Computers and Concrete

  • 제7권4호
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  • Pages.303-315
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  • 2010
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Stress resultant model for ultimate load design of reinforced-concrete frames: combined axial force and bending moment

  • Pham, Ba-Hung (Ecole Normale Superieure de Cachan - Laboratoire de Mecanique et Technologie) ;
  • Davenne, Luc (Ecole Normale Superieure de Cachan - Laboratoire de Mecanique et Technologie) ;
  • Brancherie, Delphine (Universite de Technologie de Compiegne) ;
  • Ibrahimbegovic, Adnan (Ecole Normale Superieure de Cachan - Laboratoire de Mecanique et Technologie)
  • 투고 : 2009.07.30
  • 심사 : 2009.12.23
  • 발행 : 2010.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, we present a new finite Timoshenko beam element with a model for ultimate load computation of reinforced concrete frames. The proposed model combines the descriptions of the diffuse plastic failure in the beam-column followed by the creation of plastic hinges due to the failure or collapse of the concrete and or the re-bars. A modified multi-scale analysis is performed in order to identify the parameters for stress-resultant-based macro model, which is used to described the behavior of the Timoshenko beam element. The micro-scale is described by using the multi-fiber elements with embedded strain discontinuities in mode 1, which would typically be triggered by bending failure mode. A special attention is paid to the influence of the axial force on the bending moment - rotation response, especially for the columns behavior computation.

키워드

참고문헌

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피인용 문헌

  1. Enriched Timoshenko beam finite element for modeling bending and shear failure of reinforced concrete frames vol.143, 2014, https://doi.org/10.1016/j.compstruc.2014.06.004
  2. Stress-resultant models for ultimate load design of reinforced concrete frames and multi-scale parameter estimates vol.51, pp.3, 2013, https://doi.org/10.1007/s00466-012-0734-6
  3. A comparison of displacement-based Timoshenko multi-fiber beams finite element formulations and elasto-plastic applications vol.22, pp.4, 2018, https://doi.org/10.1080/19648189.2016.1210031
  4. An efficient materially nonlinear finite element model for reinforced concrete beams based on layered global-local kinematics 2018, https://doi.org/10.1007/s00707-017-2081-3
  5. Embedded discontinuity finite element formulation for failure analysis of planar reinforced concrete beams and frames vol.50, 2013, https://doi.org/10.1016/j.engstruct.2012.07.028
  6. An algorithm to simulate the nonlinear behavior of RC 1D structural members under monotonic or cyclic combined loading vol.66, pp.3, 2010, https://doi.org/10.12989/sem.2018.66.3.305
  7. A multifiber Timoshenko beam with embedded discontinuities vol.214, pp.None, 2010, https://doi.org/10.1016/j.engfracmech.2019.03.032