Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement

Based on the characterization of the bond between Fiber-Reinforced Polymer (FRP) bars and concrete, the structural behavior of cracked Glass-FRP (GFRP)-Reinforced Concrete (RC) tensile elements is studied in this paper. Simulations in which different bond-slip laws between both materials (FRP reinfo...

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Main Authors: Marta Baena, Cristina Barris, Ricardo Perera, Lluís Torres
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/3/799
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author Marta Baena
Cristina Barris
Ricardo Perera
Lluís Torres
author_facet Marta Baena
Cristina Barris
Ricardo Perera
Lluís Torres
author_sort Marta Baena
collection DOAJ
description Based on the characterization of the bond between Fiber-Reinforced Polymer (FRP) bars and concrete, the structural behavior of cracked Glass-FRP (GFRP)-Reinforced Concrete (RC) tensile elements is studied in this paper. Simulations in which different bond-slip laws between both materials (FRP reinforcement and concrete) were used to analyze the effect of GFRP bar bond performance on the load transfer process and how it affects the load-mean strain curve, the distribution of reinforcement strain, the distribution of slip between reinforcement and concrete, and the tension stiffening effect. Additionally, a parametric study on the effect of materials (concrete grade, modulus of elasticity of the reinforcing bar, surface configuration, and reinforcement ratio) on the load-mean strain curve and the tension stiffening effect was also performed. Results from a previous experimental program, in combination with additional results obtained from Finite Element Analysis (FEA), were used to demonstrate the accuracy of the model to correctly predict the global (load-mean strain curve) and local (distribution of strains between cracks) structural behavior of the GFRP RC tensile elements.
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spelling doaj.art-3aa3a5ecb7834612b2e97b357fb494c12023-11-23T16:57:21ZengMDPI AGMaterials1996-19442022-01-0115379910.3390/ma15030799Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP ReinforcementMarta Baena0Cristina Barris1Ricardo Perera2Lluís Torres3Advanced Materials and Analysis for Structural Design (AMADE), Polytechnic School, University of Girona, 17003 Girona, SpainAdvanced Materials and Analysis for Structural Design (AMADE), Polytechnic School, University of Girona, 17003 Girona, SpainDepartment of Mechanical Engineering, Technical University of Madrid, 28006 Madrid, SpainAdvanced Materials and Analysis for Structural Design (AMADE), Polytechnic School, University of Girona, 17003 Girona, SpainBased on the characterization of the bond between Fiber-Reinforced Polymer (FRP) bars and concrete, the structural behavior of cracked Glass-FRP (GFRP)-Reinforced Concrete (RC) tensile elements is studied in this paper. Simulations in which different bond-slip laws between both materials (FRP reinforcement and concrete) were used to analyze the effect of GFRP bar bond performance on the load transfer process and how it affects the load-mean strain curve, the distribution of reinforcement strain, the distribution of slip between reinforcement and concrete, and the tension stiffening effect. Additionally, a parametric study on the effect of materials (concrete grade, modulus of elasticity of the reinforcing bar, surface configuration, and reinforcement ratio) on the load-mean strain curve and the tension stiffening effect was also performed. Results from a previous experimental program, in combination with additional results obtained from Finite Element Analysis (FEA), were used to demonstrate the accuracy of the model to correctly predict the global (load-mean strain curve) and local (distribution of strains between cracks) structural behavior of the GFRP RC tensile elements.https://www.mdpi.com/1996-1944/15/3/799materials’ characterizationbond-sliptension stiffeningFRP compositesconcretenumerical model
spellingShingle Marta Baena
Cristina Barris
Ricardo Perera
Lluís Torres
Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
Materials
materials’ characterization
bond-slip
tension stiffening
FRP composites
concrete
numerical model
title Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
title_full Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
title_fullStr Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
title_full_unstemmed Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
title_short Influence of Bond Characterization on Load-Mean Strain and Tension Stiffening Behavior of Concrete Elements Reinforced with Embedded FRP Reinforcement
title_sort influence of bond characterization on load mean strain and tension stiffening behavior of concrete elements reinforced with embedded frp reinforcement
topic materials’ characterization
bond-slip
tension stiffening
FRP composites
concrete
numerical model
url https://www.mdpi.com/1996-1944/15/3/799
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AT ricardoperera influenceofbondcharacterizationonloadmeanstrainandtensionstiffeningbehaviorofconcreteelementsreinforcedwithembeddedfrpreinforcement
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