Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP

The most common method of strengthening columns is confining them with FRP composites, which increases their ultimate axial and lateral load capacity. The main objective of this research is to investigate square and rectangular RC columns strengthened with FRP composites. For this purpose, an existi...

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Autores principales:	Masooud Mahmoudabadi, fereshte sakhaeipour
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	reinforced concrete columns enclose abaqus cfrp column ultimate capacity Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/2479e76dc5184e329bd88f4423644436
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spelling	oai:doaj.org-article:2479e76dc5184e329bd88f44236444362021-11-08T15:53:49ZNumerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP2476-39772538-261610.22065/jsce.2018.138522.1603https://doaj.org/article/2479e76dc5184e329bd88f44236444362020-04-01T00:00:00Zhttps://www.jsce.ir/article_79383_2c02b2bf7dc506da4d3f813400ac123f.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The most common method of strengthening columns is confining them with FRP composites, which increases their ultimate axial and lateral load capacity. The main objective of this research is to investigate square and rectangular RC columns strengthened with FRP composites. For this purpose, an existing laboratory sample was initially modeled in Abaqus software. As a result, the accuracy of modeling was proven as the laboratory test results and the results generated by the software were compared and showed to be close. Then, with regard to variables such as cross-sectional shape and dimensions of the column and the number of composite layers, 18 analytical samples were determined and modeled in Abaqus software. The samples were divided into two groups of 9: square cross-sections and rectangular cross-sections. Each group included three non-reinforced samples, three samples reinforced with one layer and three samples reinforced with two layers of CFRP. The results obtained from the finite element analysis of these samples showed that the cross-sectional shape of the column did not affect the ultimate axial load capacity, but affected the ultimate lateral load capacity. Also, adding CFRP layers had a profound effect on the ultimate lateral load capacity of the columns and unlike the ultimate axial load capacity, the presence of the second layer of CFRP was very effective. Moreover, as the length-to-width ratio in rectangular samples and the dimensions in square samples increased, the effect of the number of layers on the ultimate axial and lateral load capacity and the energy absorbed by the column decreased.Masooud Mahmoudabadifereshte sakhaeipourIranian Society of Structrual Engineering (ISSE)articlereinforced concrete columnsencloseabaquscfrpcolumn ultimate capacityBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss شماره ویژه 1 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	reinforced concrete columns enclose abaqus cfrp column ultimate capacity Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	reinforced concrete columns enclose abaqus cfrp column ultimate capacity Bridge engineering TG1-470 Building construction TH1-9745 Masooud Mahmoudabadi fereshte sakhaeipour Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
description	The most common method of strengthening columns is confining them with FRP composites, which increases their ultimate axial and lateral load capacity. The main objective of this research is to investigate square and rectangular RC columns strengthened with FRP composites. For this purpose, an existing laboratory sample was initially modeled in Abaqus software. As a result, the accuracy of modeling was proven as the laboratory test results and the results generated by the software were compared and showed to be close. Then, with regard to variables such as cross-sectional shape and dimensions of the column and the number of composite layers, 18 analytical samples were determined and modeled in Abaqus software. The samples were divided into two groups of 9: square cross-sections and rectangular cross-sections. Each group included three non-reinforced samples, three samples reinforced with one layer and three samples reinforced with two layers of CFRP. The results obtained from the finite element analysis of these samples showed that the cross-sectional shape of the column did not affect the ultimate axial load capacity, but affected the ultimate lateral load capacity. Also, adding CFRP layers had a profound effect on the ultimate lateral load capacity of the columns and unlike the ultimate axial load capacity, the presence of the second layer of CFRP was very effective. Moreover, as the length-to-width ratio in rectangular samples and the dimensions in square samples increased, the effect of the number of layers on the ultimate axial and lateral load capacity and the energy absorbed by the column decreased.
format	article
author	Masooud Mahmoudabadi fereshte sakhaeipour
author_facet	Masooud Mahmoudabadi fereshte sakhaeipour
author_sort	Masooud Mahmoudabadi
title	Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
title_short	Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
title_full	Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
title_fullStr	Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
title_full_unstemmed	Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP
title_sort	numerical analysis on the influence of the cross section of ultimate capacity of reinforced concrete columns reinforced with cfrp
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/2479e76dc5184e329bd88f4423644436
work_keys_str_mv	AT masooudmahmoudabadi numericalanalysisontheinfluenceofthecrosssectionofultimatecapacityofreinforcedconcretecolumnsreinforcedwithcfrp AT fereshtesakhaeipour numericalanalysisontheinfluenceofthecrosssectionofultimatecapacityofreinforcedconcretecolumnsreinforcedwithcfrp
_version_	1718441552510976000

Numerical Analysis on the Influence of the Cross Section of Ultimate Capacity of Reinforced Concrete Columns Reinforced with CFRP

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