Rating of Dynamic Coefficient for Simple Beam Bridge Design on High-Speed Railways

• DOI: 10.2478/cee-2018-0005
• Publication Date: 2018-06-02T22:17:23Z
• Authors: Leonid Diachenko; Andrey Benin; Vladimir Smirnov; Anastasia Diachenko
• Keywords: Dynamic simulation; Bridge (graph theory)

Abstract The aim of the work is to improve methodology for dynamic computation simple beam spans during impact high-speed trains. Mathematical simulation utilizing numerical and analytical methods structural mechanics used in research. article analyses parameters effect trains on spanning bridge structures suggests a technique determining index live load. Reliability proposed confirmed by results train passage over with different speeds. algorithm based connection between maximum acceleration span resonance mode vibrations main factors stress-strain state. allows also minimum values efforts construction that makes possible perform endurance tests. It noted additions components state (bending moments, transverse force vertical deflections) are different. This condition determines necessity differentiated approach evaluation coefficients performing design verification I II groups limiting practical importance: making calculation split without direct analysis significantly reduces labour costs design.