Numerical Study on Steel-FRP Reinforced Concrete Beams

Abstract

This paper presents a three-dimensional Finite
Element Analysis (3D FEA) on reinforced
concrete beams tested experimentally by other
researcher for investigating the effectiveness of
hybrid reinforcement (FRP bars and steel bars)
as a main reinforcement to enhance the flexural
behavior of concrete beams. To provide a new
model which can simulate the performance of
concrete beam reinforced with steel and FRP
bars accurately, all of the beam components
were included in the model and element which
composing the model and mesh size were chosen
carefully. The user-programmable features in
ANSYS 13.0 were used for model analysis. The
developed model showed a good agreement with
the
corresponding experimental result. A
parametric study is carried out to investigate the
influence of FRP to steel reinforcement ratio,
FRP bars type, Location of FRP and steel bars
and concrete strength in the behavior of hybrid
FRP-RC beams.