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부식된 인장철근을 갖는 철근콘크리트 보의 전단강도 모델 KCI 등재

Shear Capacity Model for Reinforced Concrete Beams with Corroded Tensile Reinforcing Bars

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한국대공간건축 논문집(구 한국공간구조학회지) (Korean Journal of Spatial Architecture)
한국공간구조학회 (Korean Association for Spatial Structures)
초록

This study introduces an anlytical model for estimating shear strengths of reinforced concrete (RC) members with corroded tensile reinforcing bars. The bond strength model for corroded reinforcing bars developed in the previous study was extended for shear analysis. A force equilibrium condition between adjacent cracks was established considering the bond mechanism of reinforcing bars, through which the shear contributions of aggregate interlock in cracked tension zone and uncracked concrete in compression zone were quatitatively determined. In addition, a bond failure criterion was introduced in the shear analysis model, such that bond failure owing to insufficient bond strength caused by corrosion can be reflected. The proposed model was verified in detail through comprehensive comparison with existing shear test results of corroded RC beams. Consequently, it appeared that the proposed model closely captured the change in shear capacity with respect to the degree of corrosion with a good accuracy.

목차
Abstract
1. 서론
2. 부식된 RC 부재 전단해석 모델
    2.1 부식된 철근의 부착강도
    2.2 전단 해석 모델
    2.3 해석 알고리즘
3. 해석모델의 검증
4. 결론
감사의 글
References
저자
  • 한선진(전주대학교 건축공학과, 조교수, 공학박사) | Han Sun-Jin (Dept. of Architectural Engineering, Jeonju University) Corresponding author
  • 이득행(성균관대학교 건설환경공학부 및 글로벌스마트시티융합전공, 부교수, 공학박사) | Lee Deuckhang (School of Civil, Architectural Engineering, and Landscape Architecture, and Department of Global Smart City, Sungkyunkwan University)