Research Article
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) |
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