Survey on Major Worldwide Regulations on Seismic Base Isolation of Buildings

Table 12

Drift limits in the superstructure in the Chinese code [20].

Type of structure	Frequent earthquake	Maximum earthquake
Concrete frame	1/550	1/50
Concrete frame with structural walls	1/800	1/100
Tube in tube	1/1000	1/120
Steel structures	1/300	1/50