Research Article
Refined Vehicle-Bridge Interaction Analysis Using Incompatible Solid Finite Element for Evaluating Stresses and Impact Factors
Table 3
Computed and measured natural frequencies (unit: Hz).
| Modes | Measured | FE model | Case 1 | Case 2 | Case 3 | Case 4 |
| 1st vertical bending | 4.81 | Solid | 4.61 | 7.79 | 10.33 | 10.33 | Grillage | 4.53 | 4.53 | | |
| 1st torsion | 7.14 | Solid | 6.77 | 7.92 | 10.90 | 10.90 | Grillage | 6.71 | 6.71 | | |
| 2nd vertical bending | 16.03 | Solid | 14.89 | 15.81 | 27.89 | 27.89 | Grillage | 14.93 | 14.93 | | |
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