Complexities in Assessing Structural Health of Civil Infrastructures

Table 3

Stiffness parameter identification of 3D three-story frame.

Member	Actual (); (kN-m)	3D UKF-UI-WGI		3D GILS-EKF-UI
		24 DDOFs		24 DDOFs		27 DDOFs [2]
		Identified ()	Change (%)	Identified ()	Change (%)	Identified ()	Change (%)
	13476	13515	0.29	13562	0.64	13532	0.41
	13476	9343	−30.67	9288	−31.08	9209	−31.66
	13476	13124	−2.61	11529	−14.45	13647	1.27
	13476	13529	0.39	12461	−7.53	13458	−0.14
	13476	13263	−1.58	15358	13.96	13317	−1.18
	13476	13837	2.68	15706	16.54	14680	8.93
	13476	13452	−0.18	13498	0.16	13425	−0.38
	13476	13541	0.48	13359	−0.87	13633	1.16
	13476	13439	−0.28	14422	7.02	13479	0.02
	13476	13507	0.23	13519	0.32	13244	−1.72
	13476	13380	−0.72	14110	4.70	13964	3.62
	13476	13550	0.55	12332	−8.49	13285	−1.42
	14553	14530	−0.16	14601	0.33	14491	−0.43
	14553	14478	−0.51	14500	−0.36	14363	−1.31
	14553	14582	0.20	13924	−4.32	14557	0.03
	14553	14272	−1.93	13468	−7.46	13863	−4.74
	14553	14510	−0.30	14579	0.18	14459	−0.65
	14553	14778	1.54	13932	−4.27	14881	2.25
	14553	14410	−0.98	13793	−5.22	14604	0.35
	14553	14456	−0.67	15213	4.53	14932	2.60
	14553	14462	−0.63	14157	−2.72	14715	1.11
	14553	14513	−0.27	14483	−0.48	14162	−2.69
	14553	14780	1.56	16595	14.03	14507	−0.32
	14553	14416	−0.94	14429	−0.85	14372	−1.24