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Deterioration of FRP-to-Concrete Bond under Failure Loading

Deterioration of FRP-to-Concrete Bond under Failure Loading Characteristics of FRP-to-concrete bond are observed to deteriorate under cyclic loads. Deterioration has been observed under load conditions which result in a stress range in the bonded FRP of only 4% of the material capacity. Current design recommendations and “accepted practice” often neglect this detrimental effect. The clear effects of bond deterioration under fatigue loading are demonstrated for moderate-scale laboratory specimens and in full-scale specimens recovered from a forty-year old interstate highway bridge. The results suggest additional limit states that must be considered when even relatively small fatigue loads are present. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

Deterioration of FRP-to-Concrete Bond under Failure Loading

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Publisher
SAGE
Copyright
© 2006 SAGE Publications
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1260/136943306779369446
Publisher site
See Article on Publisher Site

Abstract

Characteristics of FRP-to-concrete bond are observed to deteriorate under cyclic loads. Deterioration has been observed under load conditions which result in a stress range in the bonded FRP of only 4% of the material capacity. Current design recommendations and “accepted practice” often neglect this detrimental effect. The clear effects of bond deterioration under fatigue loading are demonstrated for moderate-scale laboratory specimens and in full-scale specimens recovered from a forty-year old interstate highway bridge. The results suggest additional limit states that must be considered when even relatively small fatigue loads are present.

Journal

Advances in Structural EngineeringSAGE

Published: Dec 1, 2006

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