Fuzzy Control for Seismic Protection of Semiactive Base-Isolated Structures Subjected to Near-Fault Earthquakes

Table 1

Selected Chi-Chi near-fault earthquakes.

Earthquake	Station	(m/s)	PGA (g)	PGV (cm/s)	PGD (cm)	PGV/PGA	Joyner-Boore; distance (Km)	Site classification
Chi-Chi	TCU110	212.72	0.18061	52.004	31.216	0.29	11.58	Soft soil
	CHY101	258.89	0.3829	91.28	60.731	0.24	9.94
	TCU123	270.22	0.1468	37.5	30.87	0.26	14.91
	TCU051	350.06	0.19428	42.378	57.953	0.22	7.64
	TCU060	375.42	0.14895	41.859	50.693	0.29	8.51
	TCU101	389.41	0.23429	56.319	62.133	0.25	2.11
	TCU056	403.2	0.15539	38.959	47.705	0.26	10.48	Medium soil
	TCU104	410.45	0.10059	43.351	46.291	0.44	12.87
	CHY024	427.73	0.22957	46.42	42.303	0.21	9.62
	TCU106	451.37	0.15421	38.177	30.958	0.25	14.97
	TCU053	454.55	0.18717	43.092	61.802	0.23	5.95
	TCU054	460.69	0.17207	45.145	68.386	0.27	5.28
	TCU136	462.1	0.16921	48.291	53.37	0.29	8.27
	TCU082	472.81	0.19836	51.229	69.534	0.26	5.16
	TCU063	476.14	0.15751	63.518	46.961	0.41	9.78
	TCU049	487.27	0.25431	56.23	69.733	0.23	3.76
	TCU068	487.34	0.46625	256.62	365.92	0.56	0.4
	TCU116	493.09	0.15476	42.122	35.828	0.28	12.38
	TCU103	494.1	0.15845	52.488	50.567	0.34	6.08
	TCU100	535.13	0.11101	39.15	48.05	0.36	11.37	Hard soil
	TCU109	535.13	0.15941	57.11	37.649	0.37	13.06
	TCU087	538.69	0.11697	42.41	51.865	0.37	6.98
	TCU050	542.41	0.14417	37.233	46.979	0.26	9.49
	TCU048	551.21	0.13435	42.379	51.429	0.32	13.53
	TCU057	555.23	0.11363	39.208	51.227	0.35	11.83
	TCU075	573.02	0.30134	79.037	70.594	0.27	0.89
	TCU052	579.1	0.39658	116.56	221.2	0.43	0.3
	TCU128	599.64	0.16034	63.283	63.457	0.40	13.13
	TCU102	714.27	0.26678	80.098	75.329	0.31	1.49