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

Table 14

Comparison of rail displacement of the floating-slab-track bed.

Calculation working condition	Vertical displacement of the rail (mm)				Lateral displacement of the rail (mm)
	L = 3.6 m		L = 4.8 m		L = 3.6 m		L = 4.8 m
	−	+	−	+	−	+	−	+
Straight line-140	5.031	2.546	4.002	2.454	0.519	0.209	0.322	0.253
Straight line-160	5.102	2.582	4.173	2.471	0.523	0.218	0.329	0.263
Straight line-200	5.331	2.683	4.446	2.540	0.745	0.375	0.588	0.356
Curve-140	5.316	2.670	4.305	2.603	0.624	0.292	0.397	0.320
Curve-160	5.340	2.698	4.307	2.601	0.787	0.286	0.385	0.303
Maximum change (%)	49.77		40.78		63.66		39.45

L: length; −: side-mounted isolators are not installed; +: side-mounted isolators are installed.