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

Table 12

Performance criteria for the proposed control systems under near-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	0.8681	0.8236	0.8237	0.8786	0.8785	0.8497	0.8549	0.8645	0.8731	0.8830
	TMD	0.9559	0.9458	0.9320	1.0034	1.0156	1.0035	0.9861	0.9775	0.9681	0.9640
	MR + TMD	0.7869	0.7758	0.7832	0.8458	0.8623	0.8469	0.8466	0.8498	0.8583	0.8639
	MR	0.9984	1.0051	1.0128	0.9941	0.9938	0.9985	0.9986	0.9975	1.0058	1.0206
	TMD	0.9630	0.9834	0.9891	0.9925	0.9917	0.9956	0.9958	0.9956	0.9985	0.9996
	MR + TMD	0.9549	0.9707	0.9932	0.9784	0.9838	0.9962	0.9907	0.9925	1.0012	1.0167
	MR	0.3087	0.4276	0.4745	0.4932	0.4584	0.4369	0.4156	0.4033	0.4065	0.4150
	TMD	0.9417	0.9531	0.9970	0.9940	0.9944	0.9964	0.9972	1.0007	1.0001	0.9992
	MR + TMD	0.2772	0.3995	0.4614	0.4751	0.4408	0.4259	0.4097	0.3960	0.4025	0.4066
	MR	0.2444	0.3564	0.4233	0.5175	0.5732	0.6116	0.6363	0.6556	0.6725	0.6858
	TMD	0.9424	0.9458	0.9683	0.9920	0.9914	0.9894	0.9870	0.9868	0.9896	0.9903
	MR + TMD	0.2172	0.3372	0.4098	0.5093	0.5694	0.6093	0.6292	0.6474	0.6626	0.6800
	MR	0.8400	0.7919	0.8636	0.8401	0.8198	0.7497	0.7072	0.7120	0.7316	0.7671
	TMD	0.8295	0.8565	0.8592	0.8918	0.9525	1.0556	1.0175	0.9827	0.9563	0.9472
	MR + TMD	0.6154	0.6364	0.7172	0.7397	0.7504	0.7172	0.6987	0.7112	0.7270	0.7521
	MR	1.0084	0.9903	0.9966	1.0077	1.0037	1.0048	1.0052	1.0058	1.0093	1.0161
	TMD	0.8737	0.9196	0.9443	0.9669	0.9371	0.9816	0.9851	0.9869	0.9882	0.9892
	MR + TMD	0.8523	0.8918	0.9425	0.9704	0.9780	0.9844	0.9888	0.9924	0.9972	1.0043
	MR	0.2804	0.3288	0.3647	0.3895	0.3869	0.3808	0.3748	0.3739	0.3723	0.3712
	TMD	0.8236	0.8687	0.8934	0.9336	0.9038	0.9565	0.9603	0.9633	0.9657	0.9677
	MR + TMD	0.2183	0.2788	0.3309	0.3594	0.3638	0.3572	0.3562	0.3571	0.3568	0.3558
	MR	0.1808	0.2935	0.3720	0.4405	0.4669	0.4860	0.5142	0.5487	0.5966	0.6395
	TMD	0.8226	0.8665	0.8964	0.9313	0.9082	0.9660	0.9740	0.9746	0.9689	0.9591
	MR + TMD	0.1481	0.2558	0.3479	0.4176	0.4542	0.4846	0.5124	0.5530	0.5958	0.6376