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 Jul

Keywords

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

ASJC Scopus subject areas

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

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