Derivation Of Polynomial Functions For The Prediction Of Critical Axial Forces In Bridge Trusses.

ABSTRACT This study presents the derivation of polynomial functions for the prediction of critical axial forces in bridge trusses. Four different bridge trusses were considered in this study, three of which are statically determinate while one is statically indeterminate. These trusses at different height to span (aspect) ratios were tested for critical axial forces under the same conditions. The graphs of their critical axial forces against aspect ratios were plotted and this led to the findings that these axial forces fit into certain polynomial behavior (equations). This study was designed …