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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.
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.
Deterioration of FRP-to-Concrete Bond under Failure Loading
Harries, Kent A. (author) / Aidoo, John (author) / Zorn, Andrew (author) / Quattlebaum, Joshua (author)
Advances in Structural Engineering ; 9 ; 779-789
2006-12-01
11 pages
Article (Journal)
Electronic Resource
English
Deterioration of FRP-to-Concrete Bond Under Failure Loading
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