investigation on the accuracy of the current practices in analysis of railway track concrete sleepers

in this paper, the main factors in the analysis of the railway concrete sleepers areinvestigated and new recommendations are made in order to improve the accuracy of the currentpractices in analysis of the railway track system. first, a comprehensive literature survey isconducted, then, fem models for a railway track system are developed and used to discuss andevaluate the assumptions commonly used in the analysis of the railway track system. the analysisfactors investigated include stress distribution under a concrete sleeper, rail-seat load, anddynamic coefficient factor. finally, recommendations and needs for continuation of the researchare presented.