Long-term seismic performance of RC structures in an aggressive environment: Emphasis on bridge piers

Mitsuyoshi Akiyama, Dan M. Frangopol

    Research output: Contribution to journalArticle

    37 Citations (Scopus)

    Abstract

    Even though accurate structural models have been developed for the performance of corroded structures subjected to monotonic flexure and/or shear, studies on seismic performance that include corrosion damage are scarce. For the lifetime assessment of structures in aggressive environments and earthquake-prone regions, the effects of corrosion on seismic performance need to be taken into consideration. Whereas the seismic demand depends on the results of seismic hazard assessment, the deterioration of seismic capacity depends on the environmental hazard assessment. The analysis of the life-cycle reliability of corroded reinforced concrete (RC) structures under earthquake excitations is the topic of this paper. It includes (a) estimation of the seismic capacity of corroded RC components; (b) seismic and airborne chloride hazard assessment and (c) life-cycle seismic reliability of bridges with corrosion damage. In particular, this paper introduces the visualisation of corrosion process in RC members using X-ray for modelling the spatial variability of rebar corrosion. A novel computational procedure to integrate the probabilistic hazard associated with airborne chlorides into life-cycle seismic reliability of bridge piers is presented.

    Original languageEnglish
    Pages (from-to)865-879
    Number of pages15
    JournalStructure and Infrastructure Engineering
    Volume10
    Issue number7
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    Bridge piers
    concrete structure
    pier
    reinforced concrete
    Concrete construction
    Reinforced concrete
    corrosion
    Corrosion
    Hazards
    hazard assessment
    Life cycle
    life cycle
    Earthquakes
    chloride
    earthquake
    damage
    environmental hazard
    flexure
    seismic hazard
    visualization

    Keywords

    • bridges
    • corrosion
    • hazard assessment
    • reinforced concrete structure
    • seismic reliability
    • X-ray

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Geotechnical Engineering and Engineering Geology
    • Safety, Risk, Reliability and Quality
    • Building and Construction
    • Mechanical Engineering
    • Ocean Engineering

    Cite this

    Long-term seismic performance of RC structures in an aggressive environment : Emphasis on bridge piers. / Akiyama, Mitsuyoshi; Frangopol, Dan M.

    In: Structure and Infrastructure Engineering, Vol. 10, No. 7, 2014, p. 865-879.

    Research output: Contribution to journalArticle

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