Quantitative Definition of Seismic Performance Levels for Precast Bridge Piers with Continuous Reinforcement

Table 1

Performance requirements in CHBDC codes (CAN/CSA-S6-06).

Return period	Bridge
	Lifeline (type III)	Emergency route (type II)	Others (type I)
Small to moderate earthquake (100-year RP)	All traffic; Immediate use	All traffic; Immediate use	All traffic; Immediate use
Design earthquake (500-year RP)	All traffic; Immediate use	Emergency vehicles; Immediate use	Repairable damage
Large earthquake (2500-year RP)	Emergency vehicles; Immediate use	Repairable damage	No collapse