Failure Analysis of FRP-Strengthened RC Beams
Publication: Journal of Composites for Construction
Volume 12, Issue 1
Abstract
Fiber-reinforced polymer (FRP) application is a very effective way to repair and strengthen structures that have become structurally inefficient over their life span. This paper investigates the applicability of existing models for the prediction of debonding failure in RC beams externally strengthened with FRP. It is very important to predict the limit at which FRP debonds from the beam in order to arrest premature failures. The existing models lack the thoroughness of bond predictability. This is mainly due to the development models on the basis of small amount of tested data. Hence, there is a need to compare the existing work to an extensive database of strengthened beams. Existing experimental work was collected from literature to create a database of 163 beams tested in three point and four point bending tests. Various models are applied to this database and behavior of each model is analyzed using statistical parameters and degree of uncertainty in prediction.
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Information
Published In
Journal of Composites for Construction
Volume 12 • Issue 1 • February 2008
Pages: 2 - 14
Copyright
© 2008 ASCE.
History
Received: May 25, 2006
Accepted: Nov 2, 2006
Published online: Feb 1, 2008
Published in print: Feb 2008
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