Ganzhou West Station is the largest high-speed railway station on the Beijing-Hong Kong high-speed railway in Ganzhou City,with a novel architectural design.To fit the architectural style,the upper steel structure has characteristics such as large-span,irregular shape,complex nodes,and ultra-high through story columns.Through methods such as overall structural analysis,ultimate bearing capacity analysis of steel structures,buckling analysis of front steel structures,finite element analysis of complex nodes,and through story column analysis,steel cables are installed outside the plane of the open web truss,and key nodes of the spatial steel grid structure are designed for ultra-high through story columns to ensure the reliability of the structural design.The results indicate that steel cables can effectively ensure the out of plane stability of the open web truss.The elastic and elastic-plastic full process buckling analysis shows that the safety factor of the roof is greater than 2.0 all the time.The ultimate and stable bearing capacity of the roof steel structure meet the design requirements;The cast steel nodes are still in an elastic state under rare earthquake action,meeting the performance design requirements.The key nodes of cast steel balls effectively solve the problem of excessive height in the through layer column,further improving the stability and ultimate bearing capacity of the through layer column.
关键词
赣州西站/大跨钢结构/极限承载力分析/静力稳定分析/空腹桁架/穿层柱
Key words
Ganzhou West Station/large-span steel structure/ultimate bearing capacity analysis/static stability analysis/vierendeel truss/through story column
维普
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