Survey on Major Worldwide Regulations on Seismic Base Isolation of Buildings

Table 6

Parameter α_max of the Chinese code [20].

Hazard level	Intensity
	6	7	8	9
Frequent earthquake	0.04	0.08–0.12	0.16–0.24	0.32
Design earthquake	0.05	0.10–0.15	0.20–0.30	0.40
Maximum earthquake	0.28	0.50–0.72	0.90–1.20	1.40