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索膜结构的关键构件和节点的设计是整个世博轴工程的重要技术环节,节点设计不仅要满足自身的受力要求,而且必须符合结构整体协同工作的要求;节点构造的设计充分体现了结构在受力安全、建筑美学、制作工艺等各项专业的综合技术.本工程的关键节点设计充分结合了世博轴索膜顶棚跨度大、位移大、几何非线性特征较强等特点,研究创新了一系列的节点构造,采用有限元进行细部计算分析,并且通过结构试验和测试,论证了结构的关键构件及节点设计不仅满足建筑美观要求,又在结构上富含技术特点.
The key components and nodes of cable membrane structure design are the important technical links of the whole Expo Axis Project. The node design not only meets the requirements of its own stress, but also must conform to the requirements of the overall coordination of the structure. The design of the node structure fully reflects the structure Mechanical safety, architectural aesthetics, manufacturing technology, etc. The design of the key nodes of this project fully combines the features of large span of the Expo Axis membrane roof with large displacement and strong geometric nonlinearity, Series of node structure, the finite element analysis and detailed calculations, and through structural tests and tests demonstrated that the key components of the structure and node design not only meet the aesthetic requirements of buildings, but also in the structure is rich in technical features.