Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets
Concrete corbels are short cantilever constructions that may lose their strength over time because of loads that happen over and over again. As an external bonding method for reinforcement, carbon fiber-reinforced polymer (CFRP) strips are utilized to improve performance. This study examines the in...
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Gruppo Italiano Frattura
2025-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://fracturae.com/index.php/fis/article/view/5466 |
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| author | Salah Aborgheef Abdulkhalik Jabbar Abdulridha |
| author_facet | Salah Aborgheef Abdulkhalik Jabbar Abdulridha |
| author_sort | Salah Aborgheef |
| collection | DOAJ |
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Concrete corbels are short cantilever constructions that may lose their strength over time because of loads that happen over and over again. As an external bonding method for reinforcement, carbon fiber-reinforced polymer (CFRP) strips are utilized to improve performance. This study examines the influence of CFRP strips on the reinforcement and repair of conventional concrete corbels by concentrating on ultimate strength, performance under monotonic loads, and the effects of varying damage ratios during restoration. As part of a study project, nine double-concrete corbels with the same size and reinforcement had to be manufactured and tested. The samples were split into two groups: those with strip wrapping and those with side wrapping. Each group had three corbels that had already been damaged, one corbel that had been reinforced, and control specimens that had not been repaired. The results showed that side-wrapped corbels with CFRP reinforcement exhibited a 19.72% (SCS-0-1) improvement in strength and a 13.73% (RCS-50-1), 18.35% (RCS-60-1), and 4.15% (RCS-70-1) increase in ultimate load. Strip-wrapped corbels showed improvements of 9.86% (RCST-50-2), 5.44% (RCST-60-2), and 0.51% (RCST-70-2), whereas strengthening (SCST-0-2) showed an improvement of 19.72%. Also, specimens wrapped in CFRP showed less ultimate deflection than their un-strengthened counterparts at the same damage levels, which shows that they perform better and last longer.
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| format | Article |
| id | doaj-art-23d9d9235b6d4dedaf78bcce6e8b55a4 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-23d9d9235b6d4dedaf78bcce6e8b55a42025-08-26T06:52:15ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932025-07-01197410.3221/IGF-ESIS.74.03Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheetsSalah Aborgheef0https://orcid.org/0009-0008-4793-9601Abdulkhalik Jabbar Abdulridha 1Department of Civil Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, IraqDepartment of Civil Engineering, College of Engineering, Al-Nahrain University, Jadriya, Baghdad, Iraq Concrete corbels are short cantilever constructions that may lose their strength over time because of loads that happen over and over again. As an external bonding method for reinforcement, carbon fiber-reinforced polymer (CFRP) strips are utilized to improve performance. This study examines the influence of CFRP strips on the reinforcement and repair of conventional concrete corbels by concentrating on ultimate strength, performance under monotonic loads, and the effects of varying damage ratios during restoration. As part of a study project, nine double-concrete corbels with the same size and reinforcement had to be manufactured and tested. The samples were split into two groups: those with strip wrapping and those with side wrapping. Each group had three corbels that had already been damaged, one corbel that had been reinforced, and control specimens that had not been repaired. The results showed that side-wrapped corbels with CFRP reinforcement exhibited a 19.72% (SCS-0-1) improvement in strength and a 13.73% (RCS-50-1), 18.35% (RCS-60-1), and 4.15% (RCS-70-1) increase in ultimate load. Strip-wrapped corbels showed improvements of 9.86% (RCST-50-2), 5.44% (RCST-60-2), and 0.51% (RCST-70-2), whereas strengthening (SCST-0-2) showed an improvement of 19.72%. Also, specimens wrapped in CFRP showed less ultimate deflection than their un-strengthened counterparts at the same damage levels, which shows that they perform better and last longer. https://fracturae.com/index.php/fis/article/view/5466RehabilitationDamagedCorbelCFRP sheetsStructural repair |
| spellingShingle | Salah Aborgheef Abdulkhalik Jabbar Abdulridha Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets Fracture and Structural Integrity Rehabilitation Damaged Corbel CFRP sheets Structural repair |
| title | Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets |
| title_full | Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets |
| title_fullStr | Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets |
| title_full_unstemmed | Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets |
| title_short | Optimizing different damaged reinforced concrete corbel characteristics utilizing CFRP sheets |
| title_sort | optimizing different damaged reinforced concrete corbel characteristics utilizing cfrp sheets |
| topic | Rehabilitation Damaged Corbel CFRP sheets Structural repair |
| url | https://fracturae.com/index.php/fis/article/view/5466 |
| work_keys_str_mv | AT salahaborgheef optimizingdifferentdamagedreinforcedconcretecorbelcharacteristicsutilizingcfrpsheets AT abdulkhalikjabbarabdulridha optimizingdifferentdamagedreinforcedconcretecorbelcharacteristicsutilizingcfrpsheets |