A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket

This paper studies the behavior of axially loaded RC columns which are confined with carbon fiber reinforced polymers’ sheet (CFRP) and steel jackets (SJ). The study is based on twelve axially loaded RC columns tested up to failure. It is divided into three schemes based on its strengthening type; e...

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Autores principales:	Ibraheem Rawaa S., Al-Zuhairi Alaa H.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	strengthening steel jacket carbon fiber reinforced polymer composite column Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ad3e4166f1c44b0a853eff78c6b5b5c9
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spelling	oai:doaj.org-article:ad3e4166f1c44b0a853eff78c6b5b5c92021-11-12T11:43:50ZA Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket2267-124210.1051/e3sconf/202131803002https://doaj.org/article/ad3e4166f1c44b0a853eff78c6b5b5c92021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/94/e3sconf_icge2021_03002.pdfhttps://doaj.org/toc/2267-1242This paper studies the behavior of axially loaded RC columns which are confined with carbon fiber reinforced polymers’ sheet (CFRP) and steel jackets (SJ). The study is based on twelve axially loaded RC columns tested up to failure. It is divided into three schemes based on its strengthening type; each scheme has four columns. The main parameters in this study were the compressive strength of the concrete and steel reinforcement ratio. Furthermore, the results of the experimental test showed a substantial enhancement in the column's load-carrying capacity. When compared to the original columns, the CFRP sheet had a significant effect on improving the ductility of the column by increasing the axial deformation by about 59.2 to 95.7%. On the other hand, the SJ contributed mostly to the column load-carrying capacity, which increased the capacity of RC concrete from 75 to 107%; because of its composite action comparing with the CFRP sheet action in which unidirectional lateral confinement is provided. Both methods produced completely different failure modes. The columns strengthened with CFRP sheet failed by rupture occurring in the sheet fibers. The strengthened with SJ failed due to the buckling that occurred in the steel angles due to the direct contact with the head of the column, and crushing in the concrete has occurred.Ibraheem Rawaa S.Al-Zuhairi Alaa H.EDP Sciencesarticlestrengtheningsteel jacketcarbon fiber reinforced polymercomposite columnEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 318, p 03002 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	strengthening steel jacket carbon fiber reinforced polymer composite column Environmental sciences GE1-350
spellingShingle	strengthening steel jacket carbon fiber reinforced polymer composite column Environmental sciences GE1-350 Ibraheem Rawaa S. Al-Zuhairi Alaa H. A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
description	This paper studies the behavior of axially loaded RC columns which are confined with carbon fiber reinforced polymers’ sheet (CFRP) and steel jackets (SJ). The study is based on twelve axially loaded RC columns tested up to failure. It is divided into three schemes based on its strengthening type; each scheme has four columns. The main parameters in this study were the compressive strength of the concrete and steel reinforcement ratio. Furthermore, the results of the experimental test showed a substantial enhancement in the column's load-carrying capacity. When compared to the original columns, the CFRP sheet had a significant effect on improving the ductility of the column by increasing the axial deformation by about 59.2 to 95.7%. On the other hand, the SJ contributed mostly to the column load-carrying capacity, which increased the capacity of RC concrete from 75 to 107%; because of its composite action comparing with the CFRP sheet action in which unidirectional lateral confinement is provided. Both methods produced completely different failure modes. The columns strengthened with CFRP sheet failed by rupture occurring in the sheet fibers. The strengthened with SJ failed due to the buckling that occurred in the steel angles due to the direct contact with the head of the column, and crushing in the concrete has occurred.
format	article
author	Ibraheem Rawaa S. Al-Zuhairi Alaa H.
author_facet	Ibraheem Rawaa S. Al-Zuhairi Alaa H.
author_sort	Ibraheem Rawaa S.
title	A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
title_short	A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
title_full	A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
title_fullStr	A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
title_full_unstemmed	A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket
title_sort	comparative study on behavior of rc columns strengthened by cfrp and steel jacket
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ad3e4166f1c44b0a853eff78c6b5b5c9
work_keys_str_mv	AT ibraheemrawaas acomparativestudyonbehaviorofrccolumnsstrengthenedbycfrpandsteeljacket AT alzuhairialaah acomparativestudyonbehaviorofrccolumnsstrengthenedbycfrpandsteeljacket AT ibraheemrawaas comparativestudyonbehaviorofrccolumnsstrengthenedbycfrpandsteeljacket AT alzuhairialaah comparativestudyonbehaviorofrccolumnsstrengthenedbycfrpandsteeljacket
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A Comparative Study on Behavior of RC Columns Strengthened by CFRP and Steel Jacket

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