Deflection Prediction of FRP-Strengthened Reinforced Concrete Beams

Abstract:

Article Preview

Bonding fiber reinforced polymer (FRP) laminates to the tension face of RC members has been proven to be an effective method to improve the flexural strength. However, structural members are not only needed to have adequate strength, but also to have adequate performance of deformation at service load levels. To evaluate the deflection of externally FRP-strengthened RC beams, a total of 18 RC beams, including 16 beams strengthened with CFRP laminate under different preload levels and 2 control beams, were tested. Based on the assumption that the section of the beam behaves a tri-linear moment-curvature response characterized by pre-crack stage, post-crack stage and failure stage and the test results, this paper presents a modified model to evaluate the deflection of CFRP-strengthened RC beams. The present modified model was verified by the similar test results, and shows a good agreement with the test results.

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li

Pages:

621-624

DOI:

10.4028/www.scientific.net/AMR.243-249.621

Citation:

G. B. Li and Y. G. Guo, "Deflection Prediction of FRP-Strengthened Reinforced Concrete Beams", Advanced Materials Research, Vols. 243-249, pp. 621-624, 2011

Online since:

May 2011

Export:

Price:

$35.00

[1] ACI -Committee 440, Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures (ACI 440. 2R-02). 2002, ACI: Farmington Hills. Mich. p.45.

DOI: 10.1061/40753(171)159

[2] El-Mihilmy, M.T. and J.W. Tedesco, ACI Structural Journal, 2000. 97(5): pp.679-688.

[3] Charkas, H., H.A. Rasheed, and H. Melhem, ACI Structural Journal, 2003. 100(4): pp.529-539.

[4] Faruqi, M., C.C. Wu, and F. Benson, Magazine Of Concrete Research, 2003. 55(6): pp.549-557.

[5] SAID, H., Journal of composite for construction, 2010. 14(2): pp.244-248.

[6] ACI-Committee 318-02, Building Code Requirements for Structural Concrete (ACI 318-02) and Commentary (ACI 318R-02). 2002, American Concrete Institute: Farmington Hills, Mich.

DOI: 10.1061/(asce)1076-0431(1996)2:3(120.3)

[7] Smith, S.T. and J.G. Teng, Engineering Structures, 2002. 24(4): pp.385-395.

[8] Teng, J.G., S.T. Smith, J. Yao, and J.F. Chen, Construction and Building Materials, 2003. 17(6-7): pp.447-462.

[9] Sebastian W. M., ASCE Journal Of Structural Engineering, 2001. 127(7): pp.792-798.

[10] Büyükoztürk, O., O. Gunes, and E. Karaca. Characterization and modeling of debonding in RC beams strengthened with FRP composites. in 15th ASCE Engineering Mechanics Conference. 2002. Columbia University, New York, NY.

[11] Büyükoztürk, O., O. Gunes, and E. Karaca, Construction and Building Materials, 2004. 18(1): pp.9-19.

[12] Oh H.S. and Sim J., Composite Interfaces, 2004. 11(1): pp.25-42.

[13] Shin, Y. -S. and C. Lee, ACI Structural Journal, 2003. 100(2): pp.231-39.

[14] Arduini, M. and A. Nanni, Journal of composite for construction, 1997. 1(2): pp.63-70.

In order to see related information, you need to Login.