（1 电力规划总院有限公司， 北京 100120； 2 中国电力科学研究院， 北京 100055）

［摘要］输电钢管塔的某些圆截面构件在一定条件下会发生由卡门涡街引起的横风向振动，持续振动可能会造成结构破坏。目前抑制该振动的方法主要采用限制构件一阶起振临界风速即间接限定构件长细比。借鉴输电线路导地线微风振动的防振锤抑制方法，研究了采用防振锤抑制钢管构件的涡激风振，提出了钢管构件涡激风振抑制用防振锤的参数设计计算及优化方法，并通过试验验证了该方法的良好抑制效果，研究成果为钢管塔的涡激风振防治提供一种新的技术方案。

［关键词］输电钢管塔； 涡激风振； 防振锤； 振动抑制

中图分类号：TM753文献标识码：A文章编号：1002-848X(2016)14-0030-06

Study on suppression method with dampers against vortex-shedding induced wind vibration of transmission steel tubular tower members

Yang Jingbo1, Li Xilai1, Duan Songtao1, Liu Shengchun2

(1 Electric Power Planning & Engineering Institute, Beijing 100020, China; 2 China Electric Power Research Institute, Beijing 100055, China)

Abstract:Some circular section members of transmission steel tubular tower tend to present Karman vortex-shedding induced vertical direction wind vibration under some conditions. The continual vibration may cause damage to tower structures. Current method to suppress the vibration mainly adopts limiting the first order critical wind velocity for vibration or confining the value of slenderness ratio of some tubular members indirectly in other words. Reference to the suppression method with dampers against breeze vibration of conductors and ground lines for transmission line, suppression method with dampers against vortex-shedding induced wind vibration of transmission steel tubular tower members was studied. Parameters design, calculation and optimization of dampers against vortex-shedding induced wind vibration of steel tubular members were proposed. Good suppression effectiveness of the method was verified by vibration tests and study achievements provided a new technological scheme for vortex-shedding induced wind vibration protection of steel tubular towers.

Keywords:transmission steel tubular tower; vortex-shedding induced wind vibration; damper; vibration suppression

作者简介：杨靖波，博士，教授级高级工程师，Email: jbyang@eppei.com。