Detection, Localization, and Quantification of Damage in Structures via Artificial Neural Networks

Table 7

Identified natural frequencies of the Z24 bridge.

Mode	SSI-DATA		Difference (%)
	Healthy scenario (Hz)	Damage scenario (Hz)
1	3.87	3.66	5.65
2	5.01	4.92	1.73
3	9.79	9.24	5.56
4	10.31	9.68	6.09
5	12.79	12.15	4.99
6	13.50	13.44	0.44
		Mean	4.08