Research Article
Auxiliary Piers on Long-Span Specially Shaped Mixed Steel Structure Main Tower Cable-Stayed Bridge: Research on the Impact on the Dynamic Performance
Table 5
The natural frequency and deformation characteristics of Model 5.
| | Order | Natural frequency (Hz) | Increment of the natural frequency compared with that of Model 1 (%) | Deformation characteristics |
| | 1 | 1.43 | 113.4 | First-order Y-bending of the main beam | | 2 | 1.49 | 88.6 | Y-curved main tower | | 3 | 2.50 | 64.5 | X-direction bending of the main tower | | 4 | 2.57 | 31.1 | First-order Y-direction of the main beam + Y-direction bending of the main tower | | 5 | 3.13 | 58.9 | X-direction bending of the main tower | | 6 | 3.41 | 67.2 | Y-curved main tower | | 7 | 3.55 | 56.4 | Second-order Y-direction bending of the main beam | | 8 | 3.68 | 55.3 | Second-order Y-direction of the main beam + Y-direction bending of the main tower |
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