Seismic behavior of reinforced concrete columns with corroded deformed reinforcing bars

Caglar Goksu, Alper Ilki

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

Existing seismic design and assessment documents do not contain detailed specific guidance on seismic performance assessment of existing reinforced concrete (RC) structures, which have suffered from corrosion. This may cause unsafe consideration of reinforcement corrosion and, consequently, misleading seismic evaluation of such structures. In this study, six columns were subjected to different levels of accelerated corrosion process (causing different levels of damage, from slight to severe) and then were tested under constant axial and reversed cyclic lateral loading. The original aspect of the study is the clear demonstration of the adverse effect of corrosion on drift capacity of the columns. Furthermore, based on the test results, a method is proposed for calculating the deformation capacity of RC columns as a function of corrosion level for reliable seismic safety evaluation.

Original languageEnglish
Pages (from-to)1053-1064
Number of pages12
JournalACI Structural Journal
Volume113
Issue number5
DOIs
Publication statusPublished - 1 Sept 2016

Bibliographical note

Publisher Copyright:
Copyright © 2016, American Concrete Institute. All rights reserved.

Keywords

  • Assessment
  • Column
  • Corrosion
  • Cyclic
  • Deformed bars
  • Ductility
  • Reinforced concrete
  • Seismic

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