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Table 4 Vibration periods in the transverse direction (Unit: s)

From: Damage control of a twin-column pier with a replaceable steel shear link in a cap beam under transverse seismic motion

Model

1st mode

2nd mode

O1

0.599

0.443

30C

0.604

0.445

8C

0.611

0.447

30D

0.627

0.459

8D

0.635

0.461