Random Vibration Analysis of Train Moving over Slab Track on Bridge under Track Irregularities and Earthquakes by Pseudoexcitation Method

Table 1

Major parameters for slab track and bridge.

Notation	Item	Unit	Value
Slab track
	Young’s modulus of rail	N/m^2	2.06 × 10^11
	Flexural moment of inertia about -axis of cross section of rail	m^4	3.217 × 10^−5
	Flexural moment of inertia about -axis of cross section of rail	m^4	5.24 × 10^−6
	Mass per unit length of rail	kg/m	60.64
	Young’s modulus of slab	N/m^2	3.6 × 10^10
	Flexural moment of inertia of cross section of slab	m^4	1.4 × 10^−3
	Flexural moment of inertia of cross section of slab	m^4	0.219
	Mass per unit length of slab	kg/m	1.2 × 10^3
	Lateral stiffness of fastener	N/m	3.0 × 10^7
	Vertical stiffness of fastener	N/m	5.0 × 10^7
	Lateral stiffness of CAM per unit length	N/m^2	1.5 × 10^9
	Vertical stiffness of CAM per unit length	N/m^2	1.5 × 10^9
Girder
	Young’s modulus of girder	N/m^2	3.45 × 10^10
	Flexural moment of inertia about -axis of cross section of girder	m^4	12.744
	Flexural moment of inertia about -axis of cross section of girder	m^4	96.435
	Mass per unit length of girder	kg/m	2.972 × 10^4
	Fundamental frequency of girder	Hz	5.58
	Second natural frequency of girder	Hz	13.26
Pier
	Young’s modulus of pier	N/m^2	3.15 × 10^10
	Flexural moment of inertia about -axis of cross section of pier	m^4	73.23
	Mass per unit length of pier	kg/m	5.2 × 10^4