Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77538
Title: Effect of load distribution on IC debonding in FRP-strengthened RC beams : full-scale experiments
Authors: Fu, B 
Teng, JG 
Chen, GM
Chen, JF
Guo, YC
Keywords: Arching action
Concrete beam
Debonding
Flexural strengthening
FRP
Load distribution
Issue Date: 2018
Publisher: Elsevier
Source: Composite structures, 2018, v. 188, p. 483-496 How to cite?
Journal: Composite structures 
Abstract: This paper presents an experimental study into the effect of load distribution on intermediate crack (IC) debonding in FRP-strengthened RC beams, an issue which has received very limited attention so far. Five large-scale FRP-plated RC beams were tested in two series to investigate the effects of shear span and load uniformity on IC debonding respectively. The tests indicated that increasing the load uniformity and shortening the shear span both had a beneficial effect on the maximum moment in the beam (i.e., mid-span moment) at IC debonding failure, and they led to an increase in the mid-span moment by up to 18.5%. The test results were next used to assess the accuracy of two existing IC debonding strength models which are applicable to different load distributions. The assessment results show that one of the approaches is rather conservative while the other approach significantly over-predicts the effect of load distribution.
URI: http://hdl.handle.net/10397/77538
ISSN: 0263-8223
EISSN: 1879-1085
DOI: 10.1016/j.compstruct.2018.01.026
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