Abstract
It is necessary that bridge foundation remains elastic even under a large earthquake to guarantee the rehabilitation of the structure. RC piles using the high-strength concrete and rebars, and prestress technology has been developed to increase the lateral capacity of pile foundation. The carbon fiber sheets are attached on the proposed RC pile in order that the cover concrete can contribute to increasing the flexural capacity. The static and cyclic bending test are conducted to investigate the structural performance of RC piles. In addition, full scale cyclic loading tests of proposed pile embedded into the ground are conducted. Based on the comparison with the behavior of conventional concrete pile, the proposed pile subjected to higher lateral load could remain elastic. It is possible to evaluate the seismic performance of the proposed pile using the conventional methods of structural analysis for concrete piles.
