S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Architecture and Architectural Engineering (건축학과) Journal Papers (저널논문_건축학과)
면내 압축력 및 면외 바닥하중을 받는 플랫 플레이트 슬래브
RC Flat Plate Subject to Combined In-Plane Compressive and Out-of-Plane Floor Loads
- Issue Date
- 한국콘크리트학회 = Korean Concrete Institute
- 한국콘크리트학회지, 제11권 제1호, pp. 231-242
- axial compression; finite element analysis; flat plate; reinforced concrete; slenderness; two way slab
- This paper presents a numerical study on the flat plates in deep basements, subjected to out-of-plane floor load and in-plane compressive load due to soil and hydraulic lateral pressure. For nonlinear finite element analysis, a computer program addressing material and geometric nonlinearities is developed. The validity of the numerical model is established by comparison with existing experiments performed on plates simply supported on four edges. The flat plates to be studied are designed according to the Direct Design Method in Korean Building Code for Structural Concrete. Through numerical study on the effects of different load combinations and loading sequence, the load condition that governs the strength of the flat plates is determined. For the plates under the governing load condition, parametric studies are performed to investigate variations of the strength with reinforcement ratio, aspect ratio, concrete strength, and slenderness ratio. Based on the numerical results, the floor load magnification factor is proposed.