Abstract
The performance of FRP-bonded concrete is heavily influenced by the properties of the bond between the two materials. Various bond-slip models incorporating interfacial bond properties have been developed to understand and predict this behaviour. In a bond-slip model, the interfacial bond properties are specified in terms of the bond shear stress at the interface and the associated slip or interfacial fracture toughness (energy). Therefore, it is crucial to determine the sensitivity of these properties to the structural response, as it affects the prediction of FRP-bonded test samples and debonding failure modes. This study investigates the sensitivities of interfacial bond-slip properties using a bond-slip model comprising ascending and descending curves. The results indicate that the interfacial fracture energy significantly affects the maximum load resistance, while the ascending curve has a substantial impact on the effective bond length. These findings shed light on the importance of interfacial bond properties in determining the performance and behaviour of FRP-bonded concrete structures.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Sen R (2015) Developments in the durability of FRP-concrete bond. Constr Build Mater 78:112–125
Al-Allaf M, Weekes L, Augusthus-Nelson L (2019) Shear behaviour of lightweight concrete beams strengthened with CFRP composite. Mag Concr Res 71:949–964
Ferracuti B, Savoia M, Mazzotti C (2007) Interface law for FRP-concrete delamination. Compos Struct 80:523–531
Lu X, Teng J, Ye L, Jiang J (2005) Bond-slip models for FRP sheets/plates bonded to concrete. Eng Struct 27:920–937
Pan J, Wu Y (2014) Analytical modelling of bond behaviour between FRP plate and concrete. Compos B Eng 61:17–25
Neubauer U, Rostasy F (1999) Bond failure of concrete fiber reinforced polymer plates at inclined cracks-experiments and fracture mechanics model. In: ACI symposium publication, vol 188, pp 369–382
Augusthus-Nelson L, Al-Allaf M, Weekes L (2020) Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate. Compos Struct 251:112596
Al-Allaf M, Weekes L, Augusthus-Nelson L, Leach P (2016) An experimental investigation into the bond-slip behaviour between CFRP composite and lightweight concrete. Constr Build Mater 113:15–27
Al-Allaf M, Weekes L, Augusthus-Nelson L (2015) Experimental study on bond-slip behaviour between CFRP sheets and lightweight concrete. In: Proceedings of the 8th biennial conference on advanced composites in construction (ACIC 2015), Cambridge, UK
Monti G, Renzelli M, Luciani P (2003) FRP adhesion in uncracked and cracked concrete zones. In: Fibre-reinforced polymer reinforcement for concrete structures, vol. 2, pp 183–192
Brosens K, Van Gemert D (1999) Anchorage design for externally bonded carbon fiber reinforced polymer laminates. In: ACI symposium publication, vol 188, pp 635–646
Ko H, Matthys S, Palmieri A, Sato Y (2014) Development of a simplified bond stress-slip model for bonded FRP-concrete interfaces. Constr Build Mater 68:142–157
Mazzotti C, Savoia M, Ferracuti B (2008) An experimental study on delamination of FRP plates bonded to concrete. Constr Build Mater 22:1409–1421
Qiao P, Chen Y (2008) Cohesive fracture simulation and failure modes of FRP-concrete bonded interfaces. Theor Appl Fract Mech 49:213–225
Dai J, Ueda T, Sato Y (2005) Development of the nonlinear bond stress-slip model of fiber reinforced plastics sheet-concrete interfaces with a simple method. J Compos Constr 9:52–62
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Augusthus-Nelson, L., Weekes, L., Milani, G. (2024). Sensitivities of Interfacial Bond-Sip Properties in Predicting the Behaviour of FRP-Strengthened Concrete. In: Barros, J.A.O., Kaklauskas, G., Zavadskas, E.K. (eds) Modern Building Materials, Structures and Techniques. MBMST 2023. Lecture Notes in Civil Engineering, vol 392. Springer, Cham. https://doi.org/10.1007/978-3-031-44603-0_7
Download citation
DOI: https://doi.org/10.1007/978-3-031-44603-0_7
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-44602-3
Online ISBN: 978-3-031-44603-0
eBook Packages: EngineeringEngineering (R0)