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      Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models

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          Abstract

          The lack of lateral resistance in a curved railway track can produce misalignment problems due to the centrifugal forces when the trains pass through. Moreover, most of the times continuous welded rails (CWR) are used in nowadays railway tracks, which can induce the track buckling as a result of thermal loads caused by high temperature gradients. A new sleeper has been designed to provide higher lateral resistance of the track. A finite element model has been developed to analyze the lateral movements of an actual curved track subjected to lateral resistance problems. Then, variations on the finite element model have been made to study the response of the track when different sleepers are used. Thus, the performance of the different sleepers in the modeled track has been analyzed, resulting that the inclusion of the new sleeper in the track can improve the lateral resistance between 39 and 55 % with respect to a track with conventional sleepers made of wood or concrete.

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          Most cited references 12

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          Fatigue crack growth in a welded rail under the influence of residual stresses

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            Recomendaciones para el proyecto de plataformas ferroviarias

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              A numerical study of the lateral ballast resistance in railway tracks

               E Kabo (2006)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                lajss
                Latin American Journal of Solids and Structures
                Lat. Am. j. solids struct.
                Associação Brasileira de Ciências Mecânicas (Rio de Janeiro )
                1679-7825
                December 2014
                : 11
                : 7
                : 1238-1250
                Affiliations
                [1 ] Universitat Politècnica de València Spain
                [2 ] Foundation for the Research and Engineering in Railways Spain
                Article
                S1679-78252014000700009
                10.1590/S1679-78252014000700009
                d876fd4a-549c-4acb-866c-0c4c00d36d76
                Product
                Product Information: website
                Categories
                ENGINEERING, CIVIL
                ENGINEERING, MECHANICAL
                MECHANICS

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