This book presents a series of experimental and theoretical studies aimed at the development of a design guideline for CFRP strengthened CFS structures. Thin elements may buckle locally at a stress level lower than the yield stress of steel when they are subjected to compression in flexural bending and axial compression. This can be controlled to some extent by strengthening the steel members with Carbon Fiber Reinforced Polymer (CFRP) sheets to improve buckling resistance. For purpose of validation, the results based on proposed design equation from North American specification for the...