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P. Museros, C. Riascos, "High-Speed Passenger Train Load Model PT60: A Wide-Ranging Dynamic Excitation Source for the Assessment of Railway Bridge Analysis Methods in Moving Load Problems.", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 2.3, 2026, doi:10.4203/ccc.15.2.3

Keywords: railway bridges, moving loads, train subtypes, response and exceedance maps, regular trains, articulated trains, conventional trains.

Abstract

This work presents the PT60 model, a reduced and representative passenger-train load model for the dynamic assessment of railway bridges. The model comprises 60 passenger trains selected from a broader database of real and synthetic configurations, including conventional, articulated, regular, loco-hauled, and intermediate-power-car arrangements. The selection was aimed at preserving the main dynamic effects of the complete database while reducing redundancy among dynamically similar vehicles. Therefore, trains with relevant axle-spacing patterns, car-body lengths, axle-load distributions, total train lengths, and strong dynamic signatures were retained. The ten HSLM-A trains were also included to provide a direct link with the European normative framework. The PT60 ensemble is organised from nearly periodic train configurations to increasingly irregular geometries, allowing the progressive representation of resonance-dominated responses as well as transient effects caused by non-perfectly repetitive axle distances. Its dynamic behaviour was evaluated through response and exceedance maps, using a semi-analytical formulation as reference and the Residual Influence Line (LIR) method as a simplified approach. The results, obtained within the framework of the ERJU project InBridge4EU, show that PT60 provides a compact basis for identifying critical resonance conditions and comparing train-induced dynamic effects in railway bridges.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 15 PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 2.3 High-Speed Passenger Train Load Model PT60: A Wide-Ranging Dynamic Excitation Source for the Assessment of Railway Bridge Analysis Methods in Moving Load Problems. P. Museros and C. Riascos , Universitat Politècnica de València, Valencia, Spain doi:10.4203/ccc.15.2.3 Full Bibliographic Reference for this paper P. Museros, C. Riascos, "High-Speed Passenger Train Load Model PT60: A Wide-Ranging Dynamic Excitation Source for the Assessment of Railway Bridge Analysis Methods in Moving Load Problems.", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 2.3, 2026, doi:10.4203/ccc.15.2.3 Keywords: railway bridges, moving loads, train subtypes, response and exceedance maps, regular trains, articulated trains, conventional trains. Abstract This work presents the PT60 model, a reduced and representative passenger-train load model for the dynamic assessment of railway bridges. The model comprises 60 passenger trains selected from a broader database of real and synthetic configurations, including conventional, articulated, regular, loco-hauled, and intermediate-power-car arrangements. The selection was aimed at preserving the main dynamic effects of the complete database while reducing redundancy among dynamically similar vehicles. Therefore, trains with relevant axle-spacing patterns, car-body lengths, axle-load distributions, total train lengths, and strong dynamic signatures were retained. The ten HSLM-A trains were also included to provide a direct link with the European normative framework. The PT60 ensemble is organised from nearly periodic train configurations to increasingly irregular geometries, allowing the progressive representation of resonance-dominated responses as well as transient effects caused by non-perfectly repetitive axle distances. Its dynamic behaviour was evaluated through response and exceedance maps, using a semi-analytical formulation as reference and the Residual Influence Line (LIR) method as a simplified approach. The results, obtained within the framework of the ERJU project InBridge4EU, show that PT60 provides a compact basis for identifying critical resonance conditions and comparing train-induced dynamic effects in railway bridges. download the full-text of this paper (PDF, 12 pages, 819 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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