Abstract
The present study is an experimental investigation into the behaviour of high strength concrete square short columns subjected to biaxial bending moments and strengthened by GFRPlaminates. The main objectives of the study are: to evaluate the improvement in the structuralexternally applied FRP laminates, and to investigate the optimum arrangement and amount of FRPlaminates to achieve potential enhancement in structural performance especially ductility. The parametersconsidered in this study are: number of FRP layers and arrangement of wraps. The load eccentricity ise/t = 0.125 in two perpendicular directions to the columns principal axes, and thewraps are applied in single or double layers (partial or full wrapping). In the present work, test results ofused successfully to enhance the ductility of HSC columns subjected to biaxial bending by 300%. KCI Citation Count: 3