The Parameter Identification of Structure with TMD considering Seismic Soil-Structure Interaction

Table 3

Identification results of system physical parameters.

Excitation				Known	Unknown
Model			Theoretical	Identified	Identified
Superstructure	Damping ratio		0.02	0.02	0.02
	Stiffness	(10^8 N/m)	3.5	3.5	3.5
		(10^8 N/m)	2.5	2.5	2.5
		(10^8 N/m)	1.5	1.5	1.5
		(10^8 N/m)	1.0	1.0	1.0
		(10^8 N/m)	0.5	0.5	0.5
TMD	Frequency	(Hz)	0.678	0.678	0.678
	Damping ratio		0.2153	0.2153	0.2153
Foundation	Stiffness	(10^8 N/m)	9.54	9.54	9.54
		(10^10 N/m)	9.41	9.41	9.41
	Damping	(10^7 N·s/m)	5.48	5.48	5.48
		(10^9 N·s/m)	1.41	1.41	1.41