Shaking Table Model Test and Seismic Performance Analysis of a High-Rise RC Shear Wall Structure
Table 7
Dynamic characteristic of the model before and after the earthquake excitation.
Earthquake intensity
Test items
Y
Torsion
X
1st order
2nd order
3rd order
1st order
2nd order
3rd order
Before earthquake
Frequency (Hz)
2.54
12.11
29.41
7.62
21.30
3.71
Period (s)
0.3937
0.0826
0.0340
0.1312
0.0469
0.2695
Damping ratio (%)
3.25
2.61
2.12
2.36
Frequent 6
Frequency (Hz)
2.54
12.11
29.21
7.62
21.10
Period (s)
0.3937
0.0826
0.0342
0.1312
0.0474
Damping ratio (%)
4.41
2.71
2.83
Moderate 6
Frequency (Hz)
2.54
11.92
28.72
7.52
20.91
Period (s)
0.3937
0.0839
0.0348
0.1330
0.0478
Damping ratio (%)
4.20
3.04
3.37
Rare 6
Frequency (Hz)
2.44
11.33
27.75
7.30
19.93
Period (s)
0.4098
0.0883
0.0360
0.1370
0.0502
Damping ratio (%)
4.01
3.11
3.35
Rare 7
Frequency (Hz)
2.34
10.75
6.84
18.66
Period (s)
0.4274
0.0930
0.1462
0.0536
Damping ratio (%)
3.87
3.80
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