Table 2 Parameters for CRTS Ⅲ slab track... | Emerald Publishing

Table 2

Parameters for CRTS Ⅲ slab track on subgrade submodel

Component	Size (m×m×m)	Material	Young’s modulus (MPa)	Poisson ratio	Density (kg/m³)	Thermal coefficient (°C⁻¹)
Rail		Steel	2.1 × 10⁵	0.3	7,800
Track slab	5.6 × 2.5 × 0.21	Concrete	3.6 × 10⁴	0.2	2,500	10^–5
Filling layer	5.6 × 2.5 × 0.09	SCC	3.4 × 10⁴	0.167	2,500
Concrete base	3.1×0.30	Concrete	3.4 × 10⁴	0.2	2,500
Component	Longitudinal static/dynamic stiffness (kN/mm)	Lateral static/dynamic stiffness (kN/mm)	Vertical static/dynamic stiffness (kN/mm)	Longitudinal damp (kN·s/m)	Lateral damp (kN·s/m)	Vertical damp (kN·s/m)
Fastener	12/30	50/75	35/50	75	60	60
Component				Surface stiffness (MPa/m)
Isolation layer				400
Elastic cushion				120
Subgrade				76

Component	Size (m×m×m)	Material	Young’s modulus (MPa)	Poisson ratio	Density (kg/m³)	Thermal coefficient (°C⁻¹)
Rail		Steel	2.1 × 10⁵	0.3	7,800
Track slab	5.6 × 2.5 × 0.21	Concrete	3.6 × 10⁴	0.2	2,500	10^–5
Filling layer	5.6 × 2.5 × 0.09	SCC	3.4 × 10⁴	0.167	2,500
Concrete base	3.1×0.30	Concrete	3.4 × 10⁴	0.2	2,500
Component	Longitudinal static/dynamic stiffness (kN/mm)	Lateral static/dynamic stiffness (kN/mm)	Vertical static/dynamic stiffness (kN/mm)	Longitudinal damp (kN·s/m)	Lateral damp (kN·s/m)	Vertical damp (kN·s/m)
Fastener	12/30	50/75	35/50	75	60	60
Component				Surface stiffness (MPa/m)
Isolation layer				400
Elastic cushion				120
Subgrade				76

Source(s): Parameters courtesy of Zhao (2015) and Zhao et al. (2024)