自立式三管钢烟囱顺风向风振系数研究  

Study on along wind-induced vibration coefficient of self-support three-pipe steel chimney

作　　者：赵春晓[1] 张益国[1] 

机构地区：[1]河北省电力勘测设计研究院,石家庄050031

出　　处：《建筑结构》2015年第19期72-75,共4页Building Structure

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。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.

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 

分 类 号：TU233[建筑科学—建筑设计及理论]