Table 1 Modal properties of the first 10 modes of the prototype bridge
Mode | Frequency (Hz) | Period (Sec) | Dominant direction | Symmetry |
|---|---|---|---|---|
1 | 1.704 | 0.587 | Longitudinal | Symmetric |
2 | 5.425 | 0.184 | Vertical | Symmetric |
3 | 5.637 | 0.177 | Vertical | Asymmetric |
4 | 6.513 | 0.154 | Vertical | Symmetric |
5 | 7.584 | 0.132 | Vertical | Asymmetric |
6 | 8.175 | 0.122 | Vertical | Symmetric |
7 | 8.428 | 0.119 | Vertical | Asymmetric |
8 | 8.611 | 0.116 | Vertical | Asymmetric |
9 | 9.024 | 0.111 | Vertical | Symmetric |
10 | 9.118 | 0.110 | Vertical | Symmetric |