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ABSTRACT
This article builds on previous work in the literature to investigate the dynamic effect of end bearings between consecutive slab units of floating-slab tracks. The work considers a floating-slab track with discrete units under the action of a harmonic moving load. A special periodic-structure model is developed for this purpose. The model performs calculations in the frequency domain and makes use of the periodicity condition resulting from the use of unit slabs as well as that due to the nature of applied loading. The article demonstrates the influence of vertical stiffness of end bearings and its effect on the dynamic responses of the tracks.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
The first author would like to acknowledge the financial support received in support of this work from Qatar University Start-up grant scheme [Project reference: QUSG-CENG-CAE-14\15-3]. The second author would like to thank FCT for the financial support provided by projects POCI-01-0145-FEDER-007457 and PTDC/ECM-COM/1364/2014.