리모델링시 압축부재의 하중분담률에 따른 기존 콘크리트부재의 거동 분석 연구

When the existing building was remodeled, additional structural performance would be need in order to resist the increased load due to the vertical extension and the deterioration of materials. Compression members such as columns are very large impact on the stability of the building compared to the flexural members such as beam. Therefore, the strengthening of compression members should be performed prior to remodeling. Concrete jacketing method is a process of pouring new concrete on the outside of an existing member. It is effective for increasing strength and stiffness and ductility. In this study, the behavior of concrete jacketed column according to load distribution ratio was analyzed. The result show that, the load distribution ratio influence maximum strength and initial stiffness.