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 (%)

= 9.58811.096 = 15.73110.965 = 14.35610.976 = 14.475
= 9.97111.895 = 19.29411.452 = 14.84910.976 = 10.077
= 14.47615.331 = 5.90515.105 = 4.34214.932 = 3.147
= 29.81430.590 = 2.60329.919 = 0.35529.284 = 1.778
= 30.77530.904 = 0.42030.479 = 0.96330.447 = 1.065
= 43.33539.101 = 9.77038.139 = 11.99036.915 = 14.815
= 27.514 = 24.295 = 23.340