Development of a New High-Speed Load Model and Validation on Existing Railway Bridges

In the near past, dynamic calculations of train crossing for railway bridges have shown, that the applied HSLM model trains given in DIN EN 1991-2 do not cover the bridge acceleration response for certain real operating trains (e. g. of German ICE 4).Hence, the application of the current HSLM might lead to an unsafe design of new railway bridges and destabilization of the ballast layer may occur, leading to safety critical track position defects and eventually to train derailments.Hence, in November 2019 the consortium TU Darmstadt, KU Leuven, Austrian Institute of Technology and REVOTEC was commissioned by the German Federal Railway Authority to develop a completely new European high-speed load model for a new reliable dynamic design of railway bridges.The project runs from 2019 to 2023 and in this paper the draft version of the new developed load model and results of an already