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This paper combines the Shenzhen Cultural Center Project gold tree node Steel giant welded hollow spherical joints ( diameter 1.1m to 3.0m , wall thickness 22mm to 32mm ) calculated from the theory of complex space . According to the existing literature search , such a massive nodes at home and abroad there is no precedent . Our current network structure design and construction procedures ( JGJ7 - 91 ) applies only within the hollow ball diameter φ500 , so massive node is no longer applicable . In this thesis, the giant welded hollow spherical joints primaries diameter , wall thickness , the calculation method . Design node program with the original cast steel nodes techno-economic and practicality compared five options ( steel solid cast steel hollow , cast empty heart , Welding Ball ribbed hollow , welding balls in the ball ) contrast , according to the results of the comparison , recommended ribbed welded hollow spherical joints . To this end, the on gold tree structure by five load cases , from checking the strength and stability in design of the overall analysis. Carried out a careful calculation of welded hollow spherical joints , constructed from material selection to the ball , type and parameters are to conduct a comprehensive consideration ANSYS analysis software for the selected node of force and deformation performance analysis . Engineering practice , node production process . Analysis calculations show that the choice of welded hollow spherical joints in the design loads , the mechanical properties good , safe and reliable technology is mature, relatively simple construction , economy , etc. , welded hollow spherical joints . For temperature stress analysis needs further study. The mechanical properties of welded hollow spherical joints should be related test supplement .
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