Research Article
A Comparative Study on Sensitivity-Based Damage Detection Methods in Bridges
Table 1
Properties of different models.
| | Model name | Number of elements | Number of nodes | Mass density | Modulus of elasticity | Rayleigh coefficients | Undamaged natural frequency of intact model | | kg/mm3 | N/mm2 | | | First mode | Second mode | Third mode | Fourth mode | Fifth mode |
| | Multispan | 10 | 11 | 7.8 × 10−9 | 2.1 × 10−5 | 0.1 | 2.860 × 10−5 | 29.6 | 118.3 | 266.2 | 473.8 | 742.1 | | Grid | 46 | 32 | 7.8 × 10−9 | 2.1 × 10−5 | 0.1 | 2.364 × 10−5 | 45.6 | 92.8 | 181.7 | 259.7 | 399.1 |
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