(1 青岛腾远设计事务所有限公司， 青岛 266100；2 北京市建筑设计研究院有限公司， 北京 100045)

［摘要］ 凤凰之舟大剧院钢结构造型复杂，设计难度极大。重点介绍了钢结构整体稳定分析和颈部斜柱稳定计算方法。对于钢结构的整体稳定分析，采用了纯钢结构模型和整体结构模型进行不同的屈曲分析，并分别考虑了几何非线性和双重非线性的影响；颈部斜柱的稳定计算则采用了屈曲分析确定计算长度的方法。结果表明：钢结构的整体稳定和斜柱稳定计算均安全可靠。 

［关键词］凤凰之舟大剧院；整体稳定分析；屈曲分析；几何非线性；双重非线性；计算长度系数 

中图分类号：TU393-3 文献标识码：A文章编号：1002-848X(2021)22-0022-04

Stability design on steel structure of Phoenix Boat Grand Theater 

WANG  Zaifeng1,  SUN  Shaodong1,  YU  Donghui2,  LIU  Yuchen1 

(1 Qingdao Tengyuan Design Institute Co., Ltd., Qingdao 266100， China；2 Beijing Institute of Architectural Design, Beijing 100045， China) 

Abstract:  The steel structure of  Phoenix Boat Grand Theater is complex in shape and extremely difficult to design. The overall stability analysis of the steel structure and the calculation method for the stability of the inclined column at the neck were emphatically introduced. For the overall stability analysis of the steel structure, the pure steel structure model and overall structure model was used for different buckling analysis, and the effects of geometric nonlinearity and dual nonlinearity were respectively considered. For the stability calculation of the neck inclined column, the method of buckling analysis was used to determine the calculated length. The results show that the overall stability of the steel structure and the calculation of the stability of the inclined column are safe and reliable. 

Keywords:Phoenix Boat Grand Theater； overall stability analysis； buckling analysis； geometric nonlinearity； double nonlinearity； calculated length coefficient

作者简介：王再峰，硕士，高级工程师，Email: 276651974@qq.com。