| 摘要 |
PURPOSE: A truss joint structure is provided to minimize the influences of residual stress and heat caused by overlapped welding, prevent the concentration of stress, and improve the stability of a truss structure. CONSTITUTION: A truss joint structure comprises a plurality of steel pipes(100) and a joint(200). The joint is provided in the position where the steel pipes get together and coupled to an end of each steel pipe. The joint is casted into a sphere, cylinder, or polygonal column shape.
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