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An experimentally based analytical model for the shear capacity of FRP-strengthened reinforced concrete beams

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Mechanics of Composite Materials Aims and scope

Abstract

This paper deals with the shear strengthening of Reinforced Concrete (RC) flexural members with externally bonded Fiber-Reinforced Polymers (FRPs). The interaction between an external FRP and an internal transverse steel reinforcement is not considered in actual code recommendations, but it strongly influences the efficiency of the shear strengthening rehabilitation technique and, as a consequence, the computation of interacting contributions to the nominal shear strength of beams. This circumstance is also discussed on the basis of the results of an experimental investigation of rectangular RC beams strengthened in shear with “U-jacketed” carbon FRP sheets. Based on experimental results of the present and other investigations, a new analytical model for describing the shear capacity of RC beams strengthened according to the most common schemes (side-bonded and “U-jacketed”), taking into account the interaction between steel and FRP shear strength contributions, is proposed.

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Authors and Affiliations

  1. Department of Construction and Transportation Engineering, University of Padova, Via Marzolo 9, 35131, Padova, Italy

    C. Pellegrino & C. Modena

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  1. C. Pellegrino
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  2. C. Modena
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Additional information

Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 44, No. 3, pp. 339–356, May–June, 2008.

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Pellegrino, C., Modena, C. An experimentally based analytical model for the shear capacity of FRP-strengthened reinforced concrete beams. Mech Compos Mater 44, 231–244 (2008). https://doi.org/10.1007/s11029-008-9016-y

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  • DOI: https://doi.org/10.1007/s11029-008-9016-y

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