TY - CONF A1 - Bronsert, Jeffrey A1 - Baeßler, Matthias A2 - Pombo, J. T1 - A numerical approach of the train-track interaction along discontinuous tracks T2 - Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance N2 - This paper presents a three dimensional numerical model which is can be used to investigate the effects on the track and in its vicinity due to a train passage. The numerical model for train track interaction is based on a time domain dynamic finite element model. Due to the unbounded nature of the soil the truncated boundary of the finite element domain is modelled with the scaled boundary finite element method, which is a semi-analytical approach. The application for a heterogeneous track along the track line is exemplified by a track with a bridge structure, where close attention is paid to the wheel-rail contact force. The results indicate that the wheel-rail contact force is not symmetrical around the bridge structure and an optimisation in terms of a backfilling area and under-sleeper-pads can improve such a transition. PB - Civil-Comp Press CY - Stirlingshire, Scotland, UK T2 - Railways 2016: The Third International Conference on Railway Technology: Research, Development and Maintenance CY - Cagliari, Sardinia, Italy DA - 5.04.2016 KW - Train-track interaction KW - Coupled FE-SBFE model KW - Finite element method KW - Scaled boundary finite element method KW - Bridge transition zone PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/36089 AN - OPUS4-36089 SP - Paper 274, 1 EP - 14 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany