Analytical modeling and axial load design of a novel FRP-encased steel–concrete composite column for various slenderness ratios

A novel composite column composed of steel, concrete and a fiber reinforced polymer (FRP) tube is presented in this paper. The confinement and composite action between the constituent materials result in enhanced compressive strength, ductility and energy dissipation capacity of the proposed composite column compared to a traditional reinforced concrete (RC) column. Due to the presence of the FRP tube, current design methods for concrete-filled …