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

Table 15

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

Calculation working condition	Vertical displacement of the floating slab (mm)				Lateral displacement of the floating slab (mm)
	L = 3.6 m		L = 4.8 m		L = 3.6 m		L = 4.8 m
	−	+	−	+	−	+	−	+
Straight line-140	3.741	2.016	2.995	1.849	0.252	0.104	0.127	0.118
Straight line-160	3.759	2.033	3.006	1.850	0.347	0.111	0.196	0.125
Straight line-200	3.763	2.039	3.102	1.859	0.503	0.244	0.385	0.217
Curve-140	3.718	1.990	2.864	1.772	0.152	0.145	0.289	0.195
Curve-160	3.726	1.999	2.975	1.789	0.241	0.103	0.241	0.170
Maximum change (%)	46.48		40.07		68.01		43.64

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