Performance Analysis of Prefabricated Steel-Spring Floating-Slab Track and Its Application to Urban Express Rail Transit

Table 11

Lateral-vibration index of the floating slab.

Calculation working condition	Lateral displacement of the floating slab						RMS of lateral-vibration acceleration of the floating slab
	L = 3.6 m			L = 4.8 m			L = 3.6 m			L = 4.8 m
	350	450	550	350	450	550	350	450	550	350	450	550
Straight line-140	0.290	0.296	0.293	0.155	0.132	0.150	0.050	0.048	0.038	0.046	0.043	0.025
Straight line-160	0.339	0.374	0.383	0.155	0.201	0.224	0.058	0.051	0.053	0.040	0.043	0.030
Straight line-200	0.508	0.510	0.489	0.342	0.371	0.390	0.090	0.079	0.062	0.062	0.073	0.055
Curve-140	0.275	0.203	0.251	0.194	0.187	0.217	0.087	0.074	0.061	0.072	0.062	0.060
Curve-160	0.233	0.241	0.292	0.165	0.246	0.262	0.123	0.078	0.059	0.074	0.093	0.084
Maximum per 100 mm range of change (%)	26.2			49.3			37.0			42.3

L: length; RMS: root mean square.