Research Article
Estimation of Modal Properties of Low-Rise Buildings Using Ambient Excitation Measurements
Table 2
Comparison of the damping ratios estimated using the two approaches.
| | Floor number | Mode 1 | Mode 2 | Damping
(two-step) | Damping
(RD only) | Difference
(%) | Damping
(two-step) | Damping
(RD only) | Difference
(%) |
| | 1 | 2.011 | 1.875 | 6.8 | 3.929 | 4.333 | 10.3 | | 2 | 2.111 | 1.932 | 8.0 | 3.581 | 3.650 | 1.9 | | 3 | 1.986 | 2.051 | 3.3 | 3.468 | 3.250 | 6.3 | | 4 | 2.600 | 2.805 | 8.5 | 3.495 | 3.533 | 1.1 |
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