Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling
This study presents an experimental investigation into the use of dry glass fiber hoops for externally confining cylindrical concrete specimens. Various fiber configurations, including different fiber areas and lateral spacings, were applied to assess the confinement effects on the axial and lateral...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025000295 |
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| author | Ahmed Abd El Fattah |
| author_facet | Ahmed Abd El Fattah |
| author_sort | Ahmed Abd El Fattah |
| collection | DOAJ |
| description | This study presents an experimental investigation into the use of dry glass fiber hoops for externally confining cylindrical concrete specimens. Various fiber configurations, including different fiber areas and lateral spacings, were applied to assess the confinement effects on the axial and lateral behavior of the concrete under compression. The specimens were subjected to axial compression tests, during which axial force, axial strain, and lateral strain were recorded. The axial stress-strain response demonstrated two distinct behaviors depending on the level of confinement, with higher levels of confinement resulting in substantial increases in both strength and ductility. The strength and corresponding axial strain were found to increase proportionally with the level of confinement, significantly exceeding the performance of unconfined concrete. A comparative analysis highlighted that dry glass fiber hoops provided competitive confinement efficiency relative to FRP sheets and hemp ropes, particularly in terms of strength and ductility. The study also introduced an analytical model to predict the stress-strain behavior of confined concrete using dry fibers. This model successfully captured key points such as peak axial strength, corresponding axial and lateral strain, and ultimate axial strain, showing strong correlation with the experimental data. Compared to traditional FRP jacketing, this innovative confinement method offers advantages such as ease of application, cleaner construction, and no need for epoxy adhesives, making it a promising alternative for structural retrofitting and strengthening. |
| format | Article |
| id | doaj-art-3e8d624ace05460bb62c371853ec8e0d |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-3e8d624ace05460bb62c371853ec8e0d2025-01-12T05:25:38ZengElsevierResults in Engineering2590-12302025-03-0125103941Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modelingAhmed Abd El Fattah0Associate Professor, Architecture & City Design Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaThis study presents an experimental investigation into the use of dry glass fiber hoops for externally confining cylindrical concrete specimens. Various fiber configurations, including different fiber areas and lateral spacings, were applied to assess the confinement effects on the axial and lateral behavior of the concrete under compression. The specimens were subjected to axial compression tests, during which axial force, axial strain, and lateral strain were recorded. The axial stress-strain response demonstrated two distinct behaviors depending on the level of confinement, with higher levels of confinement resulting in substantial increases in both strength and ductility. The strength and corresponding axial strain were found to increase proportionally with the level of confinement, significantly exceeding the performance of unconfined concrete. A comparative analysis highlighted that dry glass fiber hoops provided competitive confinement efficiency relative to FRP sheets and hemp ropes, particularly in terms of strength and ductility. The study also introduced an analytical model to predict the stress-strain behavior of confined concrete using dry fibers. This model successfully captured key points such as peak axial strength, corresponding axial and lateral strain, and ultimate axial strain, showing strong correlation with the experimental data. Compared to traditional FRP jacketing, this innovative confinement method offers advantages such as ease of application, cleaner construction, and no need for epoxy adhesives, making it a promising alternative for structural retrofitting and strengthening.http://www.sciencedirect.com/science/article/pii/S2590123025000295Dry glass fibers confinementAxial stress-strain relationshipAnalytical modelingCircular columnsLateral strain |
| spellingShingle | Ahmed Abd El Fattah Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling Results in Engineering Dry glass fibers confinement Axial stress-strain relationship Analytical modeling Circular columns Lateral strain |
| title | Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling |
| title_full | Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling |
| title_fullStr | Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling |
| title_full_unstemmed | Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling |
| title_short | Confinement of concrete cylinders using dry glass fiber hoops: Experimental investigation and analytical modeling |
| title_sort | confinement of concrete cylinders using dry glass fiber hoops experimental investigation and analytical modeling |
| topic | Dry glass fibers confinement Axial stress-strain relationship Analytical modeling Circular columns Lateral strain |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025000295 |
| work_keys_str_mv | AT ahmedabdelfattah confinementofconcretecylindersusingdryglassfiberhoopsexperimentalinvestigationandanalyticalmodeling |