THE EFFECTS OF THE REYNOLDS NUMBER IN AERODYNAMIC CABLE-VIBRATION OF CABLE-STAYED BRIDGE

DOI
  • Matsumoto Masaru
    Kyoto University Faculty of Engineering Department of Civil and Earth Resources Engineering
  • Yagi Tomomi
    Kyoto University Faculty of Engineering Department of Civil and Earth Resources Engineering
  • Shima Takanori
    Kyoto University Faculty of Engineering Department of Civil and Earth Resources Engineering
  • Adachi Youichi
    NISHIMATSU CONSTRUCTION CO., LTD.
  • Liu Qingkuan
    Kyoto University Faculty of Engineering Department of Civil and Earth Resources Engineering
  • Hatsuda Hideaki
    Kyoto University Faculty of Engineering Department of Civil and Earth Resources Engineering

Bibliographic Information

Other Title
  • 斜張橋ケーブルの空力振動におけるレイノルズ数効果に関する研究

Abstract

This study aims to clarify the generation mechanisms of dry state galloping instability of inclined stay-cables. Recently, a violent cable vibration under strong wind was observed in a cable-stayed bridge. The factors of that vibration might be the effect of the axial flow formed in the inclined cable wake, and also the critical Reynolds number range effect, in which the drag coefficient decrease extremely. In this study, the axial flow effect and the critical Reynolds number range effect are considered as the same effect in the point of reduction of Karman vortex shedding. Then, wind tunnel tests were carried out in the critical Reynolds number range, using the cable model with artificial roughness, in order to clarify the role of Karman vortex on cable aerodynamics.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680569744768
  • NII Article ID
    130004644371
  • DOI
    10.14887/kazekosymp.19.0.507.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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