The current study has two objectives: to validate the ability of the Atena finite-element software to estimate the deformations of reinforced concrete (RC) elements strengthened with fiber-reinforced polymer (FRP) sheets and to assess the effect of FRP-to-concrete bond strength on the results of numerical simulation. It is shown that the bond strength has to be selected according to the overall stiffness of the composite element. The numerical results found are corroborated experimentally by tensile tests of RC elements strengthened with basalt FRP sheets.
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Acknowledgments
The authors are deeply grateful to G. Zegeris (Joint-Stock Company Poliforsa) for the BFRP test specimens and adhesives provided V. Gribniak and A. K. Arnautov also express their gratitude to the European Social Fund (project No. 2013/0019/1DP/1.1.1.2.0/13/APIA/VIAA/062) for support in the scientific investigations.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 50, No. 5, pp. 933-942, September-October, 2014.
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Gribniak, V., Arnautov, A.K., Kaklauskas, G. et al. Deformation Analysis of RC Ties Externally Strengthened with FRP Sheets. Mech Compos Mater 50, 669–676 (2014). https://doi.org/10.1007/s11029-014-9454-7
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DOI: https://doi.org/10.1007/s11029-014-9454-7