Base Isolation for Seismic Retrofitting of a Multiple Building Structure: Evaluation of Equivalent Linearization Method

Table 2

Set of earthquake natural records.

Waveform ID	Earthquake name	Date	Direction	PGA [m/s^2]	Magnitude
	Boshroyeh	16.09.78	EW	1.003	7.3
	Rionero in Vulture	23.11.80	EW	0.968	6.9
	Lauria	23.11.80	NS	0.155	6.9
	Korinthos	25.02.81	NS	1.144	6.3
	Balikesir	05.07.83	NS	0.237	6.1
	Tehran	20.06.90	EW	0.324	7.4
	Tehran	20.06.90	NS	0.286	7.4
	Tonekabun	20.06.90	NS	1.341	7.4
	Akhalkalaki	29.04.91	NS	0.113	6.8
	Tercan	13.03.92	EW	0.286	6.6