Study on Passive and Semiactive Control Systems in Structures under Near- and Far-Field Earthquakes

Table 11

Performance criteria for the proposed control systems under near-field earthquakes: reduced stiffness in the 1st–5th stories.

		PGA (g)
		0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
	MR	0.9001	0.8625	0.8512	0.8845	0.9096	0.8719	0.8794	0.8837	0.8925	0.9063
	TMD	0.9618	0.9464	0.9416	0.9779	1.0128	1.0015	0.9862	0.9733	0.9660	0.9712
	MR + TMD	0.8258	0.8135	0.8044	0.8588	0.8980	0.8714	0.8724	0.8697	0.8719	0.8805
	MR	0.9966	0.9814	1.0137	0.9947	0.9859	0.9844	0.9846	0.9890	0.9987	1.0112
	TMD	0.9785	0.9751	0.9943	0.9921	0.9985	0.9959	0.9967	0.9959	0.9977	0.9979
	MR + TMD	0.9683	0.9620	1.0053	0.9931	0.9814	0.9782	0.9765	0.9842	0.9939	1.0080
	MR	0.2736	0.3949	0.4632	0.4864	0.4530	0.4154	0.4100	0.4101	0.4117	0.4117
	TMD	0.9375	0.9445	0.9826	0.9976	0.9914	0.9945	0.9946	0.9966	0.9980	0.9992
	MR + TMD	0.2523	0.3776	0.4495	0.4759	0.4377	0.4097	0.4041	0.4091	0.4086	0.4079
	MR	0.2968	0.3977	0.4682	0.5722	0.6171	0.6350	0.6498	0.6709	0.6882	0.7012
	TMD	0.9438	0.9456	0.9684	0.9832	0.9925	0.9913	0.9879	0.9875	0.9866	0.9900
	MR + TMD	0.2642	0.3756	0.4538	0.5659	0.6133	0.6310	0.6431	0.6610	0.6767	0.6918
	MR	0.8887	0.8296	0.8577	0.8245	0.8271	0.7987	0.7681	0.7533	0.7775	0.8102
	TMD	0.8350	0.8527	0.8724	0.8834	0.9554	1.0363	1.0037	0.9691	0.9498	0.9541
	MR + TMD	0.6614	0.6747	0.7284	0.7217	0.7225	0.7706	0.7447	0.7472	0.7580	0.7902
	MR	0.9816	0.9511	0.9750	0.9976	1.0036	1.0031	1.0012	1.0039	1.0076	1.0115
	TMD	0.8801	0.9181	0.9424	0.9692	0.9397	0.9837	0.9866	0.9885	0.9896	0.9905
	MR + TMD	0.8225	0.8499	0.9120	0.9547	0.9338	0.9793	0.9829	0.9893	0.9957	1.0015
	MR	0.2374	0.2950	0.3304	0.3552	0.3585	0.3506	0.3500	0.3504	0.3538	0.3541
	TMD	0.8322	0.8687	0.8913	0.9319	0.9084	0.9539	0.9597	0.9643	0.9676	0.9710
	MR + TMD	0.1957	0.2549	0.3027	0.3343	0.3256	0.3335	0.3352	0.3385	0.3433	0.3451
	MR	0.2390	0.3246	0.4001	0.4620	0.4935	0.5152	0.5519	0.5917	0.6423	0.6833
	TMD	0.8307	0.8648	0.8975	0.9260	0.9033	0.9622	0.9707	0.9666	0.9609	0.9644
	MR + TMD	0.1912	0.2790	0.3728	0.4352	0.4550	0.4978	0.5371	0.5885	0.6388	0.6765