Shear behavior of CFRP- reinforced concrete beams using FEM

Abstract: In the current study, the finite element method using the ABAQUS program is employed to investigate the shear behavior of reinforced concrete (RC) beams strengthened by carbon fiber reinforced polymer CFRP. Load-deflection curves, modes of failure and the pattern of the cracks are studied....

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Autores principales:	Sakban,A. K., Mashrei,A
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción 2021
Materias:	FEM CFRP Behavior Shear Beam
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200117
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spelling	oai:scielo:S0718-507320210002001172021-10-05Shear behavior of CFRP- reinforced concrete beams using FEMSakban,A. K.Mashrei,A FEM CFRP Behavior Shear Beam Abstract: In the current study, the finite element method using the ABAQUS program is employed to investigate the shear behavior of reinforced concrete (RC) beams strengthened by carbon fiber reinforced polymer CFRP. Load-deflection curves, modes of failure and the pattern of the cracks are studied. Also, the influence of compression strength of concrete, the configuration of CFRP (U shape and 2 side bond shape) and shear span to depth ratio (a/h ratio). The results show that the shear capacity of RC beams strengthened by CFRP increased by a maximum percentage of up to 111.7% compared to the unstrengthened beam. Also, it is found that by increasing the compressive strength of concrete from 40 MPa to 65 MPa the load-carrying capacity increases by 28% and the stiffness also increased, while the decrease of shear span to depth ratio from 1.66 to 2.33 leads to increasing the shear capacity by 23%. The maximum load of beam strengthened with U shape increased by up to11.5% when compared with the same beam strengthened with two side bond shapes of CFRP. However, the gain in the strength was reached to 22.7% for beams strengthened with CFRP laminate compare to unstrengthened beams. The strengthening of RC beams by CFRP laminates using the near surface mounted (NSM) technique is more efficient than the externally bonded reinforcement (EBR) technique for all beams in the shear behavior. The finite element models provide a good level of accuracy compared to experimental results and ACI-440.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la ConstrucciónRevista ingeniería de construcción v.36 n.2 20212021-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200117en10.4067/S0718-50732021000200117
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	FEM CFRP Behavior Shear Beam
spellingShingle	FEM CFRP Behavior Shear Beam Sakban,A. K. Mashrei,A Shear behavior of CFRP- reinforced concrete beams using FEM
description	Abstract: In the current study, the finite element method using the ABAQUS program is employed to investigate the shear behavior of reinforced concrete (RC) beams strengthened by carbon fiber reinforced polymer CFRP. Load-deflection curves, modes of failure and the pattern of the cracks are studied. Also, the influence of compression strength of concrete, the configuration of CFRP (U shape and 2 side bond shape) and shear span to depth ratio (a/h ratio). The results show that the shear capacity of RC beams strengthened by CFRP increased by a maximum percentage of up to 111.7% compared to the unstrengthened beam. Also, it is found that by increasing the compressive strength of concrete from 40 MPa to 65 MPa the load-carrying capacity increases by 28% and the stiffness also increased, while the decrease of shear span to depth ratio from 1.66 to 2.33 leads to increasing the shear capacity by 23%. The maximum load of beam strengthened with U shape increased by up to11.5% when compared with the same beam strengthened with two side bond shapes of CFRP. However, the gain in the strength was reached to 22.7% for beams strengthened with CFRP laminate compare to unstrengthened beams. The strengthening of RC beams by CFRP laminates using the near surface mounted (NSM) technique is more efficient than the externally bonded reinforcement (EBR) technique for all beams in the shear behavior. The finite element models provide a good level of accuracy compared to experimental results and ACI-440.
author	Sakban,A. K. Mashrei,A
author_facet	Sakban,A. K. Mashrei,A
author_sort	Sakban,A. K.
title	Shear behavior of CFRP- reinforced concrete beams using FEM
title_short	Shear behavior of CFRP- reinforced concrete beams using FEM
title_full	Shear behavior of CFRP- reinforced concrete beams using FEM
title_fullStr	Shear behavior of CFRP- reinforced concrete beams using FEM
title_full_unstemmed	Shear behavior of CFRP- reinforced concrete beams using FEM
title_sort	shear behavior of cfrp- reinforced concrete beams using fem
publisher	Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-50732021000200117
work_keys_str_mv	AT sakbanak shearbehaviorofcfrpreinforcedconcretebeamsusingfem AT mashreia shearbehaviorofcfrpreinforcedconcretebeamsusingfem
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Shear behavior of CFRP- reinforced concrete beams using FEM

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