Research Article

INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS

Volume: 35 Number: 1 March 1, 2017
  • Kadir Şengün
  • Güray Arslan

INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS

Abstract

Experimental investigations were conducted to study the behavior of reinforced concrete (RC) and steel fiber reinforced concrete (SFRC) beams retrofitted and strengthened with carbon fiber reinforced polymer (CFRP). Four beams, each of which has a longitudinal reinforcement ratio of 1.34% and a shear span-to-effective depth ratio of 2.5, were tested under mid-span concentrated loads. The specimens consisted of a RC beam, a SFRC beam with 2.0% volume fraction of steel fibers and their companion beams that were loaded up to a certain damage level and then retrofitted with CFRP. The retrofitted beams were intentionally designed to be incompatible with the minimum requirements given by the code for FRP design. However, test results show that the retrofitting with CFRP increases the ductility of RC beams significantly even under such incompatibility.

Keywords

References

  1. [1] ACI Committee 318 (2008). Building Code Requirements for Structural Concrete, ACI, Farmington Hills, Mich.
  2. [2] ACI Committee 318 (2014). Building code requirements for structural concrete (ACI 318-14). Farmington Hills, MI, USA.
  3. [3] ACI Committee 440 (2008). Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures (ACI 440.2R-08). Farmington Hills, MI, USA.
  4. [4] ACI Committee 544 (1996). State-of-the-art report on fiber reinforced concrete (ACI 544.1R-96) (Reapproved 2009). Farmington Hills, MI, USA.
  5. [5] Alzate A., Arteaga A., Diego A. and Perera R. (2009), Shear strengthening of reinforced concrete beams using fibre reinforced polymers (FRP) European Journal of Environmental and Civil Engineering, 13(9), 1051-1060.
  6. [6] Arslan G (2014). Shear strength of steel fiber reinforced concrete (SFRC) slender beams. KSCE Journal of Civil Engineering 18(2): 587-594.
  7. [7] Arslan G, Keskin RSO, and Ulusoy S (2016) An experimental study on the shear strength of SFRC beams without stirrups. Construction and Building Materials (in review).
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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Kadir Şengün This is me
Türkiye

Güray Arslan This is me
Türkiye

Publication Date

March 1, 2017

Submission Date

July 24, 2016

Acceptance Date

September 15, 2016

Published in Issue

Year 2017 Volume: 35 Number: 1

APA
Şengün, K., & Arslan, G. (2017). INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS. Sigma Journal of Engineering and Natural Sciences, 35(1), 77-85. https://izlik.org/JA37LN46ZK
AMA
1.Şengün K, Arslan G. INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS. SIGMA. 2017;35(1):77-85. https://izlik.org/JA37LN46ZK
Chicago
Şengün, Kadir, and Güray Arslan. 2017. “INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS”. Sigma Journal of Engineering and Natural Sciences 35 (1): 77-85. https://izlik.org/JA37LN46ZK.
EndNote
Şengün K, Arslan G (March 1, 2017) INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS. Sigma Journal of Engineering and Natural Sciences 35 1 77–85.
IEEE
[1]K. Şengün and G. Arslan, “INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS”, SIGMA, vol. 35, no. 1, pp. 77–85, Mar. 2017, [Online]. Available: https://izlik.org/JA37LN46ZK
ISNAD
Şengün, Kadir - Arslan, Güray. “INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS”. Sigma Journal of Engineering and Natural Sciences 35/1 (March 1, 2017): 77-85. https://izlik.org/JA37LN46ZK.
JAMA
1.Şengün K, Arslan G. INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS. SIGMA. 2017;35:77–85.
MLA
Şengün, Kadir, and Güray Arslan. “INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS”. Sigma Journal of Engineering and Natural Sciences, vol. 35, no. 1, Mar. 2017, pp. 77-85, https://izlik.org/JA37LN46ZK.
Vancouver
1.Kadir Şengün, Güray Arslan. INFLUENCE OF CFRP ON THE STRENGTH OF RETROFITTED RC BEAMS WITHOUT STIRRUPS. SIGMA [Internet]. 2017 Mar. 1;35(1):77-85. Available from: https://izlik.org/JA37LN46ZK

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