Abstract
The innovative use of fibre-reinforced polymer (FRP) composite materials to control the manifestation of buckling in steel sections is described. The high stiffness and linear behaviour of FRP materials are utilised to provide 'bracing' against local buckling in a way that strategically leverages the unique mechanical properties of each material in an efficient application domain. Such an approach is not aimed at increasing the load-carrying capacity of the steel section, per se, although this may certainly be accomplished if desired. Rather, the approach is aimed at providing stability (in the sense of bracing) to the steel section through the use of FRP application to enforce nodal lines in a plate element for the purposes of increasing its critical load and constraining plastic flow in the plate element. The member becomes, in effect, an FRP-stabilised steel section.
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