Performance of FRCM strengthened RC beams subject to fatigue

Vanessa Pino, Houman Akbari Hadad, Francisco De Caso, Antonio Nanni, Usama Ali Ebead, Ahmed El Refai

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

Fabric reinforced cementitious matrix (FRCM) is a relatively new material system recently developed for the repair, retrofit, and rehabilitation of reinforced concrete (RC) and masonry structures. Concrete structures such as bridges experience high traffic volumes and varying vehicle axle weights causing repeated cyclic loading throughout their lifetime. Cyclic loading may cause damage to the structure, a phenomenon known as fatigue. Due to the novelty of FRCM technology, there is a lack of research regarding the long-term performance of FRCM systems for RC strengthening. This study aims to investigate experimentally the parameters that most influence the flexural fatigue performance of Polyparaphenylene benzobisoxazole (PBO) FRCM strengthened RC beams. For members subject to cyclic loading, a stress ratio vs. the number of cycles (S-N) curve is developed with the objective of defining the endurance limit of the strengthened beams. Failure mode and fatigue life of the beams during cyclic loading are investigated and discussed.

Original languageEnglish (US)
JournalSustainable Construction Materials and Technologies
Volume2016-August
StatePublished - Jan 1 2016
Event4th International Conference on Sustainable Construction Materials and Technologies, SCMT 2016 - Las Vegas, United States
Duration: Aug 7 2016Aug 11 2016

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Materials Science(all)

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    Pino, V., Hadad, H. A., De Caso, F., Nanni, A., Ebead, U. A., & El Refai, A. (2016). Performance of FRCM strengthened RC beams subject to fatigue. Sustainable Construction Materials and Technologies, 2016-August.