Research Article
A New Method to Calculate Additional Damping Ratio considering the Effect of Excitation Frequency
Table 2
Information on the considered earthquake records.
| | Name | Location | Year | M s | Station | PGA (g) | Ωm | ζ sd (α = 1) |
| | KEAT | Kern County | 1952 | 7.4 | Athenaeum | 0.048 | 6.81 | 14.06 | | SATI | Northridge | 1966 | 6.7 | Saticoy | 0.341 | 7.97 | 14.15 | | KEHO | Kern County | 1952 | 7.4 | Hollywood | 0.042 | 8.34 | 15.52 | | NEWH | Northridge | 1994 | 6.4 | Newhall | 0. 590 | 9.00 | 15.93 | | ELCE | Imperial Valley | 1940 | 7.0 | El Centro | 0.348 | 11.20 | 16.97 | | TAFT | Kern County | 1952 | 7.4 | Taft | 0.159 | 11.22 | 18.26 | | TABA | Tabas | 1978 | 7.4 | Tabas | 0.854 | 12.16 | 17.95 | | IRAR | Irpinia | 1980 | 6.9 | Arienzo | 0.027 | 12.99 | 18.08 | | IRAU | Irpinia | 1980 | 6.9 | Auletta | 0.055 | 14.79 | 19.01 | | MACO | Mammoth | 1980 | 5.7 | Convict Creek | 0.178 | 14.90 | 18.98 |
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