단부 파쇄 후 수직철근 보강공법이 적용된 2층 철근콘크리트 구조벽체의 휨 거동 특성

초록

The purpose of this study is to evaluate the flexural behavior of flexural retrofitted shear walls connected to slabs retrofitted with verticalrebar after wall end crushing. The main variable was the application of the flexural retrofit method. The evaluation of the effect of the shearstuds when the retrofit method was applied was intentionally constructed with 60% of the actual required number. As a result of thisexperiment, it was possible to confirm the strength increase of about 56% with the flexural retrofit. As suggested in the previous study, theretrofitted wall and the existing wall exhibited partial composite behavior, which resulted in the deformation of the slab and the phenomenonof the concrete covering falling off. Double curvature appeared as a strain on the upper part of the wall when it was reversed. The partwhere the moment was reversed appeared to be the upper part of the wall and not the center. It was confirmed that the damage to the slabwas greater when the joint section of the existing wall and the new wall were subjected to tension. Additionally, it was judged that thisshould be considered when designing the retrofit of the slab and the shear wall.

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