Analysis and design recommendations of FRP-strengthened prestressed concrete beams

James Giancaspro, Perumalsamy Balaguru, Christos G. Papakonstantinou

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

Abstract

There are a limited number of experimental results available on the retrofit of prestressed concrete structural elements. In addition, there is a lack of analytical models dealing with the flexural performance of such elements. This study addresses the latter problem by presenting a methodology for analysis and design of prestressed concrete flexural elements strengthened with externally bonded, fiber reinforced composites. The method provides systematic suggestions on the analysis and design of strengthened prestressed concrete beams with both bonded and unbonded tendons. The method can be used to determine the flexural capacity and to compute stresses and strains in concrete, tendons, and externally bonded fiber reinforcement. Compared to existing experimental data on carbon strengthened beams, the model provides very good prediction of the flexural performance of strengthened prestressed beams. The equations are also applicable to other fiber types including glass, steel, and aramid.

Original languageEnglish (US)
Title of host publicationAntoine E. Naaman Symposium - Four Decades of Progress in Prestressed Concrete, Fiber Reinforced Concrete, and Thin Laminate Composites
Pages87-107
Number of pages21
Edition272 SP
StatePublished - Dec 1 2010
Externally publishedYes
EventACI Spring 2008 Convention - Los Angeles, CA, United States
Duration: Mar 30 2008Apr 3 2008

Publication series

NameAmerican Concrete Institute, ACI Special Publication
Number272 SP
ISSN (Print)0193-2527

Other

OtherACI Spring 2008 Convention
CountryUnited States
CityLos Angeles, CA
Period3/30/084/3/08

Keywords

  • Analysis
  • Composites
  • Design
  • Prestressed concrete
  • Strengthening

ASJC Scopus subject areas

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

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  • Cite this

    Giancaspro, J., Balaguru, P., & Papakonstantinou, C. G. (2010). Analysis and design recommendations of FRP-strengthened prestressed concrete beams. In Antoine E. Naaman Symposium - Four Decades of Progress in Prestressed Concrete, Fiber Reinforced Concrete, and Thin Laminate Composites (272 SP ed., pp. 87-107). (American Concrete Institute, ACI Special Publication; No. 272 SP).