Structural flexural strengthening through material bonded to the concrete substrate

Authors

  • Victor Hugo Dalosto de Oliveira Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Rodolfo Alves Carvalho Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Rodolfo Rabelo Neves Department of Materials Engineering and Construction, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil
  • Luana Ferreira Borges Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Paulo Chaves de Rezende Martins Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Marcos Honorato de Oliveira Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • João Paulo de Almeida Siqueira Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Rafael de Almeida Sobral Department of Civil and Environmental Engineering, University of Brasília, SG-12, Campus Darcy Ribeiro, Asa Norte, Brasília, DF, 70910-990, Brazil
  • Sidney Luan Teixeira de Nazaré School of Exact, Architecture and Environment, Catholic University of Brasília, QS 07 - Lote 01, Taguatinga, Brasília, DF, 71966-700, Brazil
  • Carlos Henrique de Moura Cunhac School of Exact, Architecture and Environment, Catholic University of Brasília, QS 07 - Lote 01, Taguatinga, Brasília, DF, 71966-700, Brazil

DOI:

https://doi.org/10.14311/APP.2022.33.0431

Keywords:

attached materials, calculation guide, structural strengthening

Abstract

This article proposes an alternative method for the structural design of reinforced concrete elements strengthened in bending by metallic plates or fiber-reinforced polymer (FRP) bonded to the concrete substrate. It is proposed a new calculation procedure for the strengthening using thin adhered material bonded to the element surface that dispenses the iterative process generally used in the design. The proposed routine is validated by comparison with other methods. A practical example is also presented, applying the procedure to an element of a building where a load change was foreseen. As result, it was verified that the proposed procedure provides values similar to the trial-and-error method used in the FRP strengthening design. Results are also coherent with other methods available in the literature for metallic plates. Therefore, since this routine obtains similar values without using an iterative method, its applicability in the design becomes advantageous.

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Published

2022-03-03

How to Cite

Oliveira, V. H. D. de ., Carvalho, R. A. ., Neves, R. R. ., Borges, L. F. ., Martins, P. C. de R. ., Oliveira, M. H. de ., Siqueira, J. P. de A. ., Sobral, R. de A. ., Nazaré, S. L. T. de ., & Cunhac, C. H. de M. . (2022). Structural flexural strengthening through material bonded to the concrete substrate. Acta Polytechnica CTU Proceedings, 33, 431–436. https://doi.org/10.14311/APP.2022.33.0431

Issue

Vol. 33 (2022): fib International Conference on Concrete Sustainability

Section

Articles