(奥雅纳工程顾问， 广州 510610)

摘要: 介绍了贵阳某球场钢结构罩篷受力体系的比选过程，考虑内外场的建筑美观性、结构材料费用和施工措施、施工工期等，详细分析了各种结构体系的优势和劣势。 基于选定的悬臂桁架结构方案，通过分析和比对各种结构方案，结果表明立体悬臂桁架的稳定性更好，对环向构件的数量需求小，便于施工。 在罩篷的对比分析过程中，创新性提出了适用于大跨悬挑屋盖结构的单环索承悬臂结构和双级环索车辐式弦支网壳结构，可有效减小屋盖结构厚度和材料用量；当屋盖厚度相同时，双级环索车辐式弦支网壳结构抵抗竖向荷载的效率比单环索承悬臂结构高约 30%。 由于拉索单价高于型钢，施工难度也更大，采用拉索比例越高，钢结构罩篷的经济性能越差。

关键词: 钢结构罩篷； 悬臂结构； 单环索承悬臂结构； 双级环索车辐式弦支网壳

中图分类号:TU973 文献标志码: A 文章编号:1002￣848X(2022)02￣0064￣07

DOI:10. 19701 / j.jzjg.ZJ210064

Comparison and selection of design schemes for the canopy structure of a stadium in Guiyang

HOU Shengli， ZHANG Chi， ZHANG Guosheng， ZHOU Zhangxin

(Arup， Guangzhou 510610， China)

Abstract: The comparison and selection process of the force system of the steel structure canopy of a stadium in Guiyang.The advantages and disadvantages of various structure systems were analyzed in detail， considering the architectural beautyof the internal and external fields， the cost of structural materials and construction measures and the construction period.Based on the selected cantilever truss structure scheme， through analysis and comparison of various structural schemes， theresults show that the stability of the three￣dimensional cantilever truss is better， and the demand for the number ofcircumferential members is small， which is convenient for construction. In the process of comparison and analysis of thecanopy， innovatively proposed the single￣loop cable￣supported cantilever structure and the double￣stage loop cable spokestype chord support reticulated shell structure， which can effectively reduce the roof structure thickness and materialconsumption. When the roof thickness is the same， the double￣stage loop cable spokes type chord support reticulated shellstructure is about 30% higher than the single￣loop cable￣supported cantilever structure to resist vertical loads. Since the unitprice of the cable is higher than that of the section steel， the construction is more difficult， the higher the proportion ofcables， the worse the economic performance of the steel structure canopy.

Keywords: steel structure canopy； cantilever structure； single￣loop cable￣supported cantilever structure； double￣stage loopcable spokes type chord support reticulated shell structure

第一作者:侯胜利，硕士，高级工程师，一级注册结构工程师，从事超高层、大跨、连体、转换等复杂工程抗震、抗风和设计优化研究，Email:sheng￣li.hou@ arup.com。

[引用本文] 侯胜利，张弛，张国晟，等. 贵阳某球场罩篷结构设计方案比选[ J]. 建筑结构，2022，52(2):64￣70.HOU Shengli， ZHANG Chi， ZHANG Guosheng， et al. Comparison and selection of design schemes for the canopy structureof a stadium in Guiyang[J]. Building Structure，2022，52(2):64￣70.