Author(s)

SHINGO TAMAGAWA

Abstract

This study aims to establish a calculation method of load conditions for a performance test of rail fastenings of a floating slab track. A floating slab track is a type of vibration-reducing tracks. It is composed of rails, rail fastenings and concrete slabs supported by elastic layers such as coil springs. Among these components, the design of rail fastenings is an important factor in determining the performance of the floating slab track. In the design of rail fastenings, the Japanese design standard for railway structures requires that the performance of rail fastenings should be checked by the static loading test at a laboratory. In the performance test, the test load is applied to the rail in consideration of the load dispersion by the track. In this study, an FEM model of the floating slab track is developed to estimate the dispersed forces. It also shows the calculation method of load conditions for a performance test of rail fastening of the floating slab track. Furthermore, the performance test of the rail fastening is performed.

Keywords

rail fastening, floating slab track, performance test, load condition, FEM