충전콘크리트와 중공PC콘크리트의 강도비에 따른 HPC 복합 기둥의 압축강도 변화

In this paper, an experimental study was performed to evaluate the compressive strength of hollow PC column filled with grout concrete in accordance with their compressive strength. As a result, even if the strength of PC element increased, there was not an increase of initial crack strength. However it was found that ultimate strength and displacement increased. It was shown that the final failures of the hollow PC columns were governed by the compressive strength of PC element.