Research Article
Mass-Stiffness Combined Perturbation Method for Mode Shape Monitoring of Bridge Structures
Table 5
Natural frequencies of Wangyu River Bridge (Hz).
| | Scenarios | Mode no. | | First | Second | Third | Fourth | Fifth | Sixth |
| | Intact | 1.1147 | 1.7703 | 2.8049 | 3.2438 | 3.4060 | 5.6567 | | D-I | 1.1133 | 1.7673 | 2.8048 | 3.2429 | 3.4024 | 5.6565 | | D-II | 1.1136 | 1.7691 | 2.8048 | 3.2415 | 3.4045 | 5.6563 | | D-III | 1.1135 | 1.7693 | 2.8039 | 3.2428 | 3.4044 | 5.6563 | | D-IV | 1.1131 | 1.7669 | 2.8047 | 3.2437 | 3.3988 | 5.6558 |
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