Based on obtained results, it was found that 45 km/h in the direction of gravity is the limit impact velocity for the designed composite rail track slab.
Hence, this study focuses predominantly on the structural response and performance evaluation of composite rail track slabs through 3D finite element analysis using ABAQUS.
The outcome of this study will improve the design standard and calculation of composite rail track slabs subjected to derailment actions.
The former is regarded as multi-rigid-body systems, while the latter is established by means of finite element method, in which rail, fastening system, track slab, CA mortar, concrete base and subgrade are considered as a whole body.
It consists of Euler Bernoulli beams to account for the rails and the track slab.
Standard track slab (STS) makes up the vast majority (80%) of the central section of Crossrail's route, and if you're a rail-user, it'll look pretty familiar to you – two rails bolted to sleepers, or 'ties' if you're in the US.
The revised equations are then used to investigate the dynamics of a typical high-speed railway track, including dispersion curves of the track, responses of the rail and slab to a moving harmonic load, and vibration decay rate along the rail.
Due to inductive impedance caused by steel meshes in traditional reinforced ballastless track slabs, the electric properties, primarily rail resistance and inductance, of the track circuit are affected by electromagnetic induction between the slabs and the electric current in the rail.
Because of the inductive impedance caused by steel meshes in traditional reinforced ballastless track slabs, the electrical properties, primarily the rail resistance and inductance, of jointless track circuits are affected by electromagnetic induction between the slabs and the electric current in the rail.
