Strengthening of reinforced concrete corbels with GFRP overlays : Science and Engineering of Composite Materials

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Science and Engineering of Composite Materials

Editor-in-Chief: Hoa, Suong V.

Editorial Board Member: Rand, Omri / Hamada, Hiroyuki / Brandt, Andrzej M. / Ehrenstein, Gottfried Wilhelm / Hui, David / Lee, L. James / Medraj, Mamoun / Nakai, Asami / Nicolais, Luigi / Seferis, James C. / Tan, Kiang Hwee / Ton-That, Minh Tan / Xiao, Xinran / Zako, Masaru / Zhong, W.H. Katie


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Strengthening of reinforced concrete corbels with GFRP overlays

1Department of Civil Engineering, Kocaeli University, Kocaeli 41040, Turkey

Corresponding author

Citation Information: Science and Engineering of Composite Materials. Volume 18, Issue 1-2, Pages 69–77, ISSN (Online) 2191-0359, ISSN (Print) 0792-1233, DOI: 10.1515/secm.2011.009, June 2011

Publication History

Published Online:
2011-06-10

Abstract

The strength and post-peak performance of reinforced concrete corbels, strengthened with epoxy bonded glass fiber reinforced polymer (GFRP) overlays, were experimentally investigated. The test variables were the corbel shear span to depth ratio, corbel main reinforcement ratio, and the number and orientation of the GFRP fibers. In total, 24 normal strength concrete, one-third scale, corbel specimens, without hoop reinforcement, were tested to failure under quasi-static gravity loading. Test results revealed that GFRP overlays can easily be used for the enhancement of corbel load bearing capacity, depending on the fiber orientation. The main reinforcement ratio and the number of GFRP plies were found to be the two main variables affecting the level of strength gain in the corbel specimens.

Keywords: corbel; glass fiber reinforced polymer; normal strength concrete; reinforced concrete, strengthening

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