Complete Inverse Method Using Ant Colony Optimization Algorithm for Structural Parameters and Excitation Identification from Output Only Measurements

Table 7

Identified results for hand-shaked tests on the second floor.

Computation response segments	Identification results (×10^5) and identification errors
	𝑘1	Error	𝑘2	Error	𝑘3	Error
19.0~19.33 s	5.6022	−0.61	5.5341	−1.82	5.6282	−0.15
20.0~20.33 s	5.5308	−1.88	5.5969	−0.70	5.6462	0.17
24.0~24.33 s	5.6062	−0.54	5.6089	−0.49	5.6598	0.41
30.0~30.33 s	5.6013	−0.62	5.6068	−0.53	5.6424	0.10
40.0~40.33 s	5.6181	−0.33	5.6101	−0.47	5.6444	0.14
50.0~50.33 s	5.5968	−0.70	5.6174	−0.34	5.6403	0.07
60.0~60.33 s	5.5837	−0.94	5.6017	−0.62	5.6009	−0.63
Average value	5.5913	−0.80	5.5966	−0.71	5.6375	0.02