FRCM shear strengthening for concrete beams

Adel Younis, Usama Ebead, Kshitij C. Shrestha

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

5 Citations (Scopus)

Abstract

This paper presents the results of an experimental study carried out to examine the efficacy of Fabric-Reinforced Cementitious Matrix (FRCM) in strengthening RC beams susceptible to shear failure. In this paper, seven shear-critical RC beams, of 2,500 mm in length, 150 mm in width, and 330 mm in depth, were tested under three-point loading until failure. Two main test variables were considered, which are: A) Strengthening material: carbon, polyparaphenylene benzobisoxazole (PBO), or glass FRCM, and b) Strengthening application pattern: A single full-length FRCM plate or a set of intermittent and spaced FRCM strips were applied along the critical shear zone. The test results confirmed the efficacy of FRCM strengthening in improving the load capacity of shear-critical RC beams. The FRCM-strengthening contributed to increases in the load capacity ranged between 31% and 100% compared to the reference specimen. The full-length strengthened specimens generally showed a better strength enhancement compared to the intermittent counterparts when using the same FRCM material. Such intuitive observation assures the importance of the amount of strengthening material applied in the critical shear zone. Besides, specimens utilizing carbon fibers in its FRCM strengthening material showed the highest strength enhancement among the three systems.

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 - Jan 1 2017
Externally publishedYes
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
Country/TerritorySpain
CityValencia
Period7/24/177/29/17

Keywords

  • Experimentation
  • Load-carrying capacity
  • Rehabilitation
  • Repair
  • Shear strength
  • Strengthening scheme.
  • Structures

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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