Abstract
The use of glass fiber–reinforced polymer (GFRP) bars in reinforced concrete (RC) structures has grown significantly in recent years, most notably in bridge deck applications, as they provide an innovative solution to address stringent durability requirements in severe environmental conditions. However, concerns regarding the degradation of mechanical properties of GFRP bars and their bond to concrete at elevated temperature, as well as a lack of fire design guidance, remain obstacles to their widespread use in buildings. This paper presents a review of the available literature regarding the fire performance of GFRP-RC structural members, as well as a summary of relevant research needs. First, it addresses the effects of elevated temperature on the thermal and mechanical properties of GFRP bars. Second, experimental and numerical studies of GFRP bars’ bond behavior at elevated temperature, and of the fire performance of GFRP-RC beams and slabs, are discussed. Finally, the available fire design guidance is discussed, and recommendations for future research are given.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors wish to acknowledge the support of CERIS research center (FCT funding UIDB/04625/2020). The first author also wishes to thank the financial support of FCT through the scholarship SFRH/BD/129681/2017.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 27 • Issue 5 • October 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Jan 13, 2023
Accepted: Jun 15, 2023
Published online: Aug 8, 2023
Published in print: Oct 1, 2023
Discussion open until: Jan 8, 2024
ASCE Technical Topics:
- Bars (structure)
- Concrete
- Disaster risk management
- Disasters and hazards
- Engineering fundamentals
- Engineering materials (by type)
- Fiber reinforced polymer
- Fibers
- Fires
- Glass fibers
- Man-made disasters
- Materials engineering
- Measurement (by type)
- Polymer
- Reinforced concrete
- Structural behavior
- Structural engineering
- Structural members
- Structural systems
- Synthetic materials
- Temperature effects
- Temperature measurement
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