Life-cycle reliability of RC bridge piers under seismic and airborne chloride hazards

Mitsuyoshi Akiyama, Dan M. Frangopol, Hiroshi Matsuzaki

    Research output: Contribution to journalArticle

    100 Citations (Scopus)

    Abstract

    Over the last two decades, the probabilistic assessment of reinforced concrete (RC) structures under seismic hazard has been developed rapidly. However, little attention has been devoted to the assessment of the seismic reliability of corroded structures. For the life-cycle assessment of RC structures in a marine environment and earthquake-prone regions, the effect of corrosion due to airborne chlorides on the seismic capacity needs to be taken into consideration. Also, the effect of the type of corrosive environment on the seismic capacity of RC structures has to be quantified. In this paper, the evaluation of the displacement ductility capacity based on the buckling model of longitudinal rebars in corroded RC bridge piers is established, and a novel computational procedure to integrate the probabilistic hazard associated with airborne chlorides into life-cycle seismic reliability assessment of these piers is proposed. The seismic demand depends on the results of seismic hazard assessment, whereas the deterioration of seismic capacity depends on the hazard associated with airborne chlorides. In an illustrative example, an RC bridge pier was modeled as single degree of freedom (SDOF). The longitudinal rebars buckling of this pier was considered as the sole limit state when estimating its failure probability. The findings show that the life-cycle reliability of RC bridge piers depends on both the seismic and airborne chloride hazards, and that the cumulative-time failure probabilities of RC bridge piers located in seismic zones can be dramatically affected by the effect of airborne chlorides.

    Original languageEnglish
    Pages (from-to)1671-1687
    Number of pages17
    JournalEarthquake Engineering and Structural Dynamics
    Volume40
    Issue number15
    DOIs
    Publication statusPublished - 2011 Dec

    Fingerprint

    Bridge piers
    Concrete bridges
    pier
    reinforced concrete
    Reinforced concrete
    Life cycle
    Hazards
    life cycle
    chloride
    hazard
    concrete structure
    Concrete construction
    Piers
    buckling
    seismic hazard
    Buckling
    seismic zone
    ductility
    hazard assessment
    Deterioration

    Keywords

    • Airborne chloride
    • Hazard assessment
    • Rebar buckling
    • Reinforced concrete structures
    • Reliability
    • Seismic hazard

    ASJC Scopus subject areas

    • Earth and Planetary Sciences (miscellaneous)
    • Geotechnical Engineering and Engineering Geology

    Cite this

    Life-cycle reliability of RC bridge piers under seismic and airborne chloride hazards. / Akiyama, Mitsuyoshi; Frangopol, Dan M.; Matsuzaki, Hiroshi.

    In: Earthquake Engineering and Structural Dynamics, Vol. 40, No. 15, 12.2011, p. 1671-1687.

    Research output: Contribution to journalArticle

    @article{915a6a9cfe594ee687ab2685ae7081ba,
    title = "Life-cycle reliability of RC bridge piers under seismic and airborne chloride hazards",
    abstract = "Over the last two decades, the probabilistic assessment of reinforced concrete (RC) structures under seismic hazard has been developed rapidly. However, little attention has been devoted to the assessment of the seismic reliability of corroded structures. For the life-cycle assessment of RC structures in a marine environment and earthquake-prone regions, the effect of corrosion due to airborne chlorides on the seismic capacity needs to be taken into consideration. Also, the effect of the type of corrosive environment on the seismic capacity of RC structures has to be quantified. In this paper, the evaluation of the displacement ductility capacity based on the buckling model of longitudinal rebars in corroded RC bridge piers is established, and a novel computational procedure to integrate the probabilistic hazard associated with airborne chlorides into life-cycle seismic reliability assessment of these piers is proposed. The seismic demand depends on the results of seismic hazard assessment, whereas the deterioration of seismic capacity depends on the hazard associated with airborne chlorides. In an illustrative example, an RC bridge pier was modeled as single degree of freedom (SDOF). The longitudinal rebars buckling of this pier was considered as the sole limit state when estimating its failure probability. The findings show that the life-cycle reliability of RC bridge piers depends on both the seismic and airborne chloride hazards, and that the cumulative-time failure probabilities of RC bridge piers located in seismic zones can be dramatically affected by the effect of airborne chlorides.",
    keywords = "Airborne chloride, Hazard assessment, Rebar buckling, Reinforced concrete structures, Reliability, Seismic hazard",
    author = "Mitsuyoshi Akiyama and Frangopol, {Dan M.} and Hiroshi Matsuzaki",
    year = "2011",
    month = "12",
    doi = "10.1002/eqe.1108",
    language = "English",
    volume = "40",
    pages = "1671--1687",
    journal = "Earthquake Engineering and Structural Dynamics",
    issn = "0098-8847",
    publisher = "John Wiley and Sons Ltd",
    number = "15",

