长扁圆形烟囱风致振动风洞模拟试验研究  

Wind Tunnel Simulation Experiment Investigation to Wind Caused Vibration of Long Flat Roundness Chimney

作　　者：袁子厚[1,2,3] 陈明祥[3] 

机构地区：[1]武汉科技学院理学院,湖北武汉430073 [2]重庆交通大学桥梁结构工程重点实验室,重庆400074 [3]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《华中科技大学学报（城市科学版）》2008年第3期46-49,共4页Journal of Huazhong University of Science and Technology

基　　金：重庆交通大学结构工程重点实验室项目(20040005CQBSLab06-5);武汉科技学院项目(2008Z07)

摘　　要：由于长扁圆形烟囱外形特殊,风荷载规范中没有其体型系数。为了确定长扁圆形烟囱的体型系数,作者借助风洞试验方法。本文主要阐述了长扁圆形烟囱气动弹性风洞试验情况:试验模型采用完全弹性模型,主要考虑了几何相似、动力相似、来流条件相似等几个主要的相似性条件,用热线风速计测量风速,用激光测振仪测量烟囱振动速度和位移,实测了烟囱根部的应变以及横风向风振情况,此结果可用于推求烟囱体型系数,可供此类烟囱设计时参考。Since the shape of long flat roundness chimney is special, there is no body shape coefficient in wind load code. In order to determine the bodily form coefficient of long flat roundness chimney, the wind tunnel simulation experiment method is used by the authors. This paper introduced aerodynamic elastic wind tunnel experiment of long flat roundness chimney, the experiment model is elastic and has several primary similitude conditions （geometry, dynamical, coming flow conditions）, wind speed is measured by heat line anemometer, vibration speed and displacement of chimney are measured by laser shock measuring instrument. The author measured the strain at the chimney base and crosswind vibration, the results can be used to obtain chimney body shape coefficient and as the reference in chimney design.

关 键 词：烟囱 气动弹性 风洞试验 体型系数 

分 类 号：TU352.2[建筑科学—结构工程]