Experimental Investigations of the Seismic Performance of a Base-Isolated Uninterruptible Power Supply (UPS) through Shaking Table Tests

Table 6

Peak displacement at tops and bottoms of the UPS test specimens.

Specimens		Scaling factor (%)	Relative displacement (mm)
			Top		Bottom
			X-dir.	Y-dir.	X-dir.	Y-dir.
Series A	4A	50	1.05	0.75	1.04	0.67
	5A	100	2.89	1.25	1.05	1.01
	9A	200	8.38	2.55	1.53	1.43
Series B	4B	50	5.25	8.77	2.45	4.98
	5B	100	20.01	27.61	7.55	17.73
	9B	200	97.45	84.61	29.45	47.06