Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings
The purpose of this study is to explore the numerical behavior of circular RC short columns with different degrees of confinement with CFRP (0%, 25%, 50%, and 100%) wraps under concentric and eccentric loading. The numerical analysis carried out by using an improved concrete plastic-damage model (C...
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Gruppo Italiano Frattura
2022-12-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://3.64.71.86/index.php/fis/article/view/3892 |
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| author | Ibrahim Harba Abdulkhalik Abdulridha Ahmed AL-Shaar |
| author_facet | Ibrahim Harba Abdulkhalik Abdulridha Ahmed AL-Shaar |
| author_sort | Ibrahim Harba |
| collection | DOAJ |
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The purpose of this study is to explore the numerical behavior of circular RC short columns with different degrees of confinement with CFRP (0%, 25%, 50%, and 100%) wraps under concentric and eccentric loading. The numerical analysis carried out by using an improved concrete plastic-damage model (CDPM) implemented in ABAQUS software for finite element (FE) analysis. The FE model simulated a total of twenty-four numerical specimens. The findings were matched to published experimental test results in the literature. The findings of the FE model and the experimental data were good similar. As a consequence, the model was found to be valid. The numerical results shows that as load eccentricity increased, the load carrying capacity of columns decreased for unconfined specimens, whereas the decline in strength for confined specimens becomes limited as the degrees of confinement ratio increased. In addition, increasing the CFRP confinement ratio improves the column's load-bearing capability at the same load eccentricity.
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| format | Article |
| id | doaj-art-aaeda8b9bae545adba61ed84bda17977 |
| institution | DOAJ |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-aaeda8b9bae545adba61ed84bda179772025-08-20T02:51:43ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-12-011763Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric LoadingsIbrahim Harba 0Abdulkhalik Abdulridha1Ahmed AL-Shaar2Department of Civil Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, IraqDepartment of Civil Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, IraqDepartment of Civil Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, Iraq The purpose of this study is to explore the numerical behavior of circular RC short columns with different degrees of confinement with CFRP (0%, 25%, 50%, and 100%) wraps under concentric and eccentric loading. The numerical analysis carried out by using an improved concrete plastic-damage model (CDPM) implemented in ABAQUS software for finite element (FE) analysis. The FE model simulated a total of twenty-four numerical specimens. The findings were matched to published experimental test results in the literature. The findings of the FE model and the experimental data were good similar. As a consequence, the model was found to be valid. The numerical results shows that as load eccentricity increased, the load carrying capacity of columns decreased for unconfined specimens, whereas the decline in strength for confined specimens becomes limited as the degrees of confinement ratio increased. In addition, increasing the CFRP confinement ratio improves the column's load-bearing capability at the same load eccentricity. https://3.64.71.86/index.php/fis/article/view/3892short circular columnnumerical analysisplastic-damage modelCFRPeccentric loadABAQUS software |
| spellingShingle | Ibrahim Harba Abdulkhalik Abdulridha Ahmed AL-Shaar Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings Fracture and Structural Integrity short circular column numerical analysis plastic-damage model CFRP eccentric load ABAQUS software |
| title | Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings |
| title_full | Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings |
| title_fullStr | Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings |
| title_full_unstemmed | Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings |
| title_short | Numerical Analysis of Reinforced Concrete Circular Columns Strengthening With CFRP under Concentric and Eccentric Loadings |
| title_sort | numerical analysis of reinforced concrete circular columns strengthening with cfrp under concentric and eccentric loadings |
| topic | short circular column numerical analysis plastic-damage model CFRP eccentric load ABAQUS software |
| url | https://3.64.71.86/index.php/fis/article/view/3892 |
| work_keys_str_mv | AT ibrahimharba numericalanalysisofreinforcedconcretecircularcolumnsstrengtheningwithcfrpunderconcentricandeccentricloadings AT abdulkhalikabdulridha numericalanalysisofreinforcedconcretecircularcolumnsstrengtheningwithcfrpunderconcentricandeccentricloadings AT ahmedalshaar numericalanalysisofreinforcedconcretecircularcolumnsstrengtheningwithcfrpunderconcentricandeccentricloadings |