A Fast Modeling Technique for the Vertical Train-Track-Bridge Interactions

Table 6

Dynamic acceleration amplification factors of wheel-track contact forces.

Cases		(I) 0.00 g	(II) 0.05 g	(III) 0.10 g	(IV) 0.20 g	(V) 0.40 g
1^st wheelset	Max DAF	1.01	1.32	1.66	2.98	6.34
	Min DAF	0.98	0.67	0.28	0.00	0.00
2^nd wheelset	Max DAF	1.01	1.32	1.62	3.03	6.13
	Min DAF	0.99	0.53	0.11	0.00	0.00
3^rd wheelset	Max DAF	1.01	1.26	1.48	2.00	3.37
	Min DAF	0.98	0.75	0.52	0.00	0.00
4^th wheelset	Max DAF	1.01	1.36	1.66	2.24	3.19
	Min DAF	0.99	0.57	0.20	0.00	0.00

DAF: dynamic amplification factors; DE: the design earthquake.