Abstract
WJ-8 fasteners are widely used in passenger dedicated line in China. Ballastless track structure is required due to the special line for passenger transport. Fasteners for fixed rail, adjust orbit deformation, etc. Therefore, study the changing rule of the fastener performance especially fastener torque for the design and maintenance of track structure has important theoretical and practical significance. Combined with the force of the track structure, this article through the fatigue test was carried out on the track structure. A simulated train bogie of loading. Research WJ-8 fastener torque as the change of fatigue loading two million times. To provide reference for design and maintenance of Ballastless track.
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