电力勘测设计Issue(3)：21-25,5.DOI:10.13500/j.dlkcsj.issn1671-9913.2025.03.004
钢管塔杆件微风振动条件下的结构安全性研究
Study on Structural Safety of Steel Tube Tower under Aeolian Vibration
摘要
Abstract
The steel tube tower of transmission line in the open terrain condition may have aeolian vibration when slenderness ratio is large.In this paper,considered the influence of lift coefficient with the change of Reynolds number on resonance force and fatigue stress amplitude,the structural safety of steel tube tower under breeze vibration is discussed.Taking a 1 000 kV UHV AC transmission line project as an example,the structural fatigue damage caused by breeze vibration is evaluated based on meteorological data.The results show that,according to the existing standards,the stress caused by the breeze vibration is far less than the strength design value,and the stress level can hardly cause the fatigue damage on the rod during the 50-year design life.However,in the slenderness ratio of 120～150,there is a greater possibility of the breeze vibration on the rod,and the long-term vibration may cause the bolt loosening and other adverse effects,which needs attention.关键词
输电线路/钢管塔/微风振动/升力系数Key words
transmission line/steel tube tower/aeolian vibration/lift coefficient分类
动力与电气工程引用本文复制引用
夏谦,于嵩松,吴海洋..钢管塔杆件微风振动条件下的结构安全性研究[J].电力勘测设计,2025,(3):21-25,5.基金项目
国家电网公司总部科技项目"考虑环境因素影响的输电线路钢管塔涡激振动疲劳及控制技术研究"(5200-202156071A-0-0-00). （5200-202156071A-0-0-00）
