Mode

Source

type Para.

(1)

Chi-Chi Earthquake

(2)

Typhoon Aere

(3)

Ambient Vibrations

(4)

Building Code(2001)

1^st NS

f₁

0.247

0.255 ± 0.009

0.267 ± 0.009

0.217

2^nd NS

f₃

0.590

0.614 ± 0.018

0.644 ± 0.009

3^rd NS

f₅

1.060

1.117 ± 0.017

1.148 ± 0.011

1^st NS

δ₁

13.82

17.51

23.04