Numerical Modelling of Concrete Beams Reinforced with Pre-Stressed CFRP

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In this paper, a numerical simulation is presented on the behavior of concrete beams, reinforced with pre-stressed CFRP. The numerical results are compared to experimental results. Non-linear material behaviour is considered, namely: the inelastic compressive concrete behaviour, the elasto-plastic behaviour of steel reinforced bars, the bond-slip relationship between the concrete and the internal steel reinforced bars, the mode-II fracture interface between the concrete and the pre-stressed CFRP and concrete cracking. Cracking in concrete is modelled according to a discrete strong discontinuity approach, in which the discontinuities are embedded within the finite elements. A sequentially-linear approach is adopted in order to avoid non-convergence problems. The present analysis aims at trying to better understand the failure mechanisms found in the experimental tests; these mechanisms will be discussed in a final section of the paper.

Info:

Periodical:

Key Engineering Materials (Volumes 348-349)

Edited by:

J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel

Pages:

685-688

Citation:

J. Alfaiate and T. Domingues, "Numerical Modelling of Concrete Beams Reinforced with Pre-Stressed CFRP ", Key Engineering Materials, Vols. 348-349, pp. 685-688, 2007

Online since:

September 2007

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$38.00

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DOI: https://doi.org/10.1016/s0013-7944(02)00152-2