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G. Ferreira¹, P. Montenegro¹, A. A. Henriques² and R. Calcada¹

¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Porto, Portugal
²CONSTRUCT-LABEST, Faculty of Engineering, University of Porto, Porto, Portugal

doi:10.4203/ccc.1.6.12

G. Ferreira, P. Montenegro, A.A. Henriques, R. Calcada, "Probabilistic Approach for Assessment of Track Stability Safety Factor on Ballasted Railway Bridges", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 6.12, 2022, doi:10.4203/ccc.1.6.12

Keywords: high-speed railway bridges, probabilistic analysis, Eurocode.

Abstract

Railways are increasingly an essential part of a greener future. In Europe, the Shift2Rail programme has promoted research projects related to rail infrastructure, including the enhancement of building codes. Concerning the EN 1990-Annex A2, this study discusses its limit for vertical deck acceleration on ballasted track railway bridges and the partial safety factor associated with it. A novel methodology to calculate such factors is presented, based on a probabilistic approach that accounts for the variability in geometrical and mechanical properties of the bridge. A case study bridge is used to calculate new partial safety factors, considering the High Speed Load Model. The results indicate that there is a margin for discussion of that partial safety factor in the Eurocode.

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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: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 6.12 Probabilistic Approach for Assessment of Track Stability Safety Factor on Ballasted Railway Bridges G. Ferreira¹, P. Montenegro¹, A. A. Henriques² and R. Calcada¹ ¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Porto, Portugal ²CONSTRUCT-LABEST, Faculty of Engineering, University of Porto, Porto, Portugal doi:10.4203/ccc.1.6.12 Full Bibliographic Reference for this paper G. Ferreira, P. Montenegro, A.A. Henriques, R. Calcada, "Probabilistic Approach for Assessment of Track Stability Safety Factor on Ballasted Railway Bridges", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 6.12, 2022, doi:10.4203/ccc.1.6.12 Keywords: high-speed railway bridges, probabilistic analysis, Eurocode. Abstract Railways are increasingly an essential part of a greener future. In Europe, the Shift2Rail programme has promoted research projects related to rail infrastructure, including the enhancement of building codes. Concerning the EN 1990-Annex A2, this study discusses its limit for vertical deck acceleration on ballasted track railway bridges and the partial safety factor associated with it. A novel methodology to calculate such factors is presented, based on a probabilistic approach that accounts for the variability in geometrical and mechanical properties of the bridge. A case study bridge is used to calculate new partial safety factors, considering the High Speed Load Model. The results indicate that there is a margin for discussion of that partial safety factor in the Eurocode. download the full-text of this paper (PDF, 8 pages, 585 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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