Experimental analysis of various configurations of metal sheets in the reinforcement of flexion of reinforced concrete beams

  • C. C. Deghenhard Civil Engineering Department; Laboratorio Experimental de Estructuras (LEE); Universidad de Extremo Sul Catarinense (UNESC) - Criciúma
  • T. Teixeira Civil Engineering Department; Laboratorio Experimental de Estructuras (LEE); Universidad de Extremo Sul Catarinense (UNESC) - Criciúma
  • A. Vargas Civil Engineering Department; Laboratorio Experimental de Estructuras (LEE); Universidad de Extremo Sul Catarinense (UNESC) - Criciúma
  • M. Vito Departamento de Engenharia Civil; Laboratório Experimental de Estruturas (LEE); Universidade do Extremo Sul Catarinense (UNESC) - Criciúma/SC; Brasil.
  • Â. C. Piccinini Civil Engineering Department; Laboratorio Experimental de Estructuras (LEE); Universidad de Extremo Sul Catarinense (UNESC) - Criciúma
  • B. Do Vale Silva Civil Engineering Department; Laboratorio Experimental de Estructuras (LEE); Universidad de Extremo Sul Catarinense (UNESC) - Criciúma
DOI: https://doi.org/10.21041/ra.v6i2.138
Keywords: structural reinforcement; cast steel plates; reinforced concrete beams

Abstract

The external structural reinforcing steel, in the way of steel sheets attached with epoxy adhesive, is an option to increase the load capacity of reinforced concrete elements. This study evaluated concrete beams reinforced with steel sheets SAE 1020 of different thicknesses (0.75, 1.50, and 2.25 mm), longitudes (80 and 150 cm), and configurations (U-shape or flat) with the purpose of reviewing and comparing the best practices with sheets adhered to the structural reinforcement. Twenty-one beams were built with a cross-section of 12 x 20 cm and a longitude of 200 cm, with C25 concrete, and flexion frame with 2 Ø10 mm. The beams where subject to a four-point flexural test, which allowed analyzing the optimal loads and vertical displacements. Thus, a comparison relative to the performance of the beams is presented.

Keywords: structural reinforcement; cast steel plates; reinforced concrete beams

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References

Alfaiate, J., Costa, R. (2004), "O refuerzo de vigas de betão armado com chapas metálicas coladas com resina", Métodos Computacionais em Engenharia, APMTAC, Portugal. pp. 1-13.

Ali, M. S. M., Oehlers, D. J., Bradford, M. A. (2005) "Debonding of steel plates adhesively bonded to the compression faces of RC beams", Construction and Building Materials, V.19, No.6, pp. 413-422.

Associação Brasileira de Normas Técnicas (ABNT). NBR 5739: Concreto - ensaio de compressão de corpos de prova cilíndricos. Rio de Janeiro, 2007.

Associação Brasileira de Normas Técnicas (ABNT). NBR 6118: Projeto de estruturas de concreto. Rio de Janeiro, 2014.

Aykac, S., Kalkan, I., Aykac, B., Karahan, S., Kayar, S. (2013), “Strengthening and Repair of Reinforced Concrete Beams Using External Steel Plates”, Journal of Structural Engineering, V.139, No.6, pp. 929–939.

Campagnolo J. L; Campos Filho A., Silva Filho, L. C. P. (1994), "Técnicas de ancoragem em vigas de concreto armado reforzadas com chapas de acero coladas", In: 36a. REIBRAC - Reunión Anual do Instituto Brasileiro do Concreto, 1994, Porto Alegre/ RS.

Cánovas M. F. (1998), “Patologia e Terapia do Concreto Aramado”, São Paulo: Editora PINI, 522p.

Cánovas, M. F. (1985), "Refuerzo de elementos estructurales de hormigón armado mediante encolado de bandas de acero con adhesivos epoxídicos", Informes de la Construcción, V.37, No. 373, pp. 27-38.

Helene, P. R. L. (2000) "Manual para reparo, refuerzo e proteção de estruturas de concreto", 2 Ed, São Paulo: Editora PINI, 213 p.

Hussain, M. (1995), "Flexural behavior of pre-cracked reinforced concrete beams strengthened externally by steel plates", ACI Structural Journal, V.92, No. 1, pp. 14-23.

Jumaat, M. Z., Alam A. (2008), Experimental and analytical investigations on the structural behaviour of steel plate and CFRP laminate flexurally strengthened reinforced concrete beams", Journal of Applied Sciences, V.8, pp. 4383-4389.

Melo Júnior, L. O. (1997), "Comportamento ao cisalhamento de vigas em concreto armado reforzadas com chapas de acero coladas lateralmente", Mestrado em Engenharia Civil, Universidade Federal de Pernambuco (UFPE), Recife/PE, 81p.

Narayanamurthy, V., Chen, J. F., Narayanamurthy, J., Cairns, D.J., Oehlers, D.J. (2012) "Plate end debonding in the constant bending moment zone of plated beams", Composites Part B: Engineering, V.43, No. 8, pp. 3361-3373.

Oehlers, D., Moran, J. (1990), "Premature failure of externally plated reinforced concrete beams”, Journal of Structural Engineering, V.116, No. 4, pp. 978-995.

Patiño, A. L. (2005) "Comportamiento mecánico de vigas de hormigón armado reforzadas con bandas encoladas con resinas epoxi", Tesis Ingeniería Civil, Universidad Politécnica de Madrid (UPM), 323p.

Perelles, D. H., Medeiros, M. F., Garcez, M. R. (2013), "Aplicação da análise hierárquica como ferramenta de tomada de decisão para escolha do compósito de refuerzo com polímeros reforçados com fibras", Revista ALCONPAT, V.3, No. 3, pp. 165-180.

Santos, P. M. (2008), "Comparação de refuerzo com chapas de acero e fibras de carbono em vigas de concreto armado submetida à flexión simples", Trabalho de Final de Curso em Engenharia Civil, Universidade Estadual de Feira de Santana (UEFS), Feira de Santana/BA.

Silva Filho L. C. P., Helene P. R. L. (2011), "Análises de estruturas de concreto com problemas de resistência e fissuração", In.: Isaia G. C., Concreto: Ciência e Tecnologia. 1ª Edição. São Paulo: Editora IBRACON, V.2, Cap.32, pp. 1124-1174.

Simões, M. L. F. (2007), "Refuerzo à flexión de vigas de concreto armado por encamisamento parcial", Mestrado em Engenharia Civil, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro/RJ, 162p.

Souza, V. C. M., Ripper, T. (1988), "Patologia, recuperação e refuerzo de estruturas de concreto", São Paulo: Editora PINI, 255 p.

Tisot, G. D. D. (2010), "Refuerzo à flexión de vigas de concreto armado submetidas a carregamento precoce", Trabalho de Conclusão de Curso em Engenharia Civil, Universidade de Passo Fundo (UPF), Passo Fundo/RS.

Published
2016-05-31
How to Cite
Deghenhard, C. C., Teixeira, T., Vargas, A., Vito, M., Piccinini, Â. C., & Do Vale Silva, B. (2016). Experimental analysis of various configurations of metal sheets in the reinforcement of flexion of reinforced concrete beams. Revista ALCONPAT, 6(2), 188 - 199. https://doi.org/10.21041/ra.v6i2.138
Issue
Vol. 6 No. 2 (2016)
Section
Applied Research

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