The use of fibre reinforced polymer, FRP, as reinforcement for concrete structures has been growing rapidly in recent years. This paper summarizes the current state of knowledge of these materials and highlights the various FRP strengthening techniques that have been used for concrete and masonry structures. Material characteristics of FRP and fundamental design considerations are discussed. Selection of the appropriate materials and their corresponding advantages and disadvantages are highlighted. Design philosophies for concrete members reinforced and/or strengthened with FRP are enumerated. Fundamental flexure, shear and bond behaviour of concrete members reinforced and/or strengthened with FRP according to the current ACI design guidelines are examined. The paper also reviews the durability aspects of FRP and describes selected field applications of these materials. Copyright © 2003 John Wiley & Sons, Ltd.

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This paper presents the results of an investigation on the buckling behavior of concentrically loaded thin–walled pultruded fiber reinforced polymer (PFRP) composite columns. Both open- and closed-web columns were evaluated. Finite element (FE) analysis and theoretical predictions are presented and correlated with experimental data. Good agreement between theoretical, analytical and experimental results was achieved. The paper also presents design guidelines to determine the bending stiffness and the critical buckling load for pultruded composite columns. In addition, a discussion on the axial strength of unidirectional PFRP columns and identification of different modes of failure are presented.

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