Reliability of bridges under tsunami hazards: Emphasis on the 2011 Tohoku-oki earthquake

Mitsuyoshi Akiyama, Dan M. Frangopol, Megumi Arai, Shunichi Koshimura

    Research output: Contribution to journalArticle

    33 Citations (Scopus)

    Abstract

    The probabilistic estimation of tsunami impact on bridges and the evaluation of potential tsunami risk are important topics, but they are still in very early stages of development. First, this paper presents the damage of bridges during the great Tohoku-oki earthquake and giant tsunami of 11 March 2011 based on the field damage investigation. The damage conditions and the possible failure mechanisms of bridges due to tsunami are particularly discussed. Second, tsunami fragility curves are presented. Empirical tsunami fragility curves based on the utilization of damage data associated with past tsunami disasters have been developed. In this paper, the tsunami fragility curves are established based on simulations. Bridge failure probability can be estimated using the tsunami hazard and fragility curves. Finally, an illustrative example of the reliability estimation of a bridge exposed to tsunami hazard is presented.

    Original languageEnglish
    JournalEarthquake Spectra
    Volume29
    Issue numberSUPPL.1
    DOIs
    Publication statusPublished - 2013 Mar

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    Tohoku earthquake 2011
    Tsunamis
    tsunami
    hazards
    Earthquakes
    Hazards
    earthquakes
    hazard
    damage
    curves
    disasters
    evaluation
    failure mechanism
    Disasters
    disaster
    simulation

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology
    • Geophysics

    Cite this

    Reliability of bridges under tsunami hazards : Emphasis on the 2011 Tohoku-oki earthquake. / Akiyama, Mitsuyoshi; Frangopol, Dan M.; Arai, Megumi; Koshimura, Shunichi.

    In: Earthquake Spectra, Vol. 29, No. SUPPL.1, 03.2013.

    Research output: Contribution to journalArticle

    Akiyama, Mitsuyoshi ; Frangopol, Dan M. ; Arai, Megumi ; Koshimura, Shunichi. / Reliability of bridges under tsunami hazards : Emphasis on the 2011 Tohoku-oki earthquake. In: Earthquake Spectra. 2013 ; Vol. 29, No. SUPPL.1.
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