RESEARCH ARTICLE


Experimental Response of RC Beams Strengthened in Shear by FRP Sheets



E. Grande, M. Imbimbo*, A. Rasulo
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Italy.


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© 2013 Grande et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Italy; Tel: +39.0776.299.3740; Fax: +39.0776.299.3392; E-mail: mimbimbo@unicas.it


Abstract

The paper discusses the results of an experimental investigation carried out on reinforced concrete (RC) beams strengthened in shear by externally bonded fiber reinforced plastic (FRP) sheets. The study is devoted to analyze the role that the transverse steel reinforcement and the beam slenderness ratio could play on the resistant mechanism of RC beams strengthened in shear by FRP composites. The results are summarized and analyzed in detail in the paper in terms of shear capacity, cracking pattern and shear resisting contribution of FRP.

Keywords: Beam slenderness, cracking, FRP-shear strengthening, RC beams, steel stirrups.