特高压输电线路钢管塔杆件微风振动防治措施  

Prevention Measures for Aeolian Vibration of Members in Steel Tube Tower of UHV Transmission Lines

作　　者：颜俊卿 周文灿 郭磊 许诗民 YAN Junqing;ZHOU Wencan;GUO Lei;XU Shimin(Jiangsu Power Transmission&Transformation Co.,Ltd.,Nanjing 210028,China)

机构地区：[1]江苏省送变电有限公司,江苏南京210028

出　　处：《电力勘测设计》2024年第10期80-86,共7页Electric Power Survey & Design

摘　　要：针对特高压输电线路钢管塔局部杆件微风振动的现象,制定I型扰流板、II型扰流板、单连杆和三连杆4种减振措施,并通过现场监测数据分析各减振措施的减振效果。结果表明:扰流板的减振效果与其结构形式密切相关,I型扰流板对钢管杆件微风振动的抑制效果较好,而II型扰流板在某些风速下会使杆件的振动更剧烈;单连杆和三连杆都能有效抑制钢管杆件的微风振动,且三连杆的减振效果优于单连杆。将三连杆减振措施应用于工程现场后,取得良好效果。Members in steel tube tower of UHV transmission line were usually subjected to the damage caused by aeolian vibration.In this study,to suppress the vibration,4 measures,namely,spoilers I and II,one and three-linked rods, were designed, and applied to the members in the steel tube tower. Their suppression effect was compared based on the data obtained from the on-site experiment.Results showed that suppression effect of spoilers depended on structural stype. Spoiler I can well suppress the aeolian vibration, while spoiler II had little effect, and even intensified the vibration at certain wind speed.Both one-and three-linked rods can suppress the aeolian vibration,and the latter one performed better. With the three-linked rods applied to the project site, good supression effect was achieved.

关 键 词：钢管塔 微风振动 扰流板 连杆 

分 类 号：TM75[电气工程—电力系统及自动化]