Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers

The use of fiber reinforced polymers, FRP, is one of the methods for strengthening and retrofitting concrete structures. In this research, the strengthening of reinforced self-compacting concrete beams against shear, torsion and bending has been investigated using GFRP. For reinforcing the beams aga...

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Autores principales:	Moosa Mazloom, Morteza Mehrvnd, Azim Savari Pour
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	concrete beam gfrp abaqus shear bending torsion Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/638dacd552fa448d84a9877543753726
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spelling	oai:doaj.org-article:638dacd552fa448d84a98775437537262021-11-08T15:52:56ZStrengthening of Concrete Beams Using Glass Fiber Reinforced Polymers2476-39772538-261610.22065/jsce.2018.109130.1397https://doaj.org/article/638dacd552fa448d84a98775437537262019-12-01T00:00:00Zhttps://www.jsce.ir/article_65307_e5ee2c193b6733c34f6d8e71d93dd81c.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The use of fiber reinforced polymers, FRP, is one of the methods for strengthening and retrofitting concrete structures. In this research, the strengthening of reinforced self-compacting concrete beams against shear, torsion and bending has been investigated using GFRP. For reinforcing the beams against shear, bending and torsion, the strips of GFRP were used in the forms of U-shape, straight on the bottom surface and screwed around the beams respectively. In this study, the experimental results were compared with the results of the numerical models and their accuracies were confirmed. Then reinforcement sheets were applied in one and two layers on concrete beam models. By studying the numerical results obtained from Abaqus software, it was observed that with the increase of cracks in the concrete beams, their stiffness decreased and then the stresses were tolerated by the adhesive layers and the GFRP sheets, which has led to an increase in the bearing capacity of the beams. The results of numerical finite elements modeling show that by reinforcing the concrete beams with one layer of GFRP, the load bearing capacities of the beams improved in shear and torsion about 32% and 47% respectively. Moreover, if two layers of reinforcement sheets were used, the shear and torsion capacities of the beams increased about 45% and 61% respectively. The bending capacities of the concrete beams strengthened with one and two layers of GFRP increased up to 32% and 48% respectively.Moosa MazloomMorteza MehrvndAzim Savari PourIranian Society of Structrual Engineering (ISSE)articleconcrete beamgfrpabaqusshearbendingtorsionBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss شماره ویژه 4, Pp 27-42 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	concrete beam gfrp abaqus shear bending torsion Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	concrete beam gfrp abaqus shear bending torsion Bridge engineering TG1-470 Building construction TH1-9745 Moosa Mazloom Morteza Mehrvnd Azim Savari Pour Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
description	The use of fiber reinforced polymers, FRP, is one of the methods for strengthening and retrofitting concrete structures. In this research, the strengthening of reinforced self-compacting concrete beams against shear, torsion and bending has been investigated using GFRP. For reinforcing the beams against shear, bending and torsion, the strips of GFRP were used in the forms of U-shape, straight on the bottom surface and screwed around the beams respectively. In this study, the experimental results were compared with the results of the numerical models and their accuracies were confirmed. Then reinforcement sheets were applied in one and two layers on concrete beam models. By studying the numerical results obtained from Abaqus software, it was observed that with the increase of cracks in the concrete beams, their stiffness decreased and then the stresses were tolerated by the adhesive layers and the GFRP sheets, which has led to an increase in the bearing capacity of the beams. The results of numerical finite elements modeling show that by reinforcing the concrete beams with one layer of GFRP, the load bearing capacities of the beams improved in shear and torsion about 32% and 47% respectively. Moreover, if two layers of reinforcement sheets were used, the shear and torsion capacities of the beams increased about 45% and 61% respectively. The bending capacities of the concrete beams strengthened with one and two layers of GFRP increased up to 32% and 48% respectively.
format	article
author	Moosa Mazloom Morteza Mehrvnd Azim Savari Pour
author_facet	Moosa Mazloom Morteza Mehrvnd Azim Savari Pour
author_sort	Moosa Mazloom
title	Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
title_short	Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
title_full	Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
title_fullStr	Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
title_full_unstemmed	Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers
title_sort	strengthening of concrete beams using glass fiber reinforced polymers
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/638dacd552fa448d84a9877543753726
work_keys_str_mv	AT moosamazloom strengtheningofconcretebeamsusingglassfiberreinforcedpolymers AT mortezamehrvnd strengtheningofconcretebeamsusingglassfiberreinforcedpolymers AT azimsavaripour strengtheningofconcretebeamsusingglassfiberreinforcedpolymers
_version_	1718441668164714496

Strengthening of Concrete Beams Using Glass Fiber Reinforced Polymers

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