Flexural fatigue behavior of reinforced concrete beams strengthened with FRP fabric and precured laminate systems

Mahmut Ekenel, Andrea Rizzo, John J. Myers, Antonio Nanni

Research output: Contribution to journalArticle

61 Scopus citations

Abstract

Rehabilitation of existing structures with carbon fiber reinforced polymers (CFRP) has been growing in popularity because they offer resistance to corrosion and a high stiffness-to-weight ratio. This paper presents the flexural strengthening of seven reinforced concrete (RC) beams with two FRP systems. Two beams were maintained as unstrengthened control samples. Three of the RC beams were strengthened with CFRP fabrics, whereas the remaining two were strengthened using FRP precured laminates. Glass fiber anchor spikes were applied in one of the CFRP fabric strengthened beams. One of the FRP precured laminate strengthened beams was bonded with epoxy adhesive and the other one was attached by using mechanical fasteners. Five of the beams were tested under fatigue loading for two million cycles. All of the beams survived fatigue testing. The results showed that use of anchor spikes in fabric strengthening increase ultimate strength, and mechanical fasteners can be an alternative to epoxy bonded precured laminate systems.

Original languageEnglish
Pages (from-to)433-442
Number of pages10
JournalJournal of Composites for Construction
Volume10
Issue number5
DOIs
StatePublished - Sep 25 2006
Externally publishedYes

    Fingerprint

Keywords

  • Concrete beams
  • Concrete, reinforced
  • Fatigue
  • Laminates
  • Rehabilitation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites
  • Mechanics of Materials
  • Computational Mechanics

Cite this