Structural Engineering and Mechanics

  • 제23권4호
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  • Pages.369-386
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Slenderness effects on the simulated response of longitudinal reinforcement in monotonic compression

  • Gil-Martin, Luisa Maria (University of Granada, Campus de Fuentenueva) ;
  • Hernandez-Montes, Enrique (University of Granada, Campus de Fuentenueva) ;
  • Aschheim, Mark (Civil Engineering Department, Santa Clara University) ;
  • Pantazopoulou, Stavroula J. (Department of Civil Engineering, Democritus University of Thrace)
  • 투고 : 2005.04.11
  • 심사 : 2006.03.14
  • 발행 : 2006.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

The influence of reinforcement buckling on the flexural response of reinforced concrete members is studied. The stress-strain response of compression reinforcement is determined computationally using a large-strain finite element model for bars of varied diameter, length, and initial eccentricity, and a mathematical expression is fitted to the simulation results. This relationship is used to represent the response of bars in compression in a moment-curvature analysis of a reinforced concrete cross section. The compression bar may carry more or less force than a tension bar at a corresponding strain, depending on the relative influence of Poisson effects and bar slenderness. Several cross-section analyses indicate that, for the distances between stirrups prescribed in modern concrete codes, the influence of inelastic buckling of the longitudinal reinforcement on the monotonic moment capacity is very small and can be neglected in many circumstances.

키워드

참고문헌

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피인용 문헌

  1. Local Buckling Analysis of Longitudinal Reinforcing Bars vol.138, pp.1, 2012, https://doi.org/10.1061/(ASCE)ST.1943-541X.0000414
  2. Approximate expressions for the simulated response of slender longitudinal reinforcement in monotonic compression vol.60, pp.6, 2008, https://doi.org/10.1680/macr.2008.60.6.391
  3. Approximate expressions for the simulated response of slender longitudinal reinforcement in monotonic compression vol.60, pp.6, 2008, https://doi.org/10.1680/macr.2006.00004