期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 24, 期 12, 页码 2507-2516出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2010.06.006
关键词
FRP; Concrete beam; Debonding; Multiple cracks; Analytical model
For a FRP strengthened concrete beam, debonding is often initiated by the opening of a flexural or shear/flexural crack along the concrete beam. This debonding failure is often studied with the pull-off test. However, experimental results indicate that debonding on a concrete beam occurs at a significantly higher force than that in the pull-off tests, which can be ascribed to the presence of multiple cracks along the beam span. In the present investigation, an analytical model that accounts for the opening of shear/flexural cracks along the beam is developed. The proposed analytical model has also been verified with the experimental results. (C) 2010 Elsevier Ltd. All rights reserved.
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