Behavior of corrodedrc beams without stirrups repaired with cfrp sheets

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In reinforced concrete structures located in hot and humid areas, steel reinforcement is generally vulnerable to deterioration due to corrosion. Corrosion of reinforcement in many cases is considered the main cause of concrete structures deterioration, which in turn requires large budgets for repair and maintenance. This paper presents the experimental results of damaged/repaired reinforced concrete beams. The experimental program consisted of testing reinforced concrete rectangular beam specimen's with/without shear reinforcement and exposed to accelerated corrosion of the longitudinal steel reinforcement on the tension side. Bonding external U-shaped CFRP sheets to restore the strength loss due to corrosion repaired corroded beams without shear reinforcement. The test results showed that corroded beams without stirrups failed in a brittle manner with drop in maximum deflection at failure of approximately 60% compared to the uncorroded beam. Corroded beams with stirrups lost some strength, but failed in ductile manner. Using externally bonded U-shaped CFRP sheets restored the ductility of corroded beams without stirrups and prevented bond failure at the steel concrete interface due to the absence of internal stirrups.

Original languageEnglish
Title of host publicationISEC 2017 - 9th International Structural Engineering and Construction Conference
Subtitle of host publicationResilient Structures and Sustainable Construction
PublisherISEC Press
ISBN (Electronic)9780996043748
Publication statusPublished - 2017
Event9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction, ISEC 2017 - Valencia, Spain
Duration: Jul 24 2017Jul 29 2017

Other

Other9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction, ISEC 2017
CountrySpain
CityValencia
Period7/24/177/29/17

Keywords

  • Composite materials
  • Corrosion
  • Rehabilitation
  • Repair
  • Strengthening
  • Transvers steel

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Al-Saidy, A., El-Gamal, S., Al-Jabri, K., & Waris, B. (2017). Behavior of corrodedrc beams without stirrups repaired with cfrp sheets. In ISEC 2017 - 9th International Structural Engineering and Construction Conference: Resilient Structures and Sustainable Construction ISEC Press.