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Type: Conference paper
Title: Dilation behavior of FRP-confined concrete
Author: Lim, J.
Ozbakkaloglu, T.
Citation: FRPRCS-ll: 11th International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures, 2013 / Barros, J., Sena-Cruz, J. (ed./s), pp.1-10
Publisher: Universidade do Minho
Publisher Place: Portugal
Issue Date: 2013
ISBN: 9789728692841
Conference Name: International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures (FRPRCS) (26 Jun 2013 - 28 Jun 2013 : Portugal)
Statement of
J. C. Lim, T. Ozbakkaloglu
Abstract: Two large experimental test databases that consist of 976 axial compression tests results of FRP-confined concrete and 346 triaxial test results of actively confined concrete specimens were used to investigate and quantify the factors that influence the dilation behavior of confined concrete. A generic model, developed on the basis of the databases, to describe the lateral strain-to-axial strain relationship of both passively and actively confined concretes is presented. The model accurately predicts the shape of the lateral stain-to-axial strain curves and critical coordinates along the curves, including the ultimate strains of FRP-confined concrete, and the peak and residual strains of actively confined concrete. The trend of the lateral strain-to-axial strain relationship of confined concrete is shown to be a function of the concrete strength, confining material and confining pressure. Assessment of the proposed model with the experimental databases showed that the model predictions are in good agreement with the test results.
Keywords: Concrete; Confinement; Column; Compression tests; Triaxial tests
Rights: © UM, Guimarães, 2013
RMID: 0020137014
Appears in Collections:Civil and Environmental Engineering publications

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