Strengthening schemes for flexure and torsion using FRP laminates: A state of art review

Muhammad Imran, Nasir Shafiq, Ibrisam Akbar

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

1 Citation (Scopus)


RC beams as a structural member contain a variety of non-uniform loads. These nonuniform loads caused combined effects of flexure and torsion. There are numerous studies available, that suggests different strengthening schemes using FRP laminates, as a solution for flexure and torsion deficient beams. Most of the experimental studies suggested individual strengthening schemes for flexure or torsional deficiency RC beams. However, the combined effects were not studied due to difference in experimental setup, testing procedure and specimen detailing. Therefore, the outcome of previous studies was needed to combine together to facilitate the strengthening process as a guideline case of such deficiency. Therefore, a combined review is presented by suggesting different configuration for flexure and torsion deficient RC beams. Most of the studies suggested that the application of FRP laminates at the soffit of beam is suitable for flexural strengthening. The application of U-shape or full wrap are suitable for strengthen torsion deficient beams. Similarly, 45° wraps are more effective than 90°wraps for improving ductility of torsion deficient beams.

Original languageEnglish
Title of host publicationStructural, Environmental, Coastal and Offshore Engineering
PublisherTrans Tech Publications
Number of pages6
ISBN (Electronic)9783038265061
ISBN (Print)9783038351238
Publication statusPublished - 2014

Publication series

NameApplied Mechanics and Materials
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482


  • CFRP
  • Deficiency
  • Eccentricity
  • Flexure
  • Reinforced concrete and torsion

ASJC Scopus subject areas

  • Engineering(all)


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