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Structural Engineering and Mechanics Volume 12, Number 3, September 2001 , pages 231-248 DOI: https://doi.org/10.12989/sem.2001.12.3.231 |
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Compression field modeling of confined concrete |
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E.Montoya, F.J. Vecchio and S.A. Sheikh(Canada)
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| Abstract | ||
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The three-dimensional behavior of confined concrete was investigated, including strength enhancement due to triaxial compressive stresses, lateral expansion, compression softening, cover spalling and post-peak ductility. A finite element program based on a nonlinear elasticity methodology was employed to evaluate the ability to model triaxial behavior of reinforced concrete (RC) by combining constitutive models proposed by several researchers. The capability of compression field based models to reproduce the softening behavior of lightly cracked confined concrete was also investigated. Data from tested specimens were used to evaluate the validity of the formulations. Good agreement with the experimental results was obtained. | ||
| Key Words | ||
| nonlinear; finite element; analysis; reinforced concrete; confinement; lateral expansion; columns. | ||
| Address | ||
| E. Montoya, F.J. Vecchio and S.A. Sheikh, Department of Civil Engineering, University of Toronto, Toronto, Canada | ||