Sequential Ground Motion Effects on the Behavior of a Base-Isolated RCC Building

Table 3

Maximum top accelerations for the RCCs.

Ground motion number		Mainshock (m/s^2)			Seismic sequence (m/s^2)
		Fixed-base	Base-isolated	DAR	Fixed-base	Base-isolated	DAR
(1)	1.219	17.04	1.33	92.2%	17.04	1.36	92.0%
(2)	1.039	14.30	2.26	84.2%	16.65	2.26	86.5%
(3)	0.523	18.68	2.28	87.8%	18.68	2.28	87.8%
(4)	0.430	7.91	1.21	84.7%	7.91	1.21	84.7%
(5)	1.215	11.29	0.81	92.8%	11.29	0.81	92.8%
(6)	1.845	14.69	1.52	89.6%	20.89	2.13	89.8%
(7)	0.974	14.02	1.04	92.6%	14.02	1.04	92.6%
(8)	0.888	13.05	0.79	93.9%	13.25	0.79	94.0%
(9)	0.934	17.18	2.86	83.3%	17.18	2.86	83.3%
(10)	0.923	16.61	3.23	80.5%	16.61	3.23	80.5%
(11)	1.078	4.59	1.67	63.6%	8.19	1.67	79.6%
(12)	1.811	8.85	1.53	82.7%	20.39	3.46	83.1%
(13)	0.883	12.71	1.46	88.5%	12.71	1.46	88.5%
(14)	1.318	11.55	0.89	92.3%	17.08	1.28	92.5%
(15)	1.341	14.21	4.65	67.3%	17.54	4.65	73.5%
(16)	0.938	13.99	3.77	73.1%	14.98	3.77	74.9%
(17)	0.667	15.85	2.16	86.4%	15.85	2.16	86.4%
(18)	0.577	14.15	2.25	84.1%	14.15	2.25	84.1%
(19)	1.285	13.83	1.19	91.4%	13.89	1.33	90.4%
(20)	0.763	10.47	0.89	91.5%	10.47	0.89	91.5%
Average	1.033	13.25	1.89		14.93	2.04