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전단철근이 없는 철근콘크리트 깊은 보의 스트럿-타이 모델에서 스트럿의 유효강도계수 평가An Evaluation of Effective Strength Factor of Strut in Strut-Tie Modeling of Reinforced Concrete Deep Beams without Shear Reinforcement
- Issue Date
- Jan-2003
- Publisher
- 대한건축학회
- Keywords
- deep beam; strut-and-tie model; effective strength factor; shear span-to-overall depth ratio; size effect; deep beam; strut-and-tie model; effective strength factor; shear span-to-overall depth ratio; size effect; 깊은 보; 스트럿-타이 모델; 유효강도계수; 전단경간비; 크기효과
- Citation
- 대한건축학회논문집 구조계, v.19, no.1, pp 21 - 28
- Pages
- 8
- Journal Title
- 대한건축학회논문집 구조계
- Volume
- 19
- Number
- 1
- Start Page
- 21
- End Page
- 28
- ISSN
- 1226-9107
- Abstract
- The internal stress state of deep beam can be represented by strut-and-tie models of compression struts between the loading points and the supports. In the modeling, the effective strength factor stands for the magnitude of the strength deterioration of compression strut due to the effect of cracking and softening. The objective of this study is to quantitatively evaluate the effective strength factor of concrete strut in reinforced concrete deep beam without shear reinforcements for various variables. Twenty reinforced concrete deep beams were tested under two-point top loading. Main variables considered in this study are concrete strength(f_ck
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