A Comparative Study on Vertical Dynamic Responses of Three Types of Elevated Railway Tracks Subjected to a Moving Train

Table 2

Model parameters of rubber-pad floating slab track.

Parameter	Symbol	Value
Rail bending stiffness		1.3247 × 10^7 N·m^2
Rail linear mass		120 kg/m
Hysteretic damping ratio of rail		0.001
Under-rail spring stiffness		9.0 × 10^7 N/m
Hysteretic damping ratio of under-rail spring		0.2
Number of springs above one slab		10
Under-rail spring spacing		0.58 m
Slab bending stiffness		2.34 × 10^8 N·m^2
Slab linear mass		2323.2 kg/m
Hysteretic damping ratio of slab		0.05
Number of slabs in one unit		6
Number of springs beneath one slab		4
Slab length		5.8 m
Under-slab spring stiffness		1.74 × 10^8 N/m
Hysteretic damping ratio of under-slab spring		0.25
Under-slab spring spacing		1.45 m