Real-Time Integration of Identification and Semiactive Optimization Control for Mass Damper-Building Combined Systems under Known/Unknown Seismic Excitations

Table 2

Comparisons of identified stiffness parameters (known seismic excitation).

Story no	Exact (103 N/m)	Identified (103 N/m)	Error (%)
1st	1200	1205.38	−0.45
2nd	1200	1198.03	0.16
3rd	1200	1202.10	−0.18
4th	1200	1196.34	0.30
5th	1200	1201.51	−0.13
6th	1200	1192.49	0.63
7th	1200	1200.38	−0.03
8th	1200	1197.69	0.19
9th	1200	1203.68	−0.31
10th	1200	1196.76	0.27
SAMD	1.2	1.20	0.00