Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars

Fiber reinforced polymers (FRP) are the safe alternatives to steel bars in reinforced concrete members in a humid environment. They have a very high durability against corrosion, especially in the extreme weather conditions. As a result of the low modulus of elasticity of these bars compared to the...

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Autores principales:	Amir Mohammad Mohtaj Khorasani, mohammad Reza Esfahani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	rc beams flexural behavior cracking gfrp reinforcing bars concrete strength bars arrangement reinforcement ratio Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/9c6809b159bd4628a7d08536732f5914
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spelling	oai:doaj.org-article:9c6809b159bd4628a7d08536732f59142021-11-08T15:53:06ZEffect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars2476-39772538-261610.22065/jsce.2018.116344.1443https://doaj.org/article/9c6809b159bd4628a7d08536732f59142020-03-01T00:00:00Zhttps://www.jsce.ir/article_66845_aa8ba43055729dea8c0f73d42dd15312.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Fiber reinforced polymers (FRP) are the safe alternatives to steel bars in reinforced concrete members in a humid environment. They have a very high durability against corrosion, especially in the extreme weather conditions. As a result of the low modulus of elasticity of these bars compared to the steel bars, the deflection and crack width are high in the beams reinforced with these bars. In this paper, the flexural behavior and cracking of concrete beams reinforced with GFRP bars are investigated. Twelve reinforced concrete beams with the cross-section of 250 × 250 mm and length of 2200 mm were manufactured and tested in a four-point bending setup. Eight beams were made with low reinforcement ratio, 4 of which were made of high-strength concrete and 4 were made of normal-strength concrete. In addition, 4 other beams were made with high reinforcement ratio made of normal-strength concrete. The parameters studied in this research are concrete strength, tensile bars arrangement and reinforcement ratio. The results show that the change in the strength of concrete as well as the change in the arrangement of tensile bars and reinforcement ratio lead to a change in the flexural behavior of the beams and also affect the cracking. Moreover, the experimental results are compared with the values predicted by ACI440.1R code.Amir Mohammad Mohtaj Khorasanimohammad Reza EsfahaniIranian Society of Structrual Engineering (ISSE)articlerc beamsflexural behaviorcrackinggfrp reinforcing barsconcrete strengthbars arrangementreinforcement ratioBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 1, Pp 88-107 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	rc beams flexural behavior cracking gfrp reinforcing bars concrete strength bars arrangement reinforcement ratio Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	rc beams flexural behavior cracking gfrp reinforcing bars concrete strength bars arrangement reinforcement ratio Bridge engineering TG1-470 Building construction TH1-9745 Amir Mohammad Mohtaj Khorasani mohammad Reza Esfahani Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
description	Fiber reinforced polymers (FRP) are the safe alternatives to steel bars in reinforced concrete members in a humid environment. They have a very high durability against corrosion, especially in the extreme weather conditions. As a result of the low modulus of elasticity of these bars compared to the steel bars, the deflection and crack width are high in the beams reinforced with these bars. In this paper, the flexural behavior and cracking of concrete beams reinforced with GFRP bars are investigated. Twelve reinforced concrete beams with the cross-section of 250 × 250 mm and length of 2200 mm were manufactured and tested in a four-point bending setup. Eight beams were made with low reinforcement ratio, 4 of which were made of high-strength concrete and 4 were made of normal-strength concrete. In addition, 4 other beams were made with high reinforcement ratio made of normal-strength concrete. The parameters studied in this research are concrete strength, tensile bars arrangement and reinforcement ratio. The results show that the change in the strength of concrete as well as the change in the arrangement of tensile bars and reinforcement ratio lead to a change in the flexural behavior of the beams and also affect the cracking. Moreover, the experimental results are compared with the values predicted by ACI440.1R code.
format	article
author	Amir Mohammad Mohtaj Khorasani mohammad Reza Esfahani
author_facet	Amir Mohammad Mohtaj Khorasani mohammad Reza Esfahani
author_sort	Amir Mohammad Mohtaj Khorasani
title	Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
title_short	Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
title_full	Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
title_fullStr	Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
title_full_unstemmed	Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars
title_sort	effect of concrete strength, arrangement/ratio of reinforcement on flexural behavior and cracking of concrete beams reinforced with gfrp bars
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/9c6809b159bd4628a7d08536732f5914
work_keys_str_mv	AT amirmohammadmohtajkhorasani effectofconcretestrengtharrangementratioofreinforcementonflexuralbehaviorandcrackingofconcretebeamsreinforcedwithgfrpbars AT mohammadrezaesfahani effectofconcretestrengtharrangementratioofreinforcementonflexuralbehaviorandcrackingofconcretebeamsreinforcedwithgfrpbars
_version_	1718441589999665152

Effect of Concrete Strength, Arrangement/Ratio of Reinforcement on Flexural Behavior and Cracking of Concrete Beams Reinforced with GFRP Bars

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