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Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets

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  • Herish A. Hussein

    (Old Dominion University, USA)

  • Zia Razzaq

    (Old Dominion University, USA)

Abstract

The effect of Carbon Fiber Reinforced Polymer (CFRP) retrofitting and concrete type on the flexural strength of prestressed concrete I-section girders used in bridges and beams in buildings is investigated. Non-linear moment-curvature relationships are predicted using an iterative algorithm for both non-retrofitted and CFRP-retrofitted prestressed concrete girder and beam cross-sections with various concrete types. Two different CFRP-retrofitting schemes are analyzed for comparing their effectiveness. It is found that although non-retrofitted beam section exhibits greater ductility, the use of CFRP retrofitting in both tension and compression regions simultaneously results in a significant increase in flexural strength. It is also found that the higher the ultimate concrete strength, the higher is the influence of CFRP-retrofitting on increasing flexural strength.

Suggested Citation

  • Herish A. Hussein & Zia Razzaq, 2021. "Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets," European Journal of Engineering and Technology Research, European Open Science, vol. 6(1), pages 55-57, January.
    • Handle: RePEc:epw:ejeng0:v:6:y:2021:i:1:id:62323
    DOI: 10.24018/ejeng.2021.6.1.2323
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