Numerical evaluation of the behaviour of steel- and FRP-confined concrete columns using compression field modelling
✍ Scribed by E. Montoya; F.J. Vecchio; S.A. Sheikh
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 393 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0141-0296
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✦ Synopsis
New constitutive models for confined concrete were formulated and implemented into in-house nonlinear finite element programs at the University of Toronto. A program for analysis of axisymmetric solids was specifically developed for this work. The confinement models proposed follow a compression field modelling approach that combines nonlinear elasticity and plasticity-type modelling. In this paper, the formulations are corroborated by examining the behaviour of reinforced concrete columns confined with fibre reinforced polymers (FRP), steel, or a combination of both. The analytical responses agree well with the experimental results, showing the capabilities of the models to reasonably model pre-and post-peak behaviour, and strength enhancement.