Abstract
Two finite-element (FE) models for evaluating the lateral buckling loads of simply supported single- and two-span continuous unstiffened and carbon-fibre-reinforced plastic (CFRP) strip stiffened pultruded glass-reinforced plastic (GRP) wide-flange (WF) beams are presented. Eigenvalue analyses of the FE models are used to calculate the lateral buckling loads of unstiffened and CFRP stiffened beams. The effects of varying the stiffener geometry (thickness, width, etc.) and stiffener arrangement (CFRP strips bonded to bottom flange, top flange, etc.) on the critical buckling loads are quantified. It is shown that stiffeners increase the buckling loads of single-span beams more than two-span continuous beams and that only bonding CFRP strips to the top flange is a near-optimal stiffener arrangement.
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Schedule a callMore From: Proceedings of the Institution of Civil Engineers - Engineering and Computational Mechanics
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