上海交通大学学报(自然版) ›› 2011, Vol. 45 ›› Issue (04): 517-522.

• 建筑科学 • 上一篇    下一篇

某大型机场航站楼结构风载体型系数的数值模拟

 陈祥侨, 涂佳黄, 周岱, 朱忠义, 秦凯   

  1. (1.上海交通大学 船舶海洋与建筑工程学院, 上海 200240; 2.北京市建筑设计研究院, 北京 100045)
  • 收稿日期:2010-08-18 出版日期:2011-04-29 发布日期:2011-04-29
  • 基金资助:

    上海市基础研究重点项目(10JC1407900),国家自然科学基金项目(50778111)

Numerical Simulation of Wind Loading Shape Coefficient  on a New Airport Terminal

 CHEN  Xiang-Qiao, TU  Jia-Huang, ZHOU  Dai, ZHU  Zhong-Yi, QIN  Kai   

  1. (1.School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2.Beijing Institute of Architectural Design & Research, Beijing 100045, China)
  • Received:2010-08-18 Online:2011-04-29 Published:2011-04-29

摘要: 以昆明新机场航站楼工程为背景,基于Fluent软件建立计算模型,采用标准kε 湍流模型,数值模拟结构表面风场风压,并与风洞试验结果对比,获取结构风载体型系数.分析了不同风向角下屋面风载体型系数的分布和产生机理.计算结果表明:计算流体动力学(CFD)数值模拟方法可以较为准确地反映结构表面实际风压的分布规律,但数值方法结果比风洞试验结果的绝对值略偏大;在不同风向角时,屋面风载体型系数变化较大.根据当地风环境条件数值计算并经比较分析而获得的最不利风压分布,可应用于工程抗风的初步设计.

关键词:  , 大跨屋盖结构,  , k&epsilon, 湍流模型, 风载体型系数, 数值模拟, 风洞试验

Abstract: Based on the project of new Kunming Airport Terminal, the wind field and wind pressure distribution of structural surface was simulated by commercial computational software with standard kε turbulent model, while parameter analysis such as coming wind angle was carried out. The investigation indicates that the numerical results of wind pressure distribution on the roof are somewhat greater than the wind tunnel experiment results and the wind loading shape coefficients vary greatly with the coming wind angles. It should be mentioned that the most unfavorable wind pressure distribution should be obtained according to local wind environment, in order to provide a reference for windresistant design of practical eningeering project.

Key words: large span roof structure, kε , turbulent model, wind loading shape coefficient, numerical simulation, wind tunnel test

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