Recently, there is to increase interest in seismic performance of piers. Hollow section is applied to increasing the seismic performance of piers. However, hollow RC pier becomes the biaixial confining state because hollow part is not confined. The pier is developed brittle failure from inner face in hollow part. A tube is inserted in hollow part to become the weakness. This is ICH RC(Internally Confined Hollow RC) pier. This pier is enhanced stiffness, strength, and ductility by core concrete has triaxial confining stress. In this paper is researched about parameters effect the seismic performance. Parameters are hollow ratio, transverse reinforcement, longitudinal reinforcement, and concrete strength.

• 원덕희(한국해양과학기술원 연안개발에너지연구부 연수 연구원) | Won, Deok-Hee
• 한택희(한국해양과학기술원 연안개발에너지연구부 선임 연구원) | Han, Taek-Hee
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• 강영종(고려대학교 건축사회환경공학과 교수) | Kang, Young-Jong 교신저자