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

Table 8

Performance criteria for the proposed control systems under far-field earthquakes: reduced stiffness in the 1st story.

		PGA (g)
		0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0
	MR	0.8599	0.8150	0.8067	0.8394	0.8556	0.8698	0.8534	0.8372	0.8471	0.8646
	TMD	0.8428	0.8449	0.8674	0.9070	0.9236	0.9604	0.9748	0.9730	0.9609	0.9508
	MR + TMD	0.7225	0.7142	0.7360	0.7750	0.8051	0.8298	0.8286	0.8257	0.8355	0.8409
	MR	1.0507	1.0391	1.0250	1.0238	1.0205	1.0129	1.0130	1.0133	1.0114	1.0090
	TMD	0.9799	0.9836	0.9893	1.0002	1.0039	0.9997	0.9999	0.9993	0.9977	0.9972
	MR + TMD	1.0125	1.0073	1.0098	1.0170	1.0218	1.0142	1.0136	1.0131	1.0101	1.0072
	MR	0.3064	0.3152	0.3535	0.3841	0.4215	0.4328	0.4405	0.4468	0.4578	0.4482
	TMD	0.8872	0.8969	0.9496	0.9695	0.9968	0.9913	0.9894	0.9878	0.9942	0.9824
	MR + TMD	0.2583	0.2720	0.3260	0.3528	0.3936	0.4167	0.4253	0.4387	0.4460	0.4362
	MR	0.1841	0.2339	0.2774	0.3057	0.3381	0.3572	0.3661	0.3754	0.3920	0.4103
	TMD	0.8802	0.8876	0.9330	0.9606	0.9841	0.9961	0.9851	0.9839	0.9720	0.9724
	MR + TMD	0.1556	0.1928	0.2451	0.2708	0.3167	0.3399	0.3512	0.3663	0.3853	0.3958
	MR	0.9067	0.8291	0.7416	0.7466	0.7645	0.7759	0.7620	0.7557	0.7563	0.7764
	TMD	0.7416	0.7500	0.7520	0.7949	0.8268	0.8826	0.9012	0.9080	0.9100	0.9039
	MR + TMD	0.5911	0.5850	0.5686	0.5974	0.6199	0.6683	0.6730	0.6746	0.6907	0.7167
	MR	1.0748	1.0249	0.9834	0.9887	0.9937	0.9946	0.9976	1.0119	1.0020	1.0043
	TMD	1.0194	1.0248	1.0349	1.0615	1.0576	1.0864	1.0909	1.0943	1.0979	1.1015
	MR + TMD	0.9447	0.9342	0.9296	0.9494	0.9450	0.9806	0.9865	0.9905	0.9939	0.9967
	MR	0.2954	0.2811	0.2706	0.2898	0.3164	0.3370	0.3529	0.3635	0.3677	0.3715
	TMD	0.7752	0.7863	0.8033	0.8485	0.8769	0.9141	0.9261	0.9346	0.9457	0.9547
	MR + TMD	0.2073	0.2123	0.2246	0.2469	0.2725	0.3021	0.3193	0.3316	0.3400	0.3455
	MR	0.1406	0.1690	0.1851	0.2171	0.2505	0.2783	0.3025	0.3211	0.3368	0.3633
	TMD	0.7666	0.7768	0.7897	0.8358	0.8661	0.9044	0.9182	0.9266	0.9341	0.9392
	MR + TMD	0.0973	0.1205	0.1487	0.1808	0.2123	0.2462	0.2703	0.2894	0.3102	0.3346