Optimal Design of Liquid Dampers for Structural Vibration Control Based on GA and 𝐻_∞ Norm

Table 4

Reduction ratios of the top story of the structure at different earthquake records.

Earthquake records	Maximum displacements			Maximum accelerations
	Without control (cm)	TLCD control (cm)	Reduction ratio (%)	Without control (g)	TLCD control (g)	Reduction ratio (%)
Kobe	2.09	1.75	16.27	2.23	1.87	16.14
El Centro	0.98	0.78	20.41	1.02	0.85	16.67
Northridge	1.73	1.52	12.14	1.83	1.60	12.57
Hach	0.48	0.37	22.92	0.48	0.39	18.75