Study on Dynamic Amplification Coefficient of U-Shaped Girder Based on Vehicle-Bridge Coupling Dynamics

Table 7

The DAFs of the longitudinal stresses.

	Train speed (km/h)
Type-A	60	70	80	90	100	110	120	130	140	150	160
	1.028	1.022	1.040	1.060	1.105	1.118	1.092	1.065	1.067	1.085	1.123
Type-B	60	70	80	90	100	110	120	130	140	150	160
	1.028	1.030	1.034	1.054	1.089	1.071	1.092	1.129	1.197	1.175	1.112
Type-D	100	110	120	130	140	150	160	170	180	190	200
	1.038	1.045	1.087	1.108	1.114	1.146	1.164	1.191	1.215	1.222	1.263
Max	1.263 (at the transverse center near the fixed end of the girder designed for type-D with V = 200 km/h)