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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Deflection of Reinforced Concrete Beams Strengthened with Fiber-Reinforced Polymer (FRP) Plates
Author(s): Mahmoud T. El-Mihilmy and Joseph W. Tedesco
Publication: Structural Journal
Appears on pages(s): 679-688
Keywords: beam; deflection; polymer; reinforced concrete; repair; strength
Abstract:This paper investigates the deflection of reinforced concrete beams strengthened with fiber-reinforced polymer (FRP) plates. The calculated deflections of reinforced concrete beams strengthened with FRP using Branson’s equation, adopted by ACI Code, were found to be underestimated. Therefore, a method for calculating the deflections of FRP-strengthened reinforced concrete beams is proposed. In addition, alternative expressions for calculating the effective moment of inertia for FRP-strengthened beams at the cracking and post cracking stages are developed. The deflections calculated using the proposed expressions were found to correlate well with the measured deflections in laboratory beam tests. A numerical example illustrating use of the proposed procedure is also presented.
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