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以2008年奥运会羽毛球馆弦支穹顶结构为研究对象,对上部弦支穹顶、上下部整体结构两个计算模型进行结构自振特性分析、静力及抗震等方面的对比分析,重点研究了下部混凝土结构对上部屋盖钢结构的影响。分析结果表明,下部混凝土结构对上部弦支穹顶钢结构受力和变形有一定影响,尤其是在温度作用及地震作用下受力和变形差别较大。弦支穹顶结构设计应进行上下部结构共同工作分析,并可据此对屋盖钢结构进行优化设计。
Taking the structure of the suspend domes of the 2008 Olympic Games badminton hall as the research object, this paper analyzes the two natural vibration modes of the superstructure, the upper and lower parts of the superstructure by means of static analysis and seismic analysis, Effect of structure on roof steel structure. The analysis results show that the concrete structure of the lower part has some influence on the stress and deformation of the upper chord steel dome, especially under the action of temperature and earthquake. Suspension dome structure design should be carried out on the structure of the joint work of the lower part of the analysis and roof steel structure can be based on the optimal design.