TY - THES
T1 - Design Optimization for Railway Transition Zones
AU - Shang, Y.
PY - 2024
Y1 - 2024
N2 - Transition zones in railway tracks, which occur at changes in track form and or substructure properties, are known to cause issues with track degradation. Examples can be found where a track section, usually a ballast track, transits to a slab track to cross a roadway or waterway through supporting structures such as bridges, level crossings, and culverts. These changes in track form and properties cause an abrupt change in track support stiffness, which, in turn, generates additional dynamic forces when a vehicle passes by. Over time, the effect of dynamic impact leads to the development of differential settlement between the settlement-free supporting structures and the connecting track. This further increases loads and accelerates the degradation of the track through successive deterioration of track geometry and components....
AB - Transition zones in railway tracks, which occur at changes in track form and or substructure properties, are known to cause issues with track degradation. Examples can be found where a track section, usually a ballast track, transits to a slab track to cross a roadway or waterway through supporting structures such as bridges, level crossings, and culverts. These changes in track form and properties cause an abrupt change in track support stiffness, which, in turn, generates additional dynamic forces when a vehicle passes by. Over time, the effect of dynamic impact leads to the development of differential settlement between the settlement-free supporting structures and the connecting track. This further increases loads and accelerates the degradation of the track through successive deterioration of track geometry and components....
KW - Railway transition zone
KW - performance-based design
KW - vehicle–track interaction
KW - surrogate modeling-based optimization
KW - sensitivity analysis
U2 - 10.4233/uuid:5ecbe3d3-f275-4c17-90fc-c8ec906a1316
DO - 10.4233/uuid:5ecbe3d3-f275-4c17-90fc-c8ec906a1316
M3 - Dissertation (TU Delft)
SN - 978-94-6384-589-2
ER -