| "A battered pipe pile foundation has excellent sustaining capacity for horizontalloads. However the seismic lateral strength and ductility of the battered pile under a largehorizontal load have not yet been clarified for highway bridge foundation in Japan. In thepresent study, loading tests for coupled battered piles are performed, and seismic lateralstrength and ductility is evaluated in comparison with the previous tests for coupledvertical piles. As a result, it was verified that coupled battered piles have larger lateralstiffness than coupled vertical piles at the initial loading stage, and the maximum strengthof coupled battered piles is larger than that of coupled vertical piles. In addition, if theallowable displacement for the lateral strength is evaluated as the displacement atmaximum strength δPmax , ductility factor ? = 4.5 ? 5.0 is evaluated." |
