Earthquake Influence on the Rail Irregularity on High-Speed Railway Bridge

Table 5

The maximum displacement of rail after subjecting to the earthquake excitation with different shear velocities (unit: mm).

PGA (g)	Earthquake velocity (m/s)	Soil site	Characteristic period (s)	Alignment irregularity (mm)
0.50	<150	IV	0.5	78.4
	150–250	III	0.46	38.8
	250–500	II	0.36	45.3
	>500	I	0.17	22.8