摘要
为了减轻脱排一体式钢塔的风致振动,采用调谐质量阻尼器(TMD)控制装置,对其进行风振控制研究。利用ADINA有限元软件,进行脱排一体式钢塔的风洞数值模拟与时程分析,并对脱排一体式钢塔结构进行现场实测,现场实测结果与数值模拟结果误差在15%之内,验证了数值模拟方法的准确性。根据脱排一体式钢塔的结构特性,合理设计了TMD控制装置。进行风荷载作用下设置TMD的脱排一体式钢塔时程分析,结果表明,TMD控制装置可以增加脱排一体式钢塔的等效阻尼比,有效降低脱排一体式钢塔的整体位移、加速度响应与结构底部应力响应,但会增大结构上部与中部的应力响应。TMD与主体结构相对位移较小,可对TMD控制装置进行优化设计。
In order to reduce the wind-induced vibration of integrated steel tower,the tuned mass damper (TMD) control device was used. With the finite element software of ADINA,the wind tunnel numerical simulation and time history analysis of integrated steel tower were carried out,and the field measurement of integrated steel tower structure was performed. The difference between the field measurement results and the numerical simulation results is within 15%,which verifies the accuracy of the numerical simulation method. According to the structural characteristics of integrated steel tower,the TMD control device was designed reasonably. Time history analysis of integrated steel tower with TMD under wind load was carried out. The results show that TMD control device can increase the equivalent damping ratio of the tower,effectively reduce the overall displacement,acceleration response and structural bottom stress response of the tower,and increase the stress response of the upper and middle part of the structure. The relative displacement between TMD and main structure is small,so the TMD control device can be optimized.
作者
陈磊
宋波
王希慧
劳俊
锹田泰子
CHEN Lei;SONG Bo;WANG Xihui;LAO Jun;KUWATA Yasuko(College of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing International Cooperation Base for Science and Technology-Aseismic Research of the Rail Transit Engineering in the Strong Motion Area,Beijing 100083,China;Beijing Guodian Longyuan Environment Engineering,Beijing 100039,China;Department of Engineering,Kobe University,Kobe 657-8501,Japan)
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2020年第S01期25-35,共11页
Journal of Building Structures
基金
国家重点研发计划(2017YFF0205003)
国家自然科学基金项目(51178045)
关键词
脱排一体式钢塔
调谐质量阻尼器
风振控制
现场实测
数值模拟
风致响应
integrated steel tower
tuned mass damper
wind-induced vibration control
field measurement
numerical simulation
wind-induced response
