The Structural Engineer > Archive > Volume 70 (1992) > Issues > Issue 21 > Local Buckling of Composite Box Girders Under Negative Bending
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Local Buckling of Composite Box Girders Under Negative Bending

The semi-analytical finite strip method of analysis is used to study the local buckling of composite box sections in negative bending consisting of a concrete deck connected to a steel trough. Design charts are produced to determine the local buckling coefficient for the web. It is then shown how this local buckling coefficient may be used to calculate the web width-to-thickness ratio that delineates the boundary between the section classifcations of semi-compact and slender. The method is illustrated by an example. M.A. Bradford and T.C. Wong

Author(s): Bradford, M A;Wong, T C

Keywords: box beams;composite;buckling;negative;deflecting;finite strip method;analysis;worked examples;concrete;decks;steel;troughs