Fastenings are all the materials whose function it is to structurally connect the rail to the sleeper. This chapter examines the influence of the secondary stiffness of the clip on the behavior of the rail in the track panel in terms of the rail tilt/rotation, the clamping force and rigidity. The requirements for a modern railway track fastening should be as follows: low static stiffness coefficient, <100 kN/mm for the fastening as derived from the load‐deflection curve of the pad; compatibility of the clip and the pad of the fastening as it is derived from the combination and comparison of the load, deflection curves of the clip and the pad (toe‐load in any case >8 kN); secondary stiffness in order to decrease the “tilt of the rail” and keep it under a maximum limit of approximately 2 mm.
Secondary Stiffness of Fastening Clips: Influence on the Behavior of the Railway Track Panel
Materials and Infrastructures 2 ; 115-129
2016-06-30
15 pages
Article/Chapter (Book)
Electronic Resource
English
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