Wind tunnel investigation on model of long span transmission line system

Hong Zhou Deng, Songye Zhu, Xiao Ming Chen, Zhao Min Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

This paper introduces a wind tunnel experiment of long span transmission line system firstly conducted in China. The experiment is based on the engineering background of 500 kV long span transmission line system under construction in Jiangyin, China, in which there are the tallest transmission towers of 346.5 m high in the world. Dynamic behavior and wind-induced vibration response of long span transmission line system are investigated through aeroelastic wind tunnel tests. A method of separating shape, mass and rigidity is applied to the design of the experiment model which includes two towers and three spans of lines. The natural frequency and damping ratio ξ of the experiment model of transmission towers with or without lines are obtained during the process of free vibration, and the response of them caused by uniform wind or fluctuating wind in the wind tunnel is tested. With the further analysis of the acquired results, some characteristics and regularity of dynamic behaviors and wind - induced response of long span transmission line system are revealed, and the conclusion of this paper can be used for reference to practical engineering design of resistance to gales.
Original languageEnglish
Pages (from-to)132-137
Number of pages6
JournalTongji Daxue Xuebao/Journal of Tongji University
Volume31
Issue number2
Publication statusPublished - 1 Feb 2003
Externally publishedYes

Keywords

  • Dynamic characteristics
  • Transmission line system
  • Wind tunnel experiment
  • Wind-induced response

ASJC Scopus subject areas

  • Engineering(all)

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