FEM based approach for development of a new high-speed load model for railway bridges

The high-speed load model (HSLM), developed more than 20 years ago, is defined in the code "EN 1991-2" for a dynamic analysis of railway bridges - with respect to ballast destabilisation - within lines with a vehicle speed of more than 120 km/h. The compliance with the (dynamic) load bearing capacity and the serviceability acceleration must be verified for designing new bridges and assessing existing bridges, especially if a speed increase on the railroad is intended. New vehicle types, which are not always covered by the standardised load model, must be examined additionally. This leads to a clear and an urgent need for a revision of the existing high-speed load model. Within this paper, a large-scale dynamic FEM computation including 17 million train passages is presented as a basis for developing a new standard-compliant dynamic load model within the ongoing international project, commissioned by the German EBA (Federal Railway Authority).

Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden.