大型冷却塔结构风致稳定和风振效应研究进展  

Review on Wind-Induced Stability and Vibration Effect of Large Cooling Towers

作　　者：赵林[1] 陈旭 柯世堂[3] 张军锋[4] 葛耀君[1] ZHAO Lin;CHEN Xu;KE Shitang;ZHANG Junfeng;GE Yaojun(State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University Shanghai,200092,China;School of Civil Engineering,Shanghai Normal University Shanghai,201418,China;Department of Civil and Airport Engineering,Nanjing University of Aeronautics and Astronautics Nanjing,210016,China;School of Civil Engineering,Zhengzhou University Zhengzhou,450001,China)

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]上海师范大学建筑工程学院,上海201418 [3]南京航空航天大学土木与机场工程系,南京210016 [4]郑州大学土木工程学院,郑州450001

出　　处：《振动．测试与诊断》2022年第1期1-10,190,共11页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(52008247,52078383,52008314);土木工程防灾国家重点实验室自主课题联合资助项目(SLDRCE19⁃B⁃11)。

摘　　要：伴随我国经济快速发展,火/核电厂大型冷却塔建设保持快速增长势头,呈现超高、超大的发展趋势。风荷载作用下的冷却塔塔筒壳体风致稳定和结构风振效应成为结构设计建造的关键控制因素。笔者从理论分析、试验模拟、数值计算、现场实测4个方面论述了冷却塔风致稳定和风振效应系列研究进展,阐明了基于环向均匀加载的冷却塔稳定验算公式难于适用复杂风压条件下壳体弹性稳定分析与评估,强调了基于现场实测建立超高雷诺数条件下动态绕流物理风洞试验模拟准则的必要性,推荐开展风致动力分析中冷却塔结构阻尼比实测工作。面向台风和龙卷风等特异风灾气候结构效应研究的现实需求,亟需开展特异风场作用下大型冷却塔壳体失稳和结构风振效应和机理的研究。With the rapid development of China´s economy,the construction number of cooling tower in thermal/nuclear power plants in China keeps a rapid increase and the cooling tower structure tends to be ultra-high and su⁃per-large.The wind-induced shell stability and vibration effect have become key factors in the structural design and construction of cooling towers.A series of research progresses on wind-induced stability and wind-induced vibration effect of cooling towers are reviewed in this paper from the four aspects,including theoretical analysis,experimental simulation,numerical calculation and field measurement.It is demonstrated that the shell stability checking formulas based on uniformly-distributed circumferential wind loads are not suitable for the shell stabili⁃ty investigations of large cooling towers under the complex wind pressures.The necessity to establish the simula⁃tion criterion of dynamic flow at ultra-high Reynolds number adopted in the physical wind tunnel test based on the field measurements is emphasized.The field measurement of structural damping ratio values of cooling tow⁃ers during the wind-induced dynamic analysis is suggested.In the future,it is urgent to carry out the studies on the shell instability performance and the mechanism of structural wind-induced effects under the actions of nonsynoptic winds such as strong typhoons and tornadoes to meet the increasing design and construction demands of large cooling towers.

关 键 词：大型冷却塔 风致稳定 风致振动 现场实测 特异风灾 

分 类 号：TU33[建筑科学—结构工程]