刘  文
    (东南大学建筑设计研究院  南京 210096)

[提要]  南京国际展览中心跨度75m的钢管拱架按74.85m设计，设计时利用了结构的变形；采用钢管相贯焊接节点技术。该工程为今后大跨度钢结构的设计提供了有益的经验。
[关键词]  大跨度钢结构  钢管拱架  钢管相贯焊接节点  风洞试验

By considering of the structural deformation, the span of the vaulted tubular steel space truss in Nanjing International Exhibition Center is designed and manufactured as 74. 85m which is smaller than the actual one 75m.  The tubularfull penetration butt-welded joint technology is adopted. This structure design method provides profitable reference for the following large span steel structure.
Keywords: large span steel structure;  vaulted tubular steel space truss;  tubular full penetration butt-welded joint; wind tunnel test