실험에서는 스틸밴드로 외부보강된 철근콘크리트 부재의 부착강도에 관한 연구를 진행하였으며 총 9개의 실험체를 제작하여 인발 실험을 실시하였다.실험결과 스틸밴드의 수와 초기응력의 증가에 따라 부착강도는 증가하는 것으로 나타났다. 이것은 스틸밴드에 의해 가해지는 긴장력으로부터 철근과 콘크리트간 횡방향에 의한 구속력 증가로 판단된다. 변수로한 실험결과들을 통하여 스틸밴드로 외부보강된 철근콘크리트 부재에 관한 부착강도 산정식을 검토하였다.

In this Study, Manufacturing 9 Specimens objects for the experiment, the attaching strength between concrete and each reinforcing rod has been reviewed with variables like the different binding effect depending on the number of primary root, concrete-installing direction, location of primary root, and binding power loaded to steel band. The last destructed phase of experimented objectives and their attaching strengths between concrete and reinforcing rod have been evaluated.

This study revealed that seismic retrofit technology which has to conduct seismic retrofit work after removing facing walls from a reinforced concrete structured building constructed with masonry walls and facing walls, bears disadvantages of additional costs both for removal of facing walls and for brick masonry and possibility to incur the secondary damage from collapse of facing walls. Therefore, this study aims to develop a seismic retrofit technique and examines its performance which can yield sufficient seismic retrofit effect without additional retrofit of facing walls by forming a pile-bent reinforced concrete walls with facing walls after removing masonry walls.