International Symposium on Steel Bridges, 2014, İstanbul, Turkey, 14 - 16 September 2015, vol.1, no.1, pp.121-128
The long span orthotropic bridge decks applied around the World are used with open or closed cross-sectional longitudinal ribs placed below the steel deck to increase the strength of the deck. Fatigue cracks are developed in the longitudinal ribs due to traffic loadings. In this study, two different longitudinal ribs having trapezoidal and triangular cross-sections are modeled and the stresses for the ribs are evaluated due to tire loading using finite element analysis (FEA). Both of the longitudinal ribs are used for long span steel bridges. The aim of this study is to compare the shape of the cross-sections of the ribs under tire loading using FEA method.