Analysis of reinforced concrete with external composite strengthening

A finite element model for the analysis of reinforced concrete with externa l composite materials strengthening is presented in this paper. The model i s based on a concrete material model, external unidirectional composites, t he Ahmad Shell element and geometric and material non-linearities. The firs t-order shear-deformation theory is used, in order to describe the deformat ion of the shell under the total lagrangian formulation. An example of a RC plate without and with external FRP reinforcement is presented and discuss ed. (C) 2000 Elsevier Science Ltd. All rights reserved.