When wind acts on the transmission tower, the aerodynamic instability and vibration of transmission tower often occur. This phenomenon may threaten the safety and reduce the service ability of the transmission lines. In this paper, the aeroelastic model of the typical transmission towers is designed by a new method based on the structural dynamics similarity principle to investigate the wind-induced response of the transmission towers. Then, the dynamic characteristics of the aeroelastic model are analyzed by finite element analysis software and a measurement system, and the accuracy of the aeroelastic model is proved. Finally, the wind tunnel test of the model is performed with different wind speeds and wind directions. The results show that the wind-induced response of the model increases with the increasing of the wind speed, and the response in the Y-direction is significant. According to the test results, the characteristics of the wind-induced response and the dynamic performance of the typical transmission tower are obtained, which can be applied as references to anti-wind design and upgrade of the transmission towers.%输电塔结构受到风荷载激励,极易引起其气动弹性失稳,造成大幅振动,严重威胁着输电线路安全稳定运行.为研究高压输电塔结构风振动力特性,以某典型输电塔为原型,按照结构动力学相似准则,采用一种新型设计方法制作输电塔气弹模型,并利用有限元分析软件以及相关测试系统对其进行动力学分析,验证气弹模型的准确性.最后,进行不同风速和风向角下的气弹模型风洞试验.试验结果表明:输电塔模型的响应随风速增大而增大;输电塔横风向响应显著;通过对试验结果的对比分析,揭示了典型输电塔结构动力特性和风振响应特点,为高压输电线路抗风设计及改造提供依据.
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