自立式三管钢烟囱顺风向风振系数研究
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（河北省电力勘测设计研究院， 石家庄 050031）
［摘要］采用风洞试验和数值分析相结合的方法，根据随机振动理论，针对不同的风向角、不同的烟囱间距和横向支撑刚度，对自立式三管钢烟囱的风振系数进行研究,揭示了其干扰机理，得到了研究工况范围内自立式三管钢烟囱的风振系数取值建议，为该类钢烟囱抗风设计提供参考。［关键词］自立式三管钢烟囱; 风振系数; 随机振动理论; 自振频率中图分类号：TU233 文献标识码：A 文章编号：1002-848X(2015)19-0072-04
Study on along wind-induced vibration coefficient of self-support three-pipe steel chimneyZhao Chunxiao, Zhang Yiguo(Hebei Electric Power Design Research Institute, Shijiazhuang 050031, China)Abstract: By combined methods of wind tunnel test and numerical analysis, the study on wind-induced vibration coefficient of self-support three-pipe steel chimney was conducted based on the random vibration theory in view of different wind directions, different steel cylinder spacing and lateral support stiffness. The interference mechanism was revealed, and the suggestions on value selection of the wind-induced vibration coefficient for the chimney under studied working conditions were given, which provided reference for wind resistance design of similar steel chimney.Keywords: self-support three-pipe steel chimney; wind-induced vibration coefficient; random vibration theory; natural vibration frequency
作者简介：赵春晓，学士，教授级高级工程师，Email：hbedzcx@sina.com。
