Seismic Design Method for Pile Foundation

Jiro FUKUI

Public works Research Institute, Japan

2 Level Seismic Load

• Ground motion highly probable to occur during service period of bridge (Level ⅠSeismic Load)

• Ground motion with high intensity , though less probable to occur during service period of bridge (Level Ⅱ Seismic Load)

→ 　 Seismic Coefficient Method

→ 　 Ductility Design Method

Analytical Model of Pile Foundation

Analytical Model of Pile FoundationSeismic Coefficient Method

Ductility Design MethodAnalytical Model of Pile Foundation

Effects of Group Piles

Effects of Group Piles