Strengthening of Existing Concrete Structures: Concepts and Structural Behavior

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review


In this chapter, the author presents the basic principles and behavioral aspects of reinforced concrete (RC) strengthening with textile-reinforced mortar (TRM); the author also reviews a number of studies that have provided fundamental knowledge on the use of TRM as a strengthening and seismic retrofitting material of RC structures. In most cases, the effectiveness of TRM systems is quantified through comparison with equivalent fiber-reinforced polymer systems. The chapter covers: flexural strengthening of RC beams and two-way slabs; shear strengthening of RC beams with rectangular or T-sections using closed or three-sided jackets, respectively; confinement of axially loaded concrete subjected to concentric compression; seismic retrofitting of columns by improving plastic hinge behavior and seismic retrofitting of masonry infilled reinforced concrete frames. The author demonstrates that, in all cases, TRM jacketing offers a substantial increase in mechanical performance, which is quantified through strength and/or ductility calculations.

Original languageEnglish (US)
Title of host publicationTextile Fibre Composites in Civil Engineering
PublisherElsevier Inc.
Number of pages20
ISBN (Electronic)9781782424697
ISBN (Print)9781782424468
StatePublished - 2016


  • Confinement
  • Flexural strengthening
  • Masonry infills
  • Reinforced concrete
  • Shear strengthening
  • Textile-reinforced mortar

ASJC Scopus subject areas

  • General Engineering


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