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

Table 5

Comparisons of identified stiffness coefficients (unknown seismic excitation).

Story no	Exact (103 N/m)	Identified (103 N/m)	Error (%)
1st	1200	1200.78	−0.07
2nd	1200	1198.66	0.11
3rd	1200	1197.31	0.22
4th	1200	1199.50	0.04
5th	1200	1197.75	0.19
6th	1200	1199.15	0.07
7th	1200	1201.87	−0.16
8th	1200	1200.91	−0.08
9th	1200	1200.57	−0.05
10th	1200	1203.40	−0.28
SAMD	1.2	1.19	0.00