超大直径焊接空心球类节点分析与设计

Analysis and Design of Welded-hollow-spherical Joints with Huge Diameter in a Tree Structure

采用ANSYS大型有限元结构分析软件 ,对深圳文化中心黄金树结构进行了整体分析 ,根据整体分析的数据对结构中复杂的不规则空间结构中的超大直径焊接空心球节点进行了分析设计 ,得出了其应力分布。合理地设计了空心球节点 ,满足强度和稳定性要求。并得出了一些有用的结论。详述了空心球节点计算模型的建立和有限元分析的方法 ,以及分析过程中的约束处理和荷载施加。

Some welded hollow spherical joints of a complex and anomalistics space structure are designed and analyzed by using the analysis software ANSYS on the basis of the datas obtained from the analysis of the entire structure,that is,the Gold Tree structure in the Culture Center in Shenzhen.The distribution of the stress is obtained and the joints are designed which satisfy the requirements of the intensity and stability.At last,some useful conclusions are drawn.The establishment of the calculation model for the welded hollow spherical joints and the finite element analysis method which includes the disposing of the restricts and the exerting of the loadings are recounted in detail.