Effects of intermediate anchors on end anchored carbon fibre reinforced polymer laminate flexurally strengthened reinforced concrete beams

Alam, A. and Jumaat, Mohd Zamin (2009) Effects of intermediate anchors on end anchored carbon fibre reinforced polymer laminate flexurally strengthened reinforced concrete beams. Journal of Applied Sciences, 9 (1). pp. 142-148. ISSN 18125654, DOI https://doi.org/10.3923/jas.2009.142.148.

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This research presents the results of an experimental study to look into the effects of intermediate anchors on end anchored CFRP laminate strengthened beams. Three beams of 125�250�2300 mm in dimensions were cast. Out of these, one beam was left un-strengthened and acts as the control beam and another two beams were strengthened with CFRP laminates. Both strengthened beams were end anchored to prevent premature end peeling. From the strengthened beams, one beam was intermediate anchored in the shear span to prevent premature shear failure. The anchorage lengths provided by the end and intermediate anchors were of 200 and 40 mm, respectively. The results showed that the intermediate anchors in shear span zone prevented premature shear failure. Result also showed that the strengthened beams with intermediate anchors had significant effects on failure loads, failure modes, strain characteristics, deflections and cracking patterns over the end anchored strengthened beam.

Item Type: Article
Additional Information: Cited By (since 1996): 2 Export Date: 6 January 2013 Source: Scopus Language of Original Document: English Correspondence Address: Alam, A.; Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kaula Lumpur, Malaysia References: Bencardino, F., Spadea, G., Swamy, R.N., The problem of shear in RC beams strengthened with CFRP laminates (2007) Construct. Build. Mater, 21, pp. 1997-2006; El-Mihilmy, M.T., Tedesco, J.W., Prediction of anchorage failure for reinforced concrete beams strengthened with fiber-reinforced polymer plates (2001) ACI Struct. J, 98, pp. 301-314; Gerco, F., Lonetri, P., Blasi, P.N., An analytical investigation of debonding problems in beams strengthened using composite plates (2007) Eng. Fract. Mech, 74, pp. 346-372; Kim, J.J., Lim, Y.M., Won, J., Park, H., Lee, K.M., Shear capacity and failure behavior of DFRCC repaired RC beams at tensile region (2007) Eng. Struct, 29, pp. 121-131; Smith, S.T., Teng, J.G., FRP-strengthened RC beams. I: Review of debonding strength models (2002) Eng. Struct, 24, pp. 385-395; Xiong, G.J., Jiang, X., Liu, J.W., Chen, L., A way for preventing tension delamination of concrete cover in midspan of FRP strengthened beams (2007) Construct. Build. Mater, 21, pp. 402-408; Yao, J., Teng, J.G., Plate end debonding in FRP-plated RC beams-I (2007) Experiments. Eng. Struct, 29, pp. 2457-2471
Uncontrolled Keywords: L shape anchors, Plate bonding method, Premature shear failure.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 21 May 2013 01:45
Last Modified: 05 Feb 2020 04:26
URI: http://eprints.um.edu.my/id/eprint/6084

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