Structural Engineering and Mechanics

  • 제26권5호
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  • Pages.569-589
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  • 2007
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

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Modeling of cyclic bond deterioration in RC beam-column connections

  • 투고 : 2005.05.02
  • 심사 : 2007.04.20
  • 발행 : 2007.07.30
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents an analytical model for RC beam-column connections that takes into account bond deterioration between reinforcing steel and concrete. The model is based on the Lumped Damage Mechanics (LDM) theory which allows for the characterization of cracking, degradation and yielding, and is extended in this paper by the inclusion of the slip effect as observed in those connections. Slip is assumed to be lumped at inelastic hinges. Thus, the concept of "slip hinge", based on the Coulomb friction plasticity theory, is formulated. The influence of cracking on the slip behavior is taken into account by using two concepts of LDM: the effective moment on an inelastic hinge and the strain equivalence hypothesis. The model is particularly suitable for wide beam-column connections for which bond deterioration dominates the hysteretic response. The model was evaluated by the numerical simulation of five tests reported in the literature. It is found that the model reproduces closely the observed behavior.

키워드

참고문헌

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피인용 문헌

  1. Simplified model for damage in squat RC shear walls vol.31, pp.10, 2009, https://doi.org/10.1016/j.engstruct.2009.05.020