FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)

Ceren Gökcen; Emin Hökelekli; Emre Ercan; Mehmet Erkek

FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)

Abstract

The reason for the extensive use of fiber reinforced polymers (FRP) as a reinforcement material in construction elements is due to its advantageous mechanical properties. The mechanisms underlying the failure of FRP reinforced concrete beams is still a phenomenon in question for researchers. The best means of determining the mechanical behavior of a construction element is usually by laboratory testing. But this process takes a lot of time and is costly. Only a limited number of specimens with certain sizes can be tested and decent experimental equipment and samples may not be easily available. The aim of this study is to develop a finite element model for simulating the behavior of FRP strengthened reinforced concrete (RC) beams reducing the need for experimentation. For this reason, in this study, test results carried out by the Swiss Federal Material Testing and Research Laboratory on FRP strengthened RC beams [7] were compared with results obtained by computer simulation using finite element method. The regions of damage occurrence obtained from the analysis were evaluated and the comparison of the failure load of the simulation with that of the test was made with the load-displacement graphs. The failure loads obtained by the simulations were in good agreement with the test data. Therefore finite element simulations can be used as a tool for predicting the mechanical behavior of FRP strengthened RC beams.

Keywords

References

[1] Arduini, M., & Nanni, A., Parametric study of beams with externally bonded FRP reinforcement, ACI Structural Journal, 94(5), 1997, 493-501.
[2] Belarbia, A., Acun, B., FRP Systems in Shear Strengthening of Reinforced Concrete Structures, 11th International Conference on Modern Building Materials, Structures and Techniques, Procedia Engineering 57, 2013, 2 – 8.
[3] Bizindavyi, L., & Neale, K. W, Transfer lengths and bond strengths for composites bonded to concrete, Journal of Composites for Construction, 3(4), 1999, 153-160.
[4] Chajes, M. J., & Finch Jr., W. W., Bond and force transfer of composite material plates bonded to concrete, ACI Structural Journal, 93(2), 1996, 208-217.
[5] M. Chellapandian, M., Suriya Prakash, S., Rajagopal, A., Analytical and Finite Element Studies on Hybrid FRP Strengthened RC Column Elements under Axial and Eccentric Compression, Composite Structures, 2017, 09-109
[6] Colombi, P., Fava, G., Poggi, C., End debonding of CFRP wraps and strips for the strengthening of concrete structures, Composite Structures 111, 2014, 510-521.
[7] Empa report no. 163712, Nachtragliche Verstarkung von Stahlbetonbalken mit CFK- Lamellen/ Statische Belastungsversuche, 1996.
[8] Grace, N. F., Sayed, G. A., Soliman, A. K., & Saleh, K. R., Strengthening reinforced concrete beams using fiber reinforced polymer (FRP) laminates, ACI Structural Journal, 96(5), 1999, 865-875.

