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 3
Natural frequency and deformation characteristics of Model 3.
| | Order | Natural frequency (Hz) | Increment of the natural frequency compared with that of Model 1 (%) | Deformation characteristics |
| | 1 | 0.78 | 16.4 | First-order Y-bending of the main beam | | 2 | 0.97 | 22.8 | First-order Z-direction bending of the main beam | | 3 | 1.78 | 17.1 | Second-order Y-direction bending of the main beam | | 4 | 2.20 | 12.2 | Torsion of the main beam | | 5 | 2.26 | 14.7 | Y-curved main tower | | 6 | 2.41 | 18.1 | X-direction bending of the main tower | | 7 | 2.55 | 12.3 | Y-direction bending of the main beam | | 8 | 2.96 | 24.9 | X-direction bending of the main tower |
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