济宁文体中心体育场钢屋盖结构设计

济宁文体中心体育场下部采用钢筋混凝土框架结构,屋面采用空间钢管桁架结构。屋面体系由径向主桁架、环向桁架与支撑一起构成。重点介绍了该结构在分析和设计中的关键问题,结构体系的布置及荷载取值。采用ANSYS软件进行了考虑几何及材料非线性的整体稳定性分析,同时对该结构采用的关键节点形式进行了分析,对此类结构的特点进行了探讨。计算分析表明,结构构件的应力比、变形及结构整体稳定性均能满足设计要求,同时通过在设计中采用滑动型节点有效降低了结构的温度效应。

Structure design on steel roof of Jining Sports Stadium

Reinforced concrete frame structure and spatial tube trusses are adopted in Jining Sports Stadium.Roof system are composed of radial truss,link truss and brace.The key issues of design and research about the structure,the layout of the structure system and design loads were introduced.And the stability of the steel structure considering the geometric nonlinearity and material nonlinearity was analyzed by ANSYS software.The key joints were investigated.Some characteristics were also discussed.The results show that the stress ratio,deformation of structure member and stability of overall structure can meet the design requirements.The temperature stress of the whole structure is reduced by slide joints.