Influence of anchorage on flexural strength of beams strengthened with CFRP sheets

  • Mauricio de Pina Ferreira Faculdade de Engenharia Civil, Universidade Federal do Pará, Belém http://orcid.org/0000-0001-8905-9479
  • Marcos Honorato de Oliveira Departamento de Engenharia Civil e Ambiental, Universidade de Brasília, Brasília http://orcid.org/0000-0003-1251-7923
  • Aarão Ferreira Lima Neto Núcleo de Desenvolvimento Amazônico em Engenharia, Universidade Federal do Pará, Tucuruí http://orcid.org/0000-0002-5911-1368
  • Luamim Sales Tapajós Faculdade de Engenharia Civil, Universidade Federal do Oeste do Pará, Itaituba http://orcid.org/0000-0003-4776-9338
  • Alex Nascimento Pós-graduação em Engenharia Civil, Universidade Federal do Pará, Belém http://orcid.org/0000-0002-9989-6585
  • Marília Caires Freire Núcleo de Desenvolvimento Amazônico em Engenharia, Universidade Federal do Pará, Tucuruí http://orcid.org/0000-0003-1303-0754
DOI: https://doi.org/10.21041/ra.v9i1.269
Keywords: reinforced concrete, flexural strengthening, CFRP sheets, anchorage

Abstract

In order to evaluate the influence of anchorage on the flexural strength of beams strengthened with Carbon Fiber Reinforced Polymer (CFRP) sheets, the experimental results of 126 tests in the literature and of an unprecedented series with 4 reinforced concrete beams, tested by these authors, were analyzed. The parameters affecting the performance and the strength of the beams are evaluated, and the design criteria of fib Bulletin 14 (2001) and ACI 440-2R (2008) are discussed. It was observed that, even with auxiliary devices in the PRFC anchorage, premature failure is possible, and also that both theoretical recommendations lead to safe estimates, but excessively conservative in cases where the anchorage of the PRFC sheet is properly done.

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Published
2018-12-30
How to Cite
de Pina Ferreira, M., Honorato de Oliveira, M., Lima Neto, A. F., Sales TapajósL., Nascimento, A., & Caires Freire, M. (2018). Influence of anchorage on flexural strength of beams strengthened with CFRP sheets. Revista ALCONPAT, 9(1), 30 - 47. https://doi.org/10.21041/ra.v9i1.269
Issue
Vol. 9 No. 1 (2019)
Section
Applied Research

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