Seismic Design of Bridges against Near-Fault Ground Motions Using Combined Seismic Isolation and Restraining Systems of LRBs and CDRs

Table 1

Earthquake risk levels for PGA.

Specification	E1 (small earthquake)	Design earthquake (medium earthquake)	E2 (rare earthquake)
Guidelines for seismic design of highway bridge (JTG/TB02-01-2008)	0.2 g	0.4 g	0.68 g
Code for seismic design of urban bridge (CJJ166-2011)	0.24 g	0.4 g	0.62 g
Code for seismic design of buildings (GB50011-2010)	0.14 g	0.4 g	0.62 g
Code for seismic design of urban rail transit structures (GB50909-2014)	0.14 g	0.4 g	0.62 g
Code for seismic design of railway engineering (GB50111-2006, 2009 local revised edition)	0.16 g	0.4 g	0.64 g

Note. Importance coefficient has been corrected according to the situation of this bridge.