IMPROVEMENT IN SEISMIC PERFORMANCE OF EXISTING CYLINDRICAL STEEL PIERS BY TAKING ADVANTAGE OF CONTACT EFFECT OF NEWLY ADDED LONGITUDINAL STIFFENERS AS REINFORCEMENT

DOI 5 References

Bibliographic Information

Other Title
  • 接触効果を利用した縦リブ補強による既設円形断面鋼製橋脚の耐震性能の向上

Abstract

  In order to seismically strengthen existing bridge piers, it is commonly required to improve only their ductility while suppressing any excessive strengthening of load bearing capacity. In the present study, we proposed and verified a new method, which is, unlike the conventional method of providing longitudinal stiffeners, the same stiffeners are provided to existing cylindrical steel piers while elaborately allowing a slight gap in between the bottom of a stiffener and bottom plate of a pier. The estimated seismic effect has been verified by an experiment and the numerical analysis. Our studies showed that only the ductility has been effectively increased by being contacted the bottom of stiffeners and the bottom plate of piers after seismic force has reached a maximum level.

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Details 詳細情報について

  • CRID
    1390001205255940096
  • NII Article ID
    130004467212
  • DOI
    10.2208/jsceja.66.239
  • ISSN
    18806023
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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