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Shock and Vibration
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Shock and Vibration
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2015
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Article
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Tab 5
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Research Article
Modal Parameters Estimation of Building Structures from Vibration Test Data Using Observability Measurement
Table 5
Identified modal frequencies and damping ratios for Case
.
Mode
Modal frequency (Hz)
Modal damping ratio (%)
1st mode
0.900
0.50
2nd mode
2.522
1.40
3rd mode
3.644
2.03