entire truss-and two-under-loading. National Stadium construction saddle-shaped roof, the long axis of 332.3 meters and 296.4 meters for the short axis, the maximum height of 68.5 meters points, the lowest point height of 42.8 meters. In maintaining a "nest" the same architectural style, under the premise of the new layout design of the structure and building cross-section form, material utilization, and other issues of a more substantial adjustment and optimization. The original design of the roof can be opened in the cancellation of the roof opening to expand, through the steel structure and the optimization of greatly reducing the volume of steel. Large-span roof trusses support in the 24-on, Zhuju to 37.96 meters. The main roof trusses on the middle of the radiation-shaped openings layout, 22 Pin through or near the main truss through. To avoid too complex nodes, a small amount of the main truss in the inner ring near the cut-off. Steel used by the large number of welded steel plate from the box-member, cross-layout of the main truss and the roof and the elevation of the structure together formed a "nest" of special architectural modeling. Main grandstand part of a framework of a shear wall of reinforced concrete structure, with large-span steel structure completely undocked from.Membrane structure of the perfect embodiment - Water CubeMembrane structure construction is the most representative of the 21st century a new architectural forms, has become a large-span space building one of the main form. It sets architectural, structural mechanics, fine chemicals, materials science and computer technology as one, a landmark construction of the space structure, which not only reflects the strength of the United States, also fully demonstrated the architects envisaged, enjoy nature Romantic space. In the 2008 Olympic Games in architectural design, the application of membrane structures on the perfect embodiment."Water Cube" is the world's largest film structural engineering, in addition to the ground, have adopted the appearance of the film --- ETFE structure of materials, the blue surface of unexpected and very soft but substantial. National Stadium project contracting, general manager of Tan Xiaochun revealed that the life span of such material for more than 20 years, but the actual longer than this, one can stand on the above walk, I feel special rods. The world at present only three companies to complete the membrane structure. |
