Damage Identification of Urban Overpass Based on Hybrid Neurogenetic Algorithm Using Static and Dynamic Properties

Table 9

Damage severity identification with single damage location using strain ratio.

Output results	Testing cases
	S1	S2	S3	S4	S5	S6	S7	S8
Expected outputs	0.35	0.5	0	0	0	0	0	0
	0	0	0.35	0.5	0	0	0	0
	0	0	0	0	0.35	0.5	0	0
	0	0	0	0	0	0	0.35	0.5
Actual outputs	0.342	0.5125	−0.0006	0.0036	−0.0004	0.0083	0.0032	0.0028
	0.0005	0.0007	0.3526	0.5011	0.0001	0	−0.0008	−0.0012
	0.0000	−0.0001	−0.0001	−0.0002	0.3512	0.5023	0.0001	0.0002
	0.0022	0.0036	0.0007	−0.0034	0	−0.0019	0.3468	0.5081
Relative errors (%)	2.29	2.5
			0.74	0.22
					0.33	0.47
							0.9	1.6