Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview
Ageing concrete infrastructures are known to be facing deterioration, especially regarding the corrosion of their reinforcing steel. As a solution, glass fibre-reinforced plastic (GFRP) bars are now considered a reinforcement alternative to conventional steel, and design codes now exist for designin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/3/1463 |
| _version_ | 1797625173486075904 |
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| author | Rajeev Devaraj Ayodele Olofinjana Christophe Gerber |
| author_facet | Rajeev Devaraj Ayodele Olofinjana Christophe Gerber |
| author_sort | Rajeev Devaraj |
| collection | DOAJ |
| description | Ageing concrete infrastructures are known to be facing deterioration, especially regarding the corrosion of their reinforcing steel. As a solution, glass fibre-reinforced plastic (GFRP) bars are now considered a reinforcement alternative to conventional steel, and design codes now exist for designing GFRP-RC structures. However, there is a need to improve on addressing the limited plastic yield in GFRPs. Consequently, it is suggested that a hybrid steel–GFRP RC system can enhance the mechanical performance of flexure beams up to the required standard and, at the same time, address the durability concerns of steel-only RC beams. This overview presents the studies conducted to enhance the performance of hybrid GFRP–steel RC beams by reviewing the analytical models proposed to improve the various aspects of reinforcement design. The models consider mechanical effects such as ductility, crack width, flexure and shear, and the physical effects such as thermal stability when exposed to the temperature. Though the evidence reviewed supports the viability of the hybrid GFRP–steel reinforcing system to address ductility, much is still required in the area of research, as highlighted in the future outlook. |
| first_indexed | 2024-03-11T09:52:49Z |
| format | Article |
| id | doaj.art-2d6b6fd17d0546d09cce5f35262d0558 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:52:49Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2d6b6fd17d0546d09cce5f35262d05582023-11-16T16:05:46ZengMDPI AGApplied Sciences2076-34172023-01-01133146310.3390/app13031463Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An OverviewRajeev Devaraj0Ayodele Olofinjana1Christophe Gerber2School of Science, Technology and Engineering, University of the Sunshine Coast, 90 Sippy Downs Dr, Sippy Downs, QLD 4556, AustraliaSchool of Science, Technology and Engineering, University of the Sunshine Coast, 90 Sippy Downs Dr, Sippy Downs, QLD 4556, AustraliaSchool of Science, Technology and Engineering, University of the Sunshine Coast, 90 Sippy Downs Dr, Sippy Downs, QLD 4556, AustraliaAgeing concrete infrastructures are known to be facing deterioration, especially regarding the corrosion of their reinforcing steel. As a solution, glass fibre-reinforced plastic (GFRP) bars are now considered a reinforcement alternative to conventional steel, and design codes now exist for designing GFRP-RC structures. However, there is a need to improve on addressing the limited plastic yield in GFRPs. Consequently, it is suggested that a hybrid steel–GFRP RC system can enhance the mechanical performance of flexure beams up to the required standard and, at the same time, address the durability concerns of steel-only RC beams. This overview presents the studies conducted to enhance the performance of hybrid GFRP–steel RC beams by reviewing the analytical models proposed to improve the various aspects of reinforcement design. The models consider mechanical effects such as ductility, crack width, flexure and shear, and the physical effects such as thermal stability when exposed to the temperature. Though the evidence reviewed supports the viability of the hybrid GFRP–steel reinforcing system to address ductility, much is still required in the area of research, as highlighted in the future outlook.https://www.mdpi.com/2076-3417/13/3/1463glass fibre reinforced polymer (GFRP)hybrid GFRP-steel reinforcementconcrete beamsductilityflexural design |
| spellingShingle | Rajeev Devaraj Ayodele Olofinjana Christophe Gerber Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview Applied Sciences glass fibre reinforced polymer (GFRP) hybrid GFRP-steel reinforcement concrete beams ductility flexural design |
| title | Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview |
| title_full | Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview |
| title_fullStr | Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview |
| title_full_unstemmed | Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview |
| title_short | Making a Case for Hybrid GFRP-Steel Reinforcement System in Concrete Beams: An Overview |
| title_sort | making a case for hybrid gfrp steel reinforcement system in concrete beams an overview |
| topic | glass fibre reinforced polymer (GFRP) hybrid GFRP-steel reinforcement concrete beams ductility flexural design |
| url | https://www.mdpi.com/2076-3417/13/3/1463 |
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