Abstract
The present technical standard for pier design in Japan employs seismic coefficient method against level 1 earthquake; especially for aseismic reinforced facilities, it adopts dynamic nonlinear effective stress analysis against level 2 earthquake. The simple frame structure analysis for level 1 earthquake covers inertial force on superstructure of pier. However, it cannot precisely deal with forces acting on steel pipe piles under foundation deformation due to intense seismic motion like level 2 earthquake. This fundamental study is to clarify the applicability of elasto-plastic frame analysis for simple seismic performance design of open-type wharf. This paper conducted two-dimensional dynamic effective stress analysis by FLIP model with a white noise seismic ground motion. This study also utilized the elasto-plastic frame analysis for calculation of bending moment along the steel pipe piles of the pier analyzed in the FLIP model.
