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Advances in Civil Engineering
/
2020
/
Article
/
Fig 9
/
Research Article
A New Method to Calculate Additional Damping Ratio considering the Effect of Excitation Frequency
Figure 9
ADR (
ζ
sd
) vs. frequency ratio (Ω/
ω
): (a)
α
= 0.30; (b)
α
= 0.50; (c)
α
= 0.70; (d)
α
= 0.90.
(a)
(b)
(c)
(d)