    }

    TY - JOUR

    T1 - Life-cycle reliability of RC bridge piers under seismic and airborne chloride hazards

    AU - Akiyama, Mitsuyoshi

    AU - Frangopol, Dan M.

    AU - Matsuzaki, Hiroshi

    PY - 2011/12

    Y1 - 2011/12

    N2 - Over the last two decades, the probabilistic assessment of reinforced concrete (RC) structures under seismic hazard has been developed rapidly. However, little attention has been devoted to the assessment of the seismic reliability of corroded structures. For the life-cycle assessment of RC structures in a marine environment and earthquake-prone regions, the effect of corrosion due to airborne chlorides on the seismic capacity needs to be taken into consideration. Also, the effect of the type of corrosive environment on the seismic capacity of RC structures has to be quantified. In this paper, the evaluation of the displacement ductility capacity based on the buckling model of longitudinal rebars in corroded RC bridge piers is established, and a novel computational procedure to integrate the probabilistic hazard associated with airborne chlorides into life-cycle seismic reliability assessment of these piers is proposed. The seismic demand depends on the results of seismic hazard assessment, whereas the deterioration of seismic capacity depends on the hazard associated with airborne chlorides. In an illustrative example, an RC bridge pier was modeled as single degree of freedom (SDOF). The longitudinal rebars buckling of this pier was considered as the sole limit state when estimating its failure probability. The findings show that the life-cycle reliability of RC bridge piers depends on both the seismic and airborne chloride hazards, and that the cumulative-time failure probabilities of RC bridge piers located in seismic zones can be dramatically affected by the effect of airborne chlorides.

    AB - Over the last two decades, the probabilistic assessment of reinforced concrete (RC) structures under seismic hazard has been developed rapidly. However, little attention has been devoted to the assessment of the seismic reliability of corroded structures. For the life-cycle assessment of RC structures in a marine environment and earthquake-prone regions, the effect of corrosion due to airborne chlorides on the seismic capacity needs to be taken into consideration. Also, the effect of the type of corrosive environment on the seismic capacity of RC structures has to be quantified. In this paper, the evaluation of the displacement ductility capacity based on the buckling model of longitudinal rebars in corroded RC bridge piers is established, and a novel computational procedure to integrate the probabilistic hazard associated with airborne chlorides into life-cycle seismic reliability assessment of these piers is proposed. The seismic demand depends on the results of seismic hazard assessment, whereas the deterioration of seismic capacity depends on the hazard associated with airborne chlorides. In an illustrative example, an RC bridge pier was modeled as single degree of freedom (SDOF). The longitudinal rebars buckling of this pier was considered as the sole limit state when estimating its failure probability. The findings show that the life-cycle reliability of RC bridge piers depends on both the seismic and airborne chloride hazards, and that the cumulative-time failure probabilities of RC bridge piers located in seismic zones can be dramatically affected by the effect of airborne chlorides.

    KW - Airborne chloride

    KW - Hazard assessment

    KW - Rebar buckling

    KW - Reinforced concrete structures

    KW - Reliability

    KW - Seismic hazard

    UR - http://www.scopus.com/inward/record.url?scp=81855194435&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=81855194435&partnerID=8YFLogxK

    U2 - 10.1002/eqe.1108

    DO - 10.1002/eqe.1108

    M3 - Article

    VL - 40

    SP - 1671

    EP - 1687

    JO - Earthquake Engineering and Structural Dynamics

    JF - Earthquake Engineering and Structural Dynamics

    SN - 0098-8847

    IS - 15

    ER -