Stability of Bridge Girder under Tsunami

DOI 8 Citations

Bibliographic Information

Other Title
  • 津波による橋梁の安定性に関する検討

Abstract

This study is an investigation of the mechanism of the washout of bridge girders by tsunamis, performed by conducting 1/10 scale model experiments and numerical calculation for the case of the Numata Overpass. First, the flow experiment conducted. It confirmed that the flow velocity below the bridge girder is higher than the flow velocity above the bridge girder, applying downward force on the bridge girder. Therefore, the result was that the bridge girder was stabilized by increasing resistance to the flow. Next, the solitary wave experiment confirmed that a lift force caused by fluctuation of the water surface washed out the bridge girder. Finally, CADMAS-SURF 3D replicated the experiments numerically and confirmed the validity of the calculations.

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Details 詳細情報について

  • CRID
    1390001205319202816
  • NII Article ID
    130004551220
  • DOI
    10.2208/kaigan.69.i_911
  • ISSN
    18838944
    18842399
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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