带外装饰自立式钢烟囱加设阻尼器的设计分析  

Design and analysis of self-standing steel chimney with external decoration and damper

作　　者：刘智敏 刘思远 李猛 Liu Zhimin;Liu Siyuan;Li Meng(China IPPR International Engineering Company,Beijing 100086,China;China Construction Third Engineering Bureau Group Co.,Ltd.,Chengdu Sichuan 610000,China)

机构地区：[1]中国中元国际工程有限公司,北京100086 [2]中建三局集团有限公司,四川成都610000

出　　处：《山西建筑》2023年第22期72-74,87,共4页Shanxi Architecture

摘　　要：自立式钢烟囱属柔性高耸悬臂结构,结构阻尼较小,横风向风振对其起控制作用。结合一个63 m高的带外装饰自立式钢烟囱的设计实例,从方案选择、减小及消除横风向风振对烟囱影响的方案进行了比较,并通过软件计算结果详细比较加设阻尼器前后的位移及受力分析,得出破风圈无法满足设计要求时,安装阻尼器减小横风向风振是带外装饰自立式钢烟囱一种很好的选择,为以后的工程设计提供依据。The self-standing rigid chimney is a flexible high-rise cantilever structure with small damping,which is controlled by lateral wind-induced vibration.This paper analyzes the design of a 63-meter-high self-supporting steel chimney with external decoration,from the scheme selection,the scheme comparison of reducing and eliminating the influence of lateral wind vibration on chimney,and through the result of software calculation,the displacement and force analysis before and after adding damper are compared in detail,it is concluded that it is a good choice to install dampers to reduce the transverse wind vibration when the broken wind ring can not meet the design requirements.

关 键 词：自立式钢烟囱 阻尼器 横风向风振 

分 类 号：TU233[建筑科学—建筑设计及理论]