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일방향 보이드 슬래브의 유효단면적 크기에 따른 전단 성능 및 일체화 여부에 따른 보강근의 성능에 관한 평가
이혜정 ( Lee Hyejeong ),조승호 ( Cho Seungho ),임명관 ( Lim Myungkwan ),이종식 ( Lee Jongsik ),이동하 ( Lee Dongha ),노영숙 ( Roh Young-sook ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.1
Void slab is a slab with hollow portions in the center of the slab which reduce a self weight of the slab. The flexural capacity of void slab is almost same with a normal slab, but the shear capacity is reduced according to the increasing of hollow portion. One of the solutions to improve shear capacity is using shear reinforcing bars. In this study, the shear capacity of one-way void slabs is evaluated according to an effective cross section and the capacity of shear reinforcing bars is discussed depending on integration method. As a result, it is shown that the shear capacity tends to be reduced from 0% to 34.5% of hollow rate and slightly increased from 34.5% to 40.0%. And the capacity of integrated shear reinforcing bars are better than the one without integrated shear reinforcing bars.