Structural Performance of Concrete Filled FRP Thin Walled Tubular Beams

Corrosion of steel reinforcement in concrete is considered to be the major cause of deterioration in civil infrastructure facilities. The use of fibre-reinforced polymer (FRP) tubes acts as a structurally integrated stay-in-place form for concrete members that expand the service life of structures, enhancing the corrosion resistance and potentially high durability. This paper presents on an experimental study on the structural performance of normal and high strength of concrete infilled FRP thin walled tubular beams with different configurations. The concrete filled FRP thin walled tubular beams showed an increase in ultimate load carrying capacity, stiffness and ductility.