（中国建筑标准设计研究院， 北京 100048）

［摘要］石家庄站站棚为无站台柱雨棚，站棚屋面采用连续多跨柱面网壳结构，网壳通过主构件支承在钢管柱上。两列边柱采用钢管混凝土柱，以提高结构抗侧刚度，为网壳提供可靠的边界约束。由于网壳结构的曲面造型，温度效应对屋面超长结构的内力不起控制作用。综合考虑材料非线性和几何非线性的影响，对站棚网壳结构进行了极限承载力分析和弹塑性时程分析，后者同时考虑行波效应的影响。分析结果表明，钢管混凝土边柱为网壳提供了有效的侧向约束，网壳结构具有足够的承载力安全系数；站棚结构具有良好的抗震性能。

［关键词］石家庄站； 无站台柱雨棚； 钢管混凝土柱； 网壳结构； 行波效应

中图分类号：TU318， TU393-3文献标识码：A文章编号：1002-848X(2016)19-0030-05

Structural design of the canopy in Shijiazhuang Railway Station

Zhang Linzhen,  Yu Yinquan,  Jiang Hangjun,  Peng Mingying,  Xiao Ming,  Peng Yubin,  Xing Wanli

(China Institute of Building Standard Design & Research,  Beijing 100048,  China)

Abstract:The canopy of Shijiazhuang Railway Station is a non-platform column canopy. Continuous multi-span cylinder latticed shell structure is used in canopy roof and latticed shell is supported on the steel pipe columns by main members. The two arrays of side columns are concrete-filled steel pipe columns  to increase the lateral stiffness of the structure and provide credible boundaries constraints. Because of the curved surface of the latticed shell structure,  the temperature effect is not the controlling factor to the inter force of the super-long roof structure. Considering the influences of material nonlinearity and geometric nonlinearity,  the ultimate load bearing capacity analysis and elastic-plastic time-history analysis were carried out. Meanwhile,  the traveling-wave effect was also taken into account for the elastic-plastic time-history analysis. The analysis results show that the concrete-filled steel pipe columns on the two sides provide effective lateral restraints for the latticed shell,  so the safety factor of the latticed shell′s load-bearing capacity is large enough for requirement. The whole canopy structure has good seismic performance.

Keywords:Shijiazhuang Railway Station； non-platform-column canopy; concrete-filled steel pipe column; latticed shell structure; traveling-wave effect

作者简介：张林振，硕士，高级工程师，一级注册结构工程师，Email：281161992@qq.com。