Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings

The high compressive strength concrete is especially advantageous in compressed members such as columns, which can be made more slender and consequently, make economic benefits possible. This paper presents a nonlinear finite element analysis of eleven square high – strength plain and reinforced co...

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Main Author: Ibrahim S.I . Harba
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2012-09-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1257
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author Ibrahim S.I . Harba
author_facet Ibrahim S.I . Harba
author_sort Ibrahim S.I . Harba
collection DOAJ
description The high compressive strength concrete is especially advantageous in compressed members such as columns, which can be made more slender and consequently, make economic benefits possible. This paper presents a nonlinear finite element analysis of eleven square high – strength plain and reinforced concrete columns confined with transverse steel under concentric and eccentric compressive loading. In this study, the columns were modeled as discrete elements using ANSYS 12.1 finite element software. Concrete was modeled with 8-node SOLID65 elements that can translate either in the x-, y-, or z- axis direction. Longitudinal and transverse steels were modeled as discrete elements using 3D-LINK 8 bar elements. The nonlinear constitutive laws of unconfined and confined reinforced concrete columns were implemented in the modeling. The results indicate that the axial stress-strain relationships obtained from the analytical model using ANSYS are in good agreement with the experimental data. This has been confirmed with the insignificant difference (1% to 10%) between the analytical and experimental results. 
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spelling doaj.art-7b19ba2a88ab4d4eb9821439b7de87302022-12-22T03:35:35ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-09-01163Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings Ibrahim S.I . Harba0Department of Civil Engineering, AL-Nahrein University, Baghdad, Iraq The high compressive strength concrete is especially advantageous in compressed members such as columns, which can be made more slender and consequently, make economic benefits possible. This paper presents a nonlinear finite element analysis of eleven square high – strength plain and reinforced concrete columns confined with transverse steel under concentric and eccentric compressive loading. In this study, the columns were modeled as discrete elements using ANSYS 12.1 finite element software. Concrete was modeled with 8-node SOLID65 elements that can translate either in the x-, y-, or z- axis direction. Longitudinal and transverse steels were modeled as discrete elements using 3D-LINK 8 bar elements. The nonlinear constitutive laws of unconfined and confined reinforced concrete columns were implemented in the modeling. The results indicate that the axial stress-strain relationships obtained from the analytical model using ANSYS are in good agreement with the experimental data. This has been confirmed with the insignificant difference (1% to 10%) between the analytical and experimental results.  https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1257Nonlinear finite elementconfined concretehigh strength concrete
spellingShingle Ibrahim S.I . Harba
Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
Journal of Engineering and Sustainable Development
Nonlinear finite element
confined concrete
high strength concrete
title Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
title_full Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
title_fullStr Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
title_full_unstemmed Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
title_short Non Linear Finite Element Analysis of Confined HSC Columns Under Concentric and Eccentric Loadings
title_sort non linear finite element analysis of confined hsc columns under concentric and eccentric loadings
topic Nonlinear finite element
confined concrete
high strength concrete
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1257
work_keys_str_mv AT ibrahimsiharba nonlinearfiniteelementanalysisofconfinedhsccolumnsunderconcentricandeccentricloadings