Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns
This paper presents the results of an experimental study involving 20 tests performed on elliptical concrete columns confined with externally bonded carbon fiber-reinforced polymer (EB-CFRP) laminates. The study aimed to evaluate the effects of elliptical aspect ratio (A/B) as well as confinement ri...
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| مؤلفون آخرون: | , , |
| التنسيق: | article |
| منشور في: |
2024
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://hdl.handle.net/11073/32575 |
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| _version_ | 1864513437957095424 |
|---|---|
| author | Benzeguir, Zine |
| author2 | Chaallal, Omar Godat, Ahmed Hawileh, Rami |
| author2_role | author author author |
| author_facet | Benzeguir, Zine Chaallal, Omar Godat, Ahmed Hawileh, Rami |
| author_role | author |
| dc.creator.none.fl_str_mv | Benzeguir, Zine Chaallal, Omar Godat, Ahmed Hawileh, Rami |
| dc.date.none.fl_str_mv | 2024-11-29 2026-01-08T04:43:44Z 2026-01-08T04:43:44Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Benzeguir, Z. E. A., Chaallal, O., Godat, A., & Hawileh, R. A. (2024). Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns. Symmetry, 16(12), 1595. https://doi.org/10.3390/sym16121595 2073-8994 https://hdl.handle.net/11073/32575 10.3390/sym16121595 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | MDPI |
| dc.relation.none.fl_str_mv | https://doi.org/10.3390/sym16121595 |
| dc.rights.none.fl_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| dc.subject.none.fl_str_mv | Elliptical Concrete Column Aspect Ratio Confinement Strengthening Eb-Cfrp Number Of Layers Compressive Strength Stress–Strain |
| dc.title.none.fl_str_mv | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| dc.type.none.fl_str_mv | Peer-Reviewed Published version info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | This paper presents the results of an experimental study involving 20 tests performed on elliptical concrete columns confined with externally bonded carbon fiber-reinforced polymer (EB-CFRP) laminates. The study aimed to evaluate the effects of elliptical aspect ratio (A/B) as well as confinement rigidity (number of EB-FRP layers) on confinement effectiveness. The experimental program consisted of one series of control concrete columns (unstrengthened) and three additional series, each one strengthened with one, two and three layers of EB-CFRP sheets, respectively. Furthermore, each series considered five elliptical aspect ratios (A/B) ranging from 1.0 to 1.6. Following compressive concentric tests until failure, the results were analyzed to characterize the confinement level with an increasing number of EB-CFRP layers as a function of the elliptical aspect ratio. The results show considerable enhancements in compressive strength and in the ductility of the confined columns. Furthermore, this improvement is amplified as the number of EB-CFRP layers increases, indicating a proportional relationship between the compressive strength and the number of CFRP layers. It is found that the ultimate strength of EB-CFRP-confined columns with three layers reached up to 130% compared to the control specimens. However, increasing the elliptical aspect ratio reduced the compressive strength and ductility of confined columns. This study investigated the relation between the CFRP hoop and axial strains and the elliptical aspect ratios. Moreover, through comparison, the results reveal that the prediction models proposed by the Canadian standards S806-12 and S6-19 do not capture the negative effect of the elliptical aspect ratio in confined concrete columns. |
| format | article |
| id | aus_67710eea9c45dae7112d5bb35d1d053e |
| identifier_str_mv | Benzeguir, Z. E. A., Chaallal, O., Godat, A., & Hawileh, R. A. (2024). Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns. Symmetry, 16(12), 1595. https://doi.org/10.3390/sym16121595 2073-8994 10.3390/sym16121595 |
| language_invalid_str_mv | en |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/32575 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | MDPI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
| spelling | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete ColumnsBenzeguir, ZineChaallal, OmarGodat, AhmedHawileh, RamiElliptical Concrete ColumnAspect RatioConfinementStrengtheningEb-CfrpNumber Of LayersCompressive StrengthStress–StrainThis paper presents the results of an experimental study involving 20 tests performed on elliptical concrete columns confined with externally bonded carbon fiber-reinforced polymer (EB-CFRP) laminates. The study aimed to evaluate the effects of elliptical aspect ratio (A/B) as well as confinement rigidity (number of EB-FRP layers) on confinement effectiveness. The experimental program consisted of one series of control concrete columns (unstrengthened) and three additional series, each one strengthened with one, two and three layers of EB-CFRP sheets, respectively. Furthermore, each series considered five elliptical aspect ratios (A/B) ranging from 1.0 to 1.6. Following compressive concentric tests until failure, the results were analyzed to characterize the confinement level with an increasing number of EB-CFRP layers as a function of the elliptical aspect ratio. The results show considerable enhancements in compressive strength and in the ductility of the confined columns. Furthermore, this improvement is amplified as the number of EB-CFRP layers increases, indicating a proportional relationship between the compressive strength and the number of CFRP layers. It is found that the ultimate strength of EB-CFRP-confined columns with three layers reached up to 130% compared to the control specimens. However, increasing the elliptical aspect ratio reduced the compressive strength and ductility of confined columns. This study investigated the relation between the CFRP hoop and axial strains and the elliptical aspect ratios. Moreover, through comparison, the results reveal that the prediction models proposed by the Canadian standards S806-12 and S6-19 do not capture the negative effect of the elliptical aspect ratio in confined concrete columns.Natural Sciences and Engineering Research Council of Canada (NSERC)Fonds de recherche du Québec—Nature et technologie (FRQNT)Deanship of Research and Graduate Studies (DRG) at Ajman UniversityMDPI2026-01-08T04:43:44Z2026-01-08T04:43:44Z2024-11-29Peer-ReviewedPublished versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfBenzeguir, Z. E. A., Chaallal, O., Godat, A., & Hawileh, R. A. (2024). Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns. Symmetry, 16(12), 1595. https://doi.org/10.3390/sym161215952073-8994https://hdl.handle.net/11073/3257510.3390/sym16121595enhttps://doi.org/10.3390/sym16121595Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/oai:repository.aus.edu:11073/325752026-01-08T12:28:10Z |
| spellingShingle | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns Benzeguir, Zine Elliptical Concrete Column Aspect Ratio Confinement Strengthening Eb-Cfrp Number Of Layers Compressive Strength Stress–Strain |
| status_str | publishedVersion |
| title | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| title_full | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| title_fullStr | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| title_full_unstemmed | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| title_short | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| title_sort | Experimental Investigation on the Effectiveness of EB-CFRP Confinement of Elliptical Concrete Columns |
| topic | Elliptical Concrete Column Aspect Ratio Confinement Strengthening Eb-Cfrp Number Of Layers Compressive Strength Stress–Strain |
| url | https://hdl.handle.net/11073/32575 |