전단경간비가 작은 철근콘크리트 보의 휨-전단 상관 관계Flexure-Shear Interaction of Reinforced Concrete Beams with Small Shear Span-Depth Ratios
- Authors
- 양근혁; 이영호; 은희창; 정헌수
- Issue Date
- Apr-2003
- Publisher
- 대한건축학회
- Keywords
- flexure-shear interaction; shear span-to-depth ratio(a/d); strut and tie action; relative flexural capacity ratio; flexure-shear interaction; shear span-to-depth ratio(a/d); strut and tie action; relative flexural capacity ratio; 휨-전단 상관관계; 전단경간비; 스트럿-타이작용; 상대 휨 강도비
- Citation
- 대한건축학회논문집 구조계, v.19, no.4, pp 19 - 26
- Pages
- 8
- Journal Title
- 대한건축학회논문집 구조계
- Volume
- 19
- Number
- 4
- Start Page
- 19
- End Page
- 26
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/65703
- ISSN
- 1226-9107
- Abstract
- There have been a number
of experimental and theoretical investigations to establish a flexural-shear interaction model of reinforced concrete beam without shear reinforcements. Their researches were confined to normal beam of shear span-to-depth ratio (a/d) greater than 1.0. In these models, the relative flexural capacity ratio have been proposed by 1.0 in range a/d≤1.0. However, the mechanical behavior of reinforced concrete beam that a/d is small is significantly governed by the shear rather than the flexure. Therefore, the purpose of this study is that present flexure-shear interaction model to grasp reduction of flexural capacity by effect of shear in beam that a/d is less than 1.2. Based on the existing experimental results, it was observed that the relative flexural capacity ratio decreases with the decrease in the a/d unlike the other models. Also, considering the strut and tie action of short beam, a flexure-shear interaction model of short beam was proposed as a function of a/d, fck, ρ, fy, and h. Comparison with experimental results illustrated the validity of the proposed model.
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