2008年奥运会老山自行车馆结构优化设计计算

2008年奥运会老山自行车馆屋面钢结构为大跨度的双层网壳体系,在主体基础承台已完工的情况下,进行结构优化,并对优化后的结果进行了静力与抗震计算分析。结果表明,优化方案在使用成熟工艺、技术的前提下,有效降低了结构用钢量,结构应力、位移与杆件稳定满足使用要求,达到了节省工程投资的目的。结合更深入的整体分析和节点设计,整体材料用量仍有进一步减少的可能。

OPTIMIZING STRUCTURAL DESIGN AND CALCULATION OF THE BICYCLE ARENA OF OLYMPIC GAMES IN 2008

The steel-structure roof of the bicycle arena of 2008 Olympic Games is designed as a large-span doublelayered grid shell. An optimizing structural design was made after the foundation has been completed. The topic brings forward an effective proposal based on static and seismic analyses. The budget can be abated as the amount of usage of steel material is markedly reduced with only well-developed methods and technologies. The stress level, deformation and stability all satisfy the demands from the Codes. With more deeply holistie design and detail development, the material used can be decreased further.