Interface slip model for reinforced concrete columns strengthened with concrete jacketing

Abstract Retrofit and strengthening of columns can be an effective solution to improve the capacity of reinforced concrete (RC) structures when the structural details and strength are insufficient to resist extreme loads. When concrete jacketing is used by enlarging the existing RC column cross sect...

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Autores principales:	Caglar,Naci, Sichko,Alexander, Sezen,Halil, Bicici,Erkan, Demir,Aydin, Farah,A. Farhan
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2020
Materias:	Concrete Structures Column Retrofit Finite Element Method Bond Slip
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200180
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spelling	oai:scielo:S0718-915X20200002001802020-10-04Interface slip model for reinforced concrete columns strengthened with concrete jacketingCaglar,NaciSichko,AlexanderSezen,HalilBicici,ErkanDemir,AydinFarah,A. Farhan Concrete Structures Column Retrofit Finite Element Method Bond Slip Abstract Retrofit and strengthening of columns can be an effective solution to improve the capacity of reinforced concrete (RC) structures when the structural details and strength are insufficient to resist extreme loads. When concrete jacketing is used by enlarging the existing RC column cross section, the main concern is the performance loss between new and old concrete due to potential interface slip. There are three major options to improve slip resistance at the interface including surface roughening, dowels, or both. In this study, these methods are evaluated and parameters are proposed to model the load transfer along the interface between the existing and new concrete. The response of reinforced concrete jacketed columns is simulated using the proposed numerical models. The effectiveness and need for surface roughening, dowels, or their combination are investigated. A slip coefficient is proposed to model the friction between new and old concrete materials based on comparison of the experimental data and numerical simulations.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.19 n.2 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200180en10.7764/rdlc.19.2.180
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Concrete Structures Column Retrofit Finite Element Method Bond Slip
spellingShingle	Concrete Structures Column Retrofit Finite Element Method Bond Slip Caglar,Naci Sichko,Alexander Sezen,Halil Bicici,Erkan Demir,Aydin Farah,A. Farhan Interface slip model for reinforced concrete columns strengthened with concrete jacketing
description	Abstract Retrofit and strengthening of columns can be an effective solution to improve the capacity of reinforced concrete (RC) structures when the structural details and strength are insufficient to resist extreme loads. When concrete jacketing is used by enlarging the existing RC column cross section, the main concern is the performance loss between new and old concrete due to potential interface slip. There are three major options to improve slip resistance at the interface including surface roughening, dowels, or both. In this study, these methods are evaluated and parameters are proposed to model the load transfer along the interface between the existing and new concrete. The response of reinforced concrete jacketed columns is simulated using the proposed numerical models. The effectiveness and need for surface roughening, dowels, or their combination are investigated. A slip coefficient is proposed to model the friction between new and old concrete materials based on comparison of the experimental data and numerical simulations.
author	Caglar,Naci Sichko,Alexander Sezen,Halil Bicici,Erkan Demir,Aydin Farah,A. Farhan
author_facet	Caglar,Naci Sichko,Alexander Sezen,Halil Bicici,Erkan Demir,Aydin Farah,A. Farhan
author_sort	Caglar,Naci
title	Interface slip model for reinforced concrete columns strengthened with concrete jacketing
title_short	Interface slip model for reinforced concrete columns strengthened with concrete jacketing
title_full	Interface slip model for reinforced concrete columns strengthened with concrete jacketing
title_fullStr	Interface slip model for reinforced concrete columns strengthened with concrete jacketing
title_full_unstemmed	Interface slip model for reinforced concrete columns strengthened with concrete jacketing
title_sort	interface slip model for reinforced concrete columns strengthened with concrete jacketing
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2020000200180
work_keys_str_mv	AT caglarnaci interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing AT sichkoalexander interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing AT sezenhalil interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing AT bicicierkan interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing AT demiraydin interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing AT farahafarhan interfaceslipmodelforreinforcedconcretecolumnsstrengthenedwithconcretejacketing
_version_	1714206305985495040

Interface slip model for reinforced concrete columns strengthened with concrete jacketing

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