Dry-state Galloping of Stay Cable with Various Kinds of Surface Configuration

DOI
  • SHINJO Kohei
    Kyoto University, Faculty of Engineering, Undergraduate school of Global Engineering
  • YAGI Tomomi
    Kyoto University, Department of Civil and Earth Resouces Engineering
  • NARITA Shuhei
    Kyoto University, Graduate school of Global Engineering
  • OKAMOTO Kengo
    Kyoto University, Graduate school of Global Engineering
  • SHIRATO Hiromichi
    Kyoto University, Department of Civil and Earth Resouces Engineering

Bibliographic Information

Other Title
  • 表面形状を考慮した斜張橋ケーブルのドライステート・ギャロッピングに関する研究

Abstract

Recently, cable-stayed bridges get larger and longer. As a result of this, aerodynamic instability of stay-cables becomes obvious. For instance, dry-state galloping, rain induced vibration, flutter and so on. It is pointed out that dry-state galloping in stay-cables is caused by the suppression of Karman vortex. But the mechanism of it is not clarified yet. For that reason we must examine it in detail. It is known that end conditions of the inclined cable model have great influence on the results of the experimentation in wind tunnel. Therefore, in this study, we adopt the cable model which can measure the aerodynamic forces partially in order not to be influenced by the end conditions. We consider the occurrence of dry-state galloping in stay-cables by using the cable models which have various kinds of surface configuration in order to suppression of Karman vortex.

Journal

Details 詳細情報について

  • CRID
    1390282680601410176
  • NII Article ID
    130004607037
  • DOI
    10.14887/jaweam.2011.0.141.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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