S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Architecture and Architectural Engineering (건축학과) Journal Papers (저널논문_건축학과)
인장-압축상태의 철근콘크리트 면 부재를 위한 미소면 모델 : Microplane Model for RC Planar Members in Tension-Compression
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- Issue Date
- 한국콘크리트학회 = Korean Concrete Institute
- 한국콘크리트학회 논문집 제13권 제4호, 2001, pp. 379-388
- microplane model ; planar member ; strain boundary ; finite element analysis ; 미소면 모델 ; 면 부재 ; 변형률한계 ; 유한요소해석
- Existing microplane models for concrete use three-dimensional spherical microplanes in the analysis of two-dimensional planar members as well as three-dimensional members. Also, they do not accurately describe the post-cracking behavior of reinforced concrete in tension-compression. In this study, a new microplane model is developed to overcome the disadvantages of the existing models. Instead of the spherical microplanes, the proposed microplane model uses disk microplanes involving a less number of microplanes and two-dimensional stresses and strains. As the result, the proposed model is more effective in numerical calculations. Also, the concept of the strain boundary is introduced to describe accurately the compressive behavior of reinforced concrete with tensile cracks in tension-compression. The validity of the proposed model is verified by comparison with existing experiments. In this paper, the microplane model and the numerical techniques involved in the finite element analysis are described in detail.
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