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阐述了北京奥运会主火炬塔的结构方案及研发的技术难点,及在鸟巢屋面复杂风环境下火炬塔的抗风研究与设计。介绍了火炬塔风洞试验的方法及结果,给出了火炬塔最不利风工况组合下的三维力学分析结果。
The structural scheme of the main torch tower of the Beijing Olympic Games and the technical difficulties in research and development were elaborated. The research and design of wind resistance of the torch tower under the complicated wind environment of the bird’s nest roof were also described. The methods and results of the wind tunnel test of the Torch Tower are introduced. The results of the three-dimensional mechanical analysis of the most unfavorable wind conditions of the Torch Tower are given.