Influence of Excitation on Dynamic System Identification for a Multi-Span Reinforced Concrete Bridge

Table 3

Comparison of measured and calculated modal properties.

Mode	Natural frequencies (Hz)			Mode shape: MAC
	Measured	Calculated (FE)	Difference (%)
1	2.485	2.480	0.2	0.9988
2	4.160	4.024	3.3	0.9594
3	5.706	5.695	0.2	0.9425