Research Article
Dynamic Response of Railway Bridges under Heavy-Haul Freight Trains
Figure 6
Vibration modes of the bridge girder. (a) f1 = 2.9 Hz. (b) f2 = 5.62 Hz. (c) f3 = 9.86 Hz. (d) f4 = 11.69 Hz. (e) f5 = 13.24 Hz. (f) f6 = 19.87 Hz.
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| (b) |
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| (d) |
| (e) |
| (f) |