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Reinforced Concrete Corbel Strengthened Using Carbon Fiber Reinforced Polymer (CFRP) Sheets

1
Civil Engineering Department, State University of Maringá (UEM), 87020-900 Maringá, Brazil
2
Structures Department, University of Campinas (UNICAMP), 13083-970 Campinas, Brazil
3
Faculty of Civil Engineering, Federal University of Pará (UFPA), 66075-110 Belém, Brazil
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2019, 3(1), 26; https://doi.org/10.3390/jcs3010026
Received: 20 December 2018 / Revised: 25 February 2019 / Accepted: 11 March 2019 / Published: 15 March 2019
(This article belongs to the Special Issue FRP Composites in Structural Concrete)
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Abstract

This paper presents and discusses the procedures adopted for repairing and strengthening a damaged reinforced concrete corbel of an industrial biomass boiler. The reinforced concrete corbel was subjected to concrete spalling, favoring the risk of the main tie reinforcement slip in the anchorage zone. The proposed solution involved a local repair with a polymeric mortar and subsequent strengthening using carbon fiber reinforced polymer (FRP) sheets, attending the requirements imposed by the in site conditions and the design plans. The intervention allowed the confinement of the concrete zone subjected to spalling and provided additional safety for the main tie reinforcement of the corbel. The applied technique was demonstrated to be fast, reliable, practical, and cheaper than other available solutions, such as section enlargements with concrete jacketing. View Full-Text
Keywords: reinforced concrete; corbel; strengthening and carbon fiber reinforced polymer (CFRP) reinforced concrete; corbel; strengthening and carbon fiber reinforced polymer (CFRP)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style

Souza, R.A.; Trautwein, L.M.; Ferreira, M.P. Reinforced Concrete Corbel Strengthened Using Carbon Fiber Reinforced Polymer (CFRP) Sheets. J. Compos. Sci. 2019, 3, 26.

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