Nonlinear Regression Based Health Monitoring of Hysteretic Structures under Seismic Excitation

Table 1

Selected 20 ground motions.

EQ	Event	Year		Station	-distance (km)	Soil type	Duration (s)	PGA (g)
EQ1	Superstition Hill	1987	6.7	EI Centro Imp. Co. Cent	13.9	D	40.0	0.358
EQ2				Brawley	18.2	D	22.0	0.156
EQ3				Plaster City	21.0	D	22.2	0.121
EQ4	Northridge	1994	6.7	Beverly Hills 14145 Mulhol	19.6	C	30.0	0.516
EQ5				Canoga Park-Topanga Can	15.8	D	25.0	0.356
EQ6				Glendale-Las Palmas	25.4	D	30.0	0.206
EQ7				LA-Hollywood Stor. FF	25.5	D	40.0	0.231
EQ8				N. Hollywood-Coldwater Can	14.6	C	21.9	0.273
EQ9				LA-N Faring Rd	23.9	D	30.0	0.298
EQ10				Sunland-Mt Gleason Ave	17.7	C	30.0	0.127
EQ11	Loma Prieta	1989	6.9	Capitola	14.5	D	40.0	0.529
EQ12				Gilroy Array #3	14.4	D	39.9	0.555
EQ13				Gilroy Array #4	16.1	D	40.0	0.417
EQ14				Gilroy Array #7	24.2	D	40.0	0.226
EQ15				Hollister Diff. Array	25.8	D	39.6	0.269
EQ16				Saratoga-W Valley Coll.	13.7	C	40.0	0.332
EQ17	Cape Mendocino	1992	7.1	Fortuna-Fortuna Blvd	23.6	C	44.0	0.116
EQ18				Rio Dell Overpass-FF	18.5	C	36.0	0.171
EQ19	Landers	1992	7.3	Desert Hot Springs	23.3	C	50.0	0.385
EQ20				Yermo Fire Station	24.9	D	44.0	0.245