• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2013, Vol. 34 ›› Issue (8): 64-68.doi: 10.3969/j.issn.1000-7229.2013.08. 012

• 输配电技术 • 上一篇    下一篇

1 000 kV特高压山区单回路输电塔风振特性研究

潘峰1,3,李显鑫1,侯中伟1,吴海洋2,胡鑫4   

  1. 1.国网北京经济技术研究院,北京市 100052; 2. 中南电力设计院,武汉市 430071; 3. 浙江省电力设计院,杭州市 310012;4.河南省电力公司电力经济技术研究院,郑州市 450000
  • 出版日期:2013-08-01
  • 作者简介:潘峰(1980),男,博士,高工,主要从事输电线路设计等方面的研究工作,E-mail: qiushif@163.com; 李显鑫(1974),男,高工,主要从事输电线路设计、研究、咨询等工作,E-mail: lixianxin@chinasperi.sgcc.com.cn; 侯中伟(1972),男,高工,主要从事输电线路设计、研究、咨询等工作,E-mail: houzhongwei@chinasperi.sgcc.com.cn; 吴海洋(1981),男,博士,高工,主要从事输电线路设计等方面的研究工作,E-mail: wuhaiyang@csepdi.com; 胡鑫(1975),男,学士,工程师,主要从事输电线路设计等方面的研究工作,E-mail:hnhuxin@163.com。

Wind Vibration Characteristics of Single-Circuit Power Transmission Tower in Mountain Area for 1 000 kV UHV Transmission Lines

PAN Feng1,3, LI Xianxin1, HOU Zhongwei1,WU Haiyang2, HU Xin4   

  1. 1.State Power Economic Research Institute, Beijing 100052, China; 2.Central Southern China Electric Power Design Institute, Wuhan 430071, China; 3.Zhejiang Electric Power Design Institute, Hangzhou 310012, China; 4.Henan Electric Power Company Economic Research Institute, Zhengzhou 45000, China
  • Online:2013-08-01

摘要:

1 000 kV特高压单回路输电塔属于风敏感结构,风与结构的相互作用十分复杂,风荷载常常是设计的主要控制荷载之一。以某1 000 kV单回路塔为研究背景,获得了结构的自振动力特性。基于随机振动理论推导了铁塔的风振系数计算公式,研究了垂直线路方向和顺线路方向的振型模态,同时分析了结构各层的风振系数分布特点,并与设计规范进行对比,得出特高压单回路输电塔风振系数计算的经验公式。通过研究,揭示了1 000 kV特高压单回路塔的风致振动特性,结果可作为特高压铁塔结构抗风设计的参考。

关键词: 1 000 kV特高压, 输电塔, 风荷载, 随机理论, 风致响应, 风振系数

Abstract:

1 000 kV UHV single-circuit power transmission tower is wind-sensitive, in which the wind load becomes one of the main control loads in the structure design due to the complex interaction between wind and structure. Taking a 1 000 kV single-circuit transmission tower as research background, the vibration characteristics of tower structure were obtained. Based on the random vibration theory, the formula of wind vibration coefficient of the tower was derived, as well as the vibration modes of the line at vertical and parallel directions were studied. Meanwhile, the distribution characteristics of wind vibration coefficients at different structure layers were also studied and compared with those in the design code. Finally, the empirical formula of wind vibration coefficient for UHV single-circuit transmission tower was obtained. The research results reveal the characteristics of wind-induced vibration of 1 000 kV UHV single-circuit transmission tower, which can be references for the tower's wind-resistance design.

Key words: 1 000 kV UHV, power transmission tower, wind load, stochastic theory, wind-induced response, wind vibration coefficient