Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

The use of fibre reinforced polymers (FRP) for increasing the strength of RC structures became a usual method. FRP presents easy application and demands low space and provide significant strength increase. Usually, the decision for FRP use is made in terms of applied loads and deflections. However,...

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Autores principales:	Rafael Cunha, Kevin Oliveira, Antônio Brito, Camila Vieira, David Amorim
Formato:	article
Lenguaje:	EN
Publicado:	Gruppo Italiano Frattura 2021
Materias:	Glass fibre reinforced polymer Repair Reinforced concrete beams Damage Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
Acceso en línea:	https://doaj.org/article/337295fe3a5244789293fdfddd64c761
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spelling	oai:doaj.org-article:337295fe3a5244789293fdfddd64c7612021-11-26T10:56:32ZEvaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable1971-8993https://doaj.org/article/337295fe3a5244789293fdfddd64c7612021-06-01T00:00:00Zhttps://www.fracturae.com/index.php/fis/article/view/3059https://doaj.org/toc/1971-8993 The use of fibre reinforced polymers (FRP) for increasing the strength of RC structures became a usual method. FRP presents easy application and demands low space and provide significant strength increase. Usually, the decision for FRP use is made in terms of applied loads and deflections. However, such quantities can vary significantly depending on the characteristics of the structural element e.g. span, effective depth and concrete resistance. Therefore, this paper aims to present an alternative control variable to analyse the behaviour of RC beams repaired with glass fibre reinforced polymer (GFRP), called damage. Such damage variable accounts for concrete cracking and it was experimentally measured before and after the application of GFRP. Note that the application of GFRP increased the ultimate load for all repaired beams. The damage values of such beams also increased when collapse was reached. Furthermore, it was observed that the collapse mechanism shifted to shear and did not occurred the failure of the GFRP. Rafael CunhaKevin OliveiraAntônio BritoCamila VieiraDavid AmorimGruppo Italiano FratturaarticleGlass fibre reinforced polymerRepairReinforced concrete beamsDamageMechanical engineering and machineryTJ1-1570Structural engineering (General)TA630-695ENFrattura ed Integrità Strutturale, Vol 15, Iss 57 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glass fibre reinforced polymer Repair Reinforced concrete beams Damage Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
spellingShingle	Glass fibre reinforced polymer Repair Reinforced concrete beams Damage Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695 Rafael Cunha Kevin Oliveira Antônio Brito Camila Vieira David Amorim Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
description	The use of fibre reinforced polymers (FRP) for increasing the strength of RC structures became a usual method. FRP presents easy application and demands low space and provide significant strength increase. Usually, the decision for FRP use is made in terms of applied loads and deflections. However, such quantities can vary significantly depending on the characteristics of the structural element e.g. span, effective depth and concrete resistance. Therefore, this paper aims to present an alternative control variable to analyse the behaviour of RC beams repaired with glass fibre reinforced polymer (GFRP), called damage. Such damage variable accounts for concrete cracking and it was experimentally measured before and after the application of GFRP. Note that the application of GFRP increased the ultimate load for all repaired beams. The damage values of such beams also increased when collapse was reached. Furthermore, it was observed that the collapse mechanism shifted to shear and did not occurred the failure of the GFRP.
format	article
author	Rafael Cunha Kevin Oliveira Antônio Brito Camila Vieira David Amorim
author_facet	Rafael Cunha Kevin Oliveira Antônio Brito Camila Vieira David Amorim
author_sort	Rafael Cunha
title	Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
title_short	Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
title_full	Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
title_fullStr	Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
title_full_unstemmed	Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable
title_sort	evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (gfrp) using a damage variable
publisher	Gruppo Italiano Frattura
publishDate	2021
url	https://doaj.org/article/337295fe3a5244789293fdfddd64c761
work_keys_str_mv	AT rafaelcunha evaluationofthebehaviourofreinforcedconcretebeamsrepairedwithglassfibrereinforcedpolymergfrpusingadamagevariable AT kevinoliveira evaluationofthebehaviourofreinforcedconcretebeamsrepairedwithglassfibrereinforcedpolymergfrpusingadamagevariable AT antoniobrito evaluationofthebehaviourofreinforcedconcretebeamsrepairedwithglassfibrereinforcedpolymergfrpusingadamagevariable AT camilavieira evaluationofthebehaviourofreinforcedconcretebeamsrepairedwithglassfibrereinforcedpolymergfrpusingadamagevariable AT davidamorim evaluationofthebehaviourofreinforcedconcretebeamsrepairedwithglassfibrereinforcedpolymergfrpusingadamagevariable
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Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

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