  In this research, a new analytical model is developed to analyze structural
members strengthened with FRP systems and subjected to impact loading
conditions. ABAQUS based finite element code was used to develop the proposed
model. The model was validated against nine beams built and tested with various
configurations and loading conditions. Three sets of beams were prepared and
tested under quasistatic and impact loadings by applying various impact height
and Dynamic Explicit loading conditions. The first set consisted of two beams,
where one of the beams was reinforced with steel bars and the other was
externally reinforced with GFRP sheet. The second set consisted of six beams,
with five of the beams were reinforced with steel bars and one of them wrapped
by GFRP sheet. The last set was tested to validate the response of concrete
beams reinforced by FRP bar. In addition, beams were reinforced with glass and
carbon fiber composite bars tested under Quasi-Static and Impact loading
conditions. The impact load was simulated by the concept of a drop of a solid
hammer from various heights. The numerical results showed that the developed
model can be an effective tool to predict the performance of retrofitted beams
under dynamic loading condition. Furthermore, the model showed that FRP
retrofitting of RC beams subjected to repetitive impact loads can effectively
improve their dynamic performance and can slow the progress of damage.
