Structural Behavior of Reinforced Concrete Beams Strengthened with Carbon Fiber Reinforcement Polymer Plate

Abstract:

This paper presents the study to find retrofit effect in case of Near-Surface-Mounted Retrofit (NSMR) using Carbon Fiber Reinforcement Polymer (CFRP) plate targeting reinforcement concrete (RC) beam by comparing the previous Externally Bonded Retrofit (EBR) method through experimental analytical works. Three RC beam specimens were made and two of them were retrofitted with CFRP plate by using EBR and NSMR. Also Finite Element (FE) analysis was performed in order to simulate the structural behavior of the beams by considering the bond properties between concrete and CFRP. From the study, it was found that the beam retrofitted with EBR hada reduction of bond capacity in the joint while the beam retrofitted with NSMR had perfect bond capacity.

• Periodical: Applied Mechanics and Materials (Volume 302)
• Pages: 338-342
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.302.338
• Online since: February 2013
• Authors: Soo Yeon Seo
• Keywords: Bond Capacity, Carbon Fiber Reinforcement Polymer, Externally Bonded Retrofit, Finite Element Analysis (FEA), Near-Surface-Mounted Retrofit, Reinforced Concrete (RC) Beam

References

[1] S. Seo, L. Feo and D. Hui, Bond Characteristic of FRP Embedded in Concrete for Retrofit of Reinforced concrete Structure, proceeding of ICCE-19 (2011).

[2] De Lorenzis, L, Rizzo A, La Tegola A. A modified pull-out test for bond of near surface mounted FRP rods in concrete. Composites Part B: Engineering 33 (2002) 589-603.

DOI: 10.1016/s1359-8368(02)00052-5

[3] Sharma SK, Mohamed Ali MS, Goldar D, Sikdar PK. Plate-concrete interfacial bond strength of FRP and metallic plated concrete specimens. , Composites Part B: Engineering 37 (2006) 54-63.

DOI: 10.1016/j.compositesb.2005.05.011

[4] J Yao, JG Tang, JF Chen. Experimental study on FRP-to-concrete bonded joints. Composites Part B: Engineering 36 (2005) 99-113.

DOI: 10.1016/j.compositesb.2004.06.001

[5] Nami A. FRP reinforcement for bridge structures, Proceedings of Structural Engineering Conference Beams. Journal of Composites for Construction (ASCE) 5 (2000) 12-7.

[6] De Lorenzis, L, Nanni A, La Tegola A. Flexural and shear strengthening of reinforced concrete structures with near surface-mounted FRP rods. Proceeding of the 3rd International Conference on Advanced Composite Materials in Bridges and Structures (2000).

DOI: 10.1142/9789812704863_0070

[7] R EI-Hacha, SH Rizkalla. Near surface-mounted fiber-reinforced polyimer reinforcements for flexural strengthening of concrete structures. ACI Structural Journal 101 (2004) 717-26.

DOI: 10.14359/13394