Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets
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Jan 10, 2021
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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.
Keywords: Flexural Strength, CFRP, Retrofitting
References
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T. Y. Lin and N. H. Burns, "Design of prestressed concrete structures," 1981.
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How to Cite
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Hussein, H.A. and Razzaq, Z. 2021. Strengthening Prestressed Concrete Bridge Girders and Building Beams with Carbon Fiber Reinforced Polymer Sheets. European Journal of Engineering and Technology Research. 6, 1 (Jan. 2021), 55-57. DOI:https://doi.org/10.24018/ejers.2021.6.1.2323.
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