Evaluation of Empirical Fatigue Prediction Models for FRP-Strengthened RC Beams

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Title: Evaluation of Empirical Fatigue Prediction Models for FRP-Strengthened RC Beams

Author(s): K. Gordon and L. Cheng

Publication: Special Publication

Volume: 275

Issue:

Appears on pages(s): 1-14

Keywords: Fatigue; Fiber Reinforced Polymer (FRP); Reinforced Concrete; S-N Curve

Date: 3/1/2011

Abstract:
This paper presents the results evaluating the empirical fatigue-life relation-ships currently available for predicting the fatigue life of reinforced concrete beams strengthened with fiber reinforced polymers. Derived from individual studies, each relationship is used to generate predictions for sets of test data that are reported in the open literature. The predictions are then analyzed for accuracy and investigated for factors that may lead to improved fatigue-life models. Analyses of data using currently available models indicate that much improvement is needed. The improvements should not only address individual factors that can affect fatigue life, but should also result in accurate predictions across multiple sets of data.