Abstract
Fibre-reinforced polymer (FRP)-bonded concrete performance relies heavily on bond; therefore, bond-slip models have been developed with interfacial bond properties. Since the structural behaviour of the test specimens bonded with FRP and the failure mechanisms depend on these bond qualities, it is vital to know how sensitive they are. This work examines the interfacial bond-slip characteristics of a bond-slip model with two curves, an ascending and a descending curve, for their sensitivity. The results show that the fracture energy related to interfacial debonding significantly influences the maximum load capacity, while the shape of the ascending curve significantly influences the effective bond length. These results highlight the importance of considering the interfacial bond-slip properties when designing and evaluating concrete structures retrofitted with FRP.
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References
Li, J., Xie, J., Liu, F., Lu, Z.: A critical review and assessment for FRP-concrete bond systems with epoxy resin exposed to chloride environments. Compos. Struct. 229, 111372 (2019)
Augusthus-Nelson, L., Al-Allaf, M., Weekes, L.: Analytical modelling of bond-slip failure between epoxy bonded FRP and concrete substrate. Compos. Struct. 251, 112596 (2020)
Lu, X., Teng, J., Ye, L., Jiang, J.: Bond-slip models for FRP sheets/plates bonded to concrete. Eng. Struct. 27, 920–937 (2005)
Al-Allaf, M., Weekes, L., Augusthus-Nelson, L., Leach, P.: An experimental investigation into the bond-slip behaviour between CFRP composite and lightweight concrete. Constr. Build. Mater. 113, 15–27 (2016)
Li, Y., Chen, J., Yang, Z., Esmaeeli, E., Sha, W., Huang, Y.: Effects of concrete heterogeneity on FRP-concrete bond behaviour: experimental and mesoscale numerical studies. Compos. Struct. 275, 114436 (2021)
Biscaia, H., Chastre, C.: Design method and verification of steel plate anchorages for FRP-to-concrete bonded interfaces. Compos. Struct. 192, 52–66 (2018)
Al-Allaf, M., Weekes, L., Augusthus-Nelson, L.: Shear behaviour of lightweight concrete beams strengthened with CFRP composite. Mag. Concr. Res. 71, 949–964 (2019)
Augusthus Nelson, L., Weekes, L., Milani, G., Al-Allaf, M.: Generalised analytical solutions for linear and non-linear bond-slip models for externally bonded FRP to a concrete substrate. Eng. Struct. 298, 117025 (2024)
Mukhtar, F., Faysal, R.: A review of test methods for studying the FRP-concrete interfacial bond behavior. Constr. Build. Mater. 169, 877–887 (2018)
Al-Allaf, M., Weekes, L., Augusthus-Nelson, L.: 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 (2015)
Monti, G., Renzelli, M., Luciani, P.: FRP adhesion in uncracked and cracked concrete zones. In: Fibre-Reinforced Polymer Reinforcement For Concrete Structures, vol. 2, pp. 183–192 (2003)
Brosens, K., Van Gemert, D.: Anchorage design for externally bonded carbon fiber reinforced polymer laminates. In: ACI Symposium Publication, vol. 188, pp. 635–646 (1999)
Ko, H., Matthys, S., Palmieri, A., Sato, Y.: Development of a simplified bond stress-slip model for bonded FRP-concrete interfaces. Constr. Build. Mater. 68, 142–157 (2014)
Mazzotti, C., Savoia, M., Ferracuti, B.: An experimental study on delamination of FRP plates bonded to concrete. Constr. Build. Mater. 22, 1409–1421 (2008)
Qiao, P., Chen, Y.: Cohesive fracture simulation and failure modes of FRP-concrete bonded interfaces. Theor. Appl. Fract. Mech. 49, 213–225 (2008)
Dai, J., Ueda, T., Sato, Y.: 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 (2005)
Pan, J., Wu, Y.: Analytical modelling of bond behaviour between FRP plate and concrete. Compos. B Eng. 61, 17–25 (2014)
Dai, J., Ueda, T.: Local bond stress slip relations for FRP sheets-concrete interfaces. In: Fibre-Reinforced Polymer Reinforcement For Concrete Structures, vol. 2, pp. 143–152 (2003)
Augusthus-Nelson, L., Weekes, L., Milani, G.: 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.) MBMST 2023. LNCE, vol. 392, pp. 81–88. Springer, Cham (2024). https://doi.org/10.1007/978-3-031-44603-0_7
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Augusthus Nelson, L., Weekes, L., Milani, G. (2024). Influence of Interfacial Bond Properties on the Structural Response of Concrete Bonded with FRP. In: Benaissa, B., Capozucca, R., Khatir, S., Milani, G. (eds) Proceedings of the International Conference of Steel and Composite for Engineering Structures. ICSCES 2023. Lecture Notes in Civil Engineering, vol 486. Springer, Cham. https://doi.org/10.1007/978-3-031-57224-1_4
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