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
		1^st order	2^nd order	3^rd order	1^st order	2^nd order	3^rd 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