Design of a Tuned Mass Damper Inerter (TMDI) Based on an Exhaustive Search Optimization for Structural Control of Buildings under Seismic Excitations

Table 4

Response of the uncontrolled structure when it is excited by “Christchurch” earthquake.

Storey	Maximum displacement (m)	RMS value of the displacement (cm)	Maximum velocity (m/s)	RMS value of the velocity (m/s)	Maximum acceleration (m/s^2)	RMS value of the acceleration (m/s^2)	Peak interstorey drift (m)	Peak interstorey drift ratio (%)
1	0.0212	0.005	0.2065	0.0245	13.1273	1.2379	0.021	0.78
2	0.0589	0.014	0.3956	0.0514	10.2182	1.0456	0.039	1.42
3	0.1164	0.028	0.5804	0.0758	10.2923	0.8617	0.061	2.23
4	0.1585	0.039	0.5941	0.0976	8.3369	1.0181	0.042	1.56
5	0.1901	0.049	0.5081	0.1162	9.9784	0.9546	0.039	1.42
6	0.2181	0.058	0.5916	0.1352	9.5672	0.9775	0.036	1.34
7	0.2438	0.065	0.6688	0.1510	9.0832	0.9899	0.030	1.10
8	0.2614	0.071	0.7251	0.1625	10.3773	0.9548	0.029	1.08
9	0.2695	0.076	0.7823	0.1728	8.9451	1.0506	0.030	1.11
10	0.2735	0.079	0.7292	0.1792	9.3335	0.9107	0.023	0.84
11	0.2773	0.081	0.7733	0.1865	11.0204	1.1567	0.022	0.82