FRP confinement of high-aspect ratio concrete columns

C. S. Kolyvas, T. C. Triantafillou, A. I. Bernakos

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

Abstract

An important limitation in the majority of the globally available guidelines, with regard to concrete strengthening, is the confinement of vertical members of high-aspect ratio cross-sections by means of externally applied FRP. For that matter, the paper investigates FRP confinement of wall-like reinforced concrete columns, by examining a number of parameters, namely the effectiveness of different types of carbon FRP anchors, the role of different cross-section aspect-ratios (3 and 4), the number of externally applied FRP layers, local strengthening at the corners and the reduction of aspect-ratio by cross-section enlargement. It is concluded that properly dimensioned anchoring system, nearly doubles the confining effectiveness of FRP. Moreover, the use of additional FRP layers near the edges of the cross-section increases the confining effectiveness of the jacket by approximately 50%, and shape enlargement of the cross section with mortar is practically as effective as the use of FRP anchors.

Original languageEnglish (US)
Title of host publicationConcrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016
EditorsKosmas Sideris, Ioanna Papayianni, Michael G. Grantham
PublisherCRC Press/Balkema
Pages525-530
Number of pages6
ISBN (Print)9781138030084
StatePublished - 2016
Event6th International Conference on Concrete Repair, 2016 - Thessaloniki, Greece
Duration: Jun 20 2016Jun 23 2016

Publication series

NameConcrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016

Other

Other6th International Conference on Concrete Repair, 2016
CountryGreece
CityThessaloniki
Period6/20/166/23/16

Keywords

  • Concrete
  • Confinement
  • FRP anchors
  • Fibre-reinforced polymers
  • High-aspect ratio columns
  • Shape enlargement

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Kolyvas, C. S., Triantafillou, T. C., & Bernakos, A. I. (2016). FRP confinement of high-aspect ratio concrete columns. In K. Sideris, I. Papayianni, & M. G. Grantham (Eds.), Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016 (pp. 525-530). (Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016). CRC Press/Balkema.