Dynamic Responses of Vehicle-CRTS III Slab Track System and Vehicle Running Safety Subjected to Uniform Seismic Excitation

Table 1

The parameters of track.

Notation	Item	Value
mr	Unit length mass of rail	60.64 kg/m
Er	Elastic modulus of rail	2.059 × 10^11 N/m^2
Ir	Moment of inertia of rail	3.217 × 10^−5 m^4
Lrs	Space of fastener	0.65 m
Krsz	Vertical stiffness of fastener	2.5 × 10^7 N/m
Crsz	Vertical damping of fastener	2.6 × 10^4 N·s/m
Krsy	Lateral stiffness of fastener	5 × 10^7 N/m
Crsy	Lateral damping of fastener	1.24 × 10^4 N·s/m
Es	Elastic modulus of slab	3.65 × 10^10 N/m^2
ρs	Density of slab	2500 kg/m^3
Ec	Strength of self-compacting concrete layer	3.25 × 10^10 N/m^2
Ksdz	Surface stiffness of cushion layer	400 MPa/m
Csdz	Surface damping of cushion layer	3.43 × 10^4 Pa·s/m
Eb	Elastic modulus of base	3.25 × 10^10 N/m^2
ρb	Density of base	2500 kg/m^3