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A. Jain, K.N. van Dalen, A.V. Metrikine, A. B. Faragau, M.J.M.M. Steenbergen, "Comparative analysis of the dynamic amplifications due to inhomogeneities at railway transition zones", 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 19.1, 2022, doi:10.4203/ccc.1.19.1

Keywords: railway transition zones, finite element analysis, track components, stress amplification.

Abstract

Transition zones in railway tracks experience strong amplification of stress and strain fields due to the passage of train over inhomogeneity. The inhomogeneity in these zones can be attributed to changes in mechanical properties of material along the longitudinal direction of the track, and to displacement/traction discontinuities at interfaces leading to an amplified response in railway transition zones (TZ) with respect to the open tracks. In this paper, different kinds of inhomogeneities are considered in isolation and in combination to study the effects on railway track components in transition zone. The first type of inhomogeneity considered is non-uniformity of materials at various levels of the track along the longitudinal direction. The second type of inhomogeneity that will be considered arises from displacement and traction discontinuities at the interface of soil and structure and at the interface of sleepers and ballast (hanging sleepers). The results provide necessary insight for the design of effective mitigation measures to prevent the amplified response in railway TZ.

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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 19.1 Comparative analysis of the dynamic amplifications due to inhomogeneities at railway transition zones A. Jain, K.N. van Dalen, A.V. Metrikine, A. B. Faragau and M.J.M.M. Steenbergen Faculty of Civil Engineering and Geosciences, Delft University of Technology, The Netherlands doi:10.4203/ccc.1.19.1 Full Bibliographic Reference for this paper A. Jain, K.N. van Dalen, A.V. Metrikine, A. B. Faragau, M.J.M.M. Steenbergen, "Comparative analysis of the dynamic amplifications due to inhomogeneities at railway transition zones", 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 19.1, 2022, doi:10.4203/ccc.1.19.1 Keywords: railway transition zones, finite element analysis, track components, stress amplification. Abstract Transition zones in railway tracks experience strong amplification of stress and strain fields due to the passage of train over inhomogeneity. The inhomogeneity in these zones can be attributed to changes in mechanical properties of material along the longitudinal direction of the track, and to displacement/traction discontinuities at interfaces leading to an amplified response in railway transition zones (TZ) with respect to the open tracks. In this paper, different kinds of inhomogeneities are considered in isolation and in combination to study the effects on railway track components in transition zone. The first type of inhomogeneity considered is non-uniformity of materials at various levels of the track along the longitudinal direction. The second type of inhomogeneity that will be considered arises from displacement and traction discontinuities at the interface of soil and structure and at the interface of sleepers and ballast (hanging sleepers). The results provide necessary insight for the design of effective mitigation measures to prevent the amplified response in railway TZ. download the full-text of this paper (PDF, 9 pages, 966 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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