PROPOSITION OF NEW GRAVITY-TYPE PIER AND EVALUATION OF ITS ASEISMIC PERFORMANCE

Abstract

 In this paper, we conducted a model test in 1g gravitation field and numerical analysis about seismic behavior of proposed gravity-type pier for deepwater quay wall. The performance of proposed pier is compared with that of conventional type. This proposed pier has the hybrid type structure, in which a superstructure to a substructure with steel pipe piles on base mound, it resists an inertial force and earth pressure during earthquakes by its self-weight. From results, the seismic stability of this proposed pier is confirmed, and seismic behavior of steel pipe piles can be simulated by effective stress analysis FLIP.