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The 1st Natural Frequencies of each span.
| The Fundamental Frequency (Hz) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Span No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Span length (m) | 12.2 | 12.2 | 15.85 | 15.85 | 15.85 | 15.85 | 15.85 | 15.85 | 15.85 | 15.85 | 12.2 | 12.2 |
| Free vibration | 8.6 | 8.5 | 6.2 | 8.3 | 8.2 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 8.6 | 8.8 |
| Forced vibration | 8.2 | 8.1 | 5.8 | 8.0 | 8.0 | 5.9 | 6.0 | 6.1 | 6.5 | 6.1 | 8.5 | 8.5 |
