Abstract

This paper deals with the specifics ofcalculating the earthquake resistance ofreinforced concrete railway bridges using real earthquake records. The finite element and finite difference methods are used to discretize the problem taking into account the interaction of the bridge foundation with the soil using the Winkler-type model. Nonlinear deformation of the bridge abutments is also taken into account. As a calculation example, a 29.6 m long railway bridge in a span located on Navoi-Bukhara railway section is selected. The analysis of stress and strain state of bridge's elements on the basis of Gasli earthquake records has been carried out. The case of displacement with dry friction of span structure on ledgers in lateral direction is considered. The shifts and stresses of the considered railway bridge in calculations for an earthquake ofmore than 9 points have shown that their values correspond to the accepted norms.