Research Article
Identification of Torsionally Coupled Shear Buildings Models Using a Vector Parameterization
Table 10
Estimated natural frequencies of the two-story reduced model.
| Natural frequency (rad/s) | Estimate with | Error (%) | Estimate with | Error (%) | Estimate with | Error (%) |
| = 9.588 | 11.096 | = 15.731 | 10.965 | = 14.356 | 10.976 | = 14.475 | = 9.971 | 11.895 | = 19.294 | 11.452 | = 14.849 | 10.976 | = 10.077 | = 14.476 | 15.331 | = 5.905 | 15.105 | = 4.342 | 14.932 | = 3.147 | = 29.814 | 30.590 | = 2.603 | 29.919 | = 0.355 | 29.284 | = 1.778 | = 30.775 | 30.904 | = 0.420 | 30.479 | = 0.963 | 30.447 | = 1.065 | = 43.335 | 39.101 | = 9.770 | 38.139 | = 11.990 | 36.915 | = 14.815 | | | = 27.514 | | = 24.295 | | = 23.340 |
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