CUED Publications database

Differences between FRP bond behavior in cracked and uncracked regions

Taher Khorramabadi, M and Burgoyne, CJ (2011) Differences between FRP bond behavior in cracked and uncracked regions. American Concrete Institute, ACI Special Publication, 1. pp. 335-351. ISSN 0193-2527

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Abstract

Based on an analysis of the experimental results of a proposed bond test method, significant differences are shown to exist between the local FRP bond stress-slip relationships in the uncracked anchorage regions and in the regions between cracks. The proposed method simulates the bond behavior between the flexural cracks and anchorage regions of a flexurally FRP-strengthened RC beam. The boundary conditions, including the presence of cracks and steel, are shown to have significant effects on the local bond stress-slip models. The results showed that, at the same force, the bond stresses in the regions between cracks were lower than in regions outside the cracks, so the debonding formed in the anchorage regions. The local bond stress-slip models in the anchorage regions can be obtained from the conventional bond test methods but these do not mimic the conditions between the cracks.

Item Type: Article
Uncontrolled Keywords: Anchorage region Average bond stress-slip model Bond behavior Cracked region Local bond stress-slip model
Subjects: UNSPECIFIED
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:36
Last Modified: 29 Nov 2014 19:03
DOI: