| Concrete columns, confined by Fibre Reinforced Polymer (FRP) sheets and lateral steel reinforcement, were analyzed using finite element methods. A computer program was written for this purpose. Twelve columns with different lateral reinforcement, tested at the University of Toronto, were selected and analyzed to study the effect of lateral confinement. Constitutive models for concrete are based on Modified Compression Field Theory. Equations for Pre- and Post-peak curves of confined concrete, strength enhancement and variable Poisson's ratio were selected from the conclusions of parametric study done earlier for steel confined columns. Relation for maximum value of Poisson's ratio and confinement modulus was proposed. Results achieved from finite element analysis were also compared with three existing models for FRP-confined columns. In general, good agreement with experimental results was found. |
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