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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Numerical Simulation of Prestressed CFRP Plate Strengthened Steel-Concrete Composite Girders
verfasst von : Pouya Zangeneh, Hamid Y. Omran, Raafat El-Hacha
Erschienen in: Advances in FRP Composites in Civil Engineering
Verlag: Springer Berlin Heidelberg
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This paper presents the results of Finite Element (FE) modeling of flexural behavior of steel-concrete composite girders strengthened with prestressed Carbon Fiber Reinforced Polymer (CFRP) plate. To the best knowledge of the authors, this is the first numerical modeling of such application with prestress available in the literature The level of prestressing that is used to validate the model is 12% of the ultimate tensile strength of the CFRP plate and it is based on the results of an experimental study conducted at University of Calgary on the same large-scale beam tested in bending under monotonic static loading. Comparison shows a very good agreement between the numerical and the experimental results. After validation of the model, a parametric study using different prestressing levels is conducted and the effects of increasing the prestress level on ductility index, yield and ultimate loads are presented.