[9] Hibbitt, Karlsson, Sorensen, & Inc. ABAQUS Theory manual, User manual, Example Manual. Version 6.8. Providence, RI. 2000.
[10] Kishi, N., Zhang, G., & Mikami, H., Numerical cracking and debonding analysis of RC beams reinforced with FRP sheets, Journal of Composites for Construction, 9(6), 2005, 507-514.
[11] Leung, C. K., Delamination failure in concrete beams retrofitted with a bonded plate, Journal of Materials in Civil Engineering, 13(2), 2001, 106-113.
[12] Lu, X. Z., Teng, J. G., Ye, L. P. and Jiang, J. J. Bond-slip models for FRP sheets/plates bonded to concrete, Engineering Structures. 27, 2005, 920-937
[13] Maalej, M., & Bian, Y., Interfacial shear stress concentration in FRP-strengthened beams, Composite Structures, 54(4), 2001, 417-426.
[14] Malek, A. M., Saadatmanesh, H., & Ehsani, M. R., Prediction of failure load of R/C beams strenghened with FRP plate due to stress concentration at the plate end, ACI Structural Journal, 95(1), 1998, 142-152.
[15] Mukhopadhyaka, P., & Swamy, N., Interface shear stress: a new design criterion for plate debonding, Journal of Composites for Construction, 5(1), 2001, 35-43.
[16] Niu, H., & Wu, Z, Numerical analysis of debonding mechanisms in FRP-strengthened RC beams, Computer-Aided Civil and Infrastructure Engineering, 20(5), 2005, 354-468.
[17] Ngujen, D. M., Chan, T. K., & Cheong, H. K., Brittle failure and bond development length of CFRP-concrete beams, Journal of Composite for Construction, 5(1), 2001, 12-17.
[18] Gunes, O., A fracture-based approach to understanding debonding in FRP bonded structural members. PhD Thesis, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 2004.
[19] Pan, J., Wu, Y., Analytical modeling of bond behavior between FRP plate and concrete, Composites: Part B 61, 2014, 17-25.
[20] Ross, A., Jerome, D. M., Tedesco, J. W., & Hughes, M. L, Strengthening of reinforced concrete beams with externally bonded composite laminates, ACI Structural Journal, 96(2), 1999, 212-220.
[21] Sebastian, W. M., Significance of midspan debonding failure in FRP-plated concrete beams, Journal of Structural Engineering, 127(7), 2001, 792-798.
[22] Taljsten, B., Strengthening of beams by plate bonding, Journal of Materials in Civil Engineering, 9(4), 1997, 206-212.
[23] Toutanji, H., Ueno, S., Vuddandam, R., Prediction of the interfacial shear stress of externally bonded FRP to concrete substrate using critical stress state criterion, Composite Structures 95, 2013, 375-380.
[24] Triantafillou, T. C., & Deskovic, N., Prestressed FRP sheets as external reinforcement of wood members, Journal of Structural Engineering, 118(5), 1992, pp. 1270-1284.
[25] Triantafillou, T., & Plevris, N., Post-strengthening of reinforced concrete beams with epoxy-bonded fiber composite materials, Nevada, USA, Advanced Composite Materials in Civil Engineering Structures, Proceedings of Specialty Conference, ASCE Materials Engineering Division, 1991, pp. 245-256
[26] Wang, J., Cohesive zone model of FRP-interface debonding under mixed-mode loading, Elsevier Science Ltd., 2007, 6551-6568.
[27] Yang, Z. J., Chen, J. F., & Proverbs, D., Finite element modeling of concrete cover separation failure in FRP plated RC beams, Construction and Building Materials, 17(1), 2003, 313.
[27] Ye, J., Yang, J., An investigation on the stress transfer in concrete beams bonded with FRP plates, International institute for FRP in Construction,2005
[28] Yoshizawa, H., Myojo, T., Okoshi, M., Mizukoshi, M., & Kliger, H. S., Effect of sheet bonding condition on concrete members having externally bonded carbon fiber sheet, Washington D.C., Materials for the New Millennium Proceedings of the Fourth Materials Engineering Conference, 1996, pp. 1608-1616.

Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Authors

Ceren Gökcen This is me
0000-0003-0912-8177
Türkiye

Emin Hökelekli This is me
0000-0003-0548-5214
Türkiye

Emre Ercan This is me
0000-0001-9325-8534
Türkiye

Mehmet Erkek This is me
0000-0001-6682-7930
Türkiye

Publication Date

June 1, 2021

Submission Date

November 11, 2019

Acceptance Date

April 6, 2020

Published in Issue

Year 2020 Volume: 38 Number: 2

IZ

https://izlik.org/JA65ZM89BC

Cite

RIS / Bibtex

APA

Gökcen, C., Hökelekli, E., Ercan, E., & Erkek, M. (2021). FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP). Sigma Journal of Engineering and Natural Sciences, 38(2), 687-702. https://izlik.org/JA65ZM89BC

AMA

1.Gökcen C, Hökelekli E, Ercan E, Erkek M. FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP). SIGMA. 2021;38(2):687-702. https://izlik.org/JA65ZM89BC

Chicago

Gökcen, Ceren, Emin Hökelekli, Emre Ercan, and Mehmet Erkek. 2021. “FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)”. Sigma Journal of Engineering and Natural Sciences 38 (2): 687-702. https://izlik.org/JA65ZM89BC.

EndNote

Gökcen C, Hökelekli E, Ercan E, Erkek M (June 1, 2021) FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP). Sigma Journal of Engineering and Natural Sciences 38 2 687–702.

IEEE

[1]C. Gökcen, E. Hökelekli, E. Ercan, and M. Erkek, “FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)”, SIGMA, vol. 38, no. 2, pp. 687–702, June 2021, [Online]. Available: https://izlik.org/JA65ZM89BC

ISNAD

Gökcen, Ceren - Hökelekli, Emin - Ercan, Emre - Erkek, Mehmet. “FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)”. Sigma Journal of Engineering and Natural Sciences 38/2 (June 1, 2021): 687-702. https://izlik.org/JA65ZM89BC.

JAMA

1.Gökcen C, Hökelekli E, Ercan E, Erkek M. FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP). SIGMA. 2021;38:687–702.

MLA

Gökcen, Ceren, et al. “FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP)”. Sigma Journal of Engineering and Natural Sciences, vol. 38, no. 2, June 2021, pp. 687-02, https://izlik.org/JA65ZM89BC.

Vancouver

1.Ceren Gökcen, Emin Hökelekli, Emre Ercan, Mehmet Erkek. FINITE ELEMENT ANALYSIS OF THE MECHANICAL BEHAVIOR OF REINFORCED CONCRETE (RC) BEAMS STRENGTHENED BY FIBER REINFORCED POLYMERS (FRP). SIGMA [Internet]. 2021 Jun. 1;38(2):687-702. Available from: https://izlik.org/JA65ZM89BC