Computational Structural Engineering (전산구조공학)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
권호 표지

Nonlinear Finite Element Analysis of Reinforced Concrete Planar Members Using Rotating Orthotropic Axes Model

이방향성 회전 직교축 모델을 이용한 철근콘크리트 면부재의 비선형 유한요소해석

  • 박홍근 (미국 텍사스 오스틴소재 텍사스 대학교 연구원)
  • Published : 1995.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The objective of this research is to investigate the effectiveness of rotating orthotropic axes model in analyzing reinforced concrete planar members under cyclic as well as monotonic loading. The structural members to be addressed are moderately reinforced beams, columns, beam-column joints, and shear walls, whose failure occurs due to compressive crushing after extensive crack propagation, The rotating orthotropic axes model which is usually used for monotonic loading is developed for cyclic loading. With the existing cyclic material models of reinforcing steel and bond-slip, this material model is used for the finite element analysis. For monotonic loading, the analytical results of the rotating orthotropic axes model are compared with reinforced concrete beams which have brittle failure. For Shear wall members under cyclic loading, the analyses are compared with the experiments for the ultimate load capacity, nonlinear deformation, and pinching effect due to crack opening and closing.

이 연구의 목적은 단조하중과 반복하중을 받는 철근콘크리트 면부재 해석에 대한 이방향성 회전 직교축 모델의 성능을 검토하기 위함이다. 여기서 다루는 구조부재는 철근에 의하여 적절히 보강된 보, 기둥, 보-기둥 접합부, 그리고 전단벽등으로 부재의 파괴가 인장균열후 압축파괴에 의하여 일어나는 부재이다. 보통 단조하중에 대하여 사용도는 이방향성 회전 직교축 모델을 반복하중에 대하여 확장하며, 철근과 부착의 기존 재료모델과 함꼐 유한요소해석에 사용한다. 단조하중에 대하여 이방향성 회전 직교축 모델을 사용한 해석 결과는 취성파괴를 나타내는 철근콘크리트보의 실험결과와 비교된다. 또한 반복하중을 받는 전단벽의 극한하중, 비선형 변형, 핀칭 현상 등에 대하여 실험결과와 비교된다.

Keywords

References

  1. Building Code Requirements for Reinforced Concrete(ACI-318-89) ACI Committee 318
  2. American Concrete Institute Journal, Proceedings v.60 Shear Strength of Reinforced Concrete Beams Bresler,B.;Scordelis,A.C.
  3. American Concrete Institute Journal, Proceedings v.68 Reinforced Concrete Beams under Load Reversals Brown,R.H.;Jirsa,J.O.
  4. Earthquake Engineering Research Center, Report No. UCB/EERC-82/83 Analytical Model for Concrete Anchorage of Reinforcing Bars under Generalized Excitations Ciampi,V.;Eligehausen,R.;Bertero,V.V.;Popov,E.P.
  5. Journal of the Structural Division v.102 no.ST2 Analysis of R/C Shear Panels under Cyclic Loading Darwin,D.;Pecknold,D.A.
  6. Journal of the Structural Division v.95 no.12 Behavior of Concrete under Compressive Loadings Karsan,I.D.;Jirsa,J.O.
  7. Thesis Presented to the University of Texas at Austin, in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Nonlinear Finite Element Analysis of Reinforced Concrete Planar Structures Park,H.
  8. Nonlinear Finite Element Analysis in Structural Mechanics Strategies for Tracing the Nonlinear Response Near Limit Points Ramm,E.;Wundelich,W.(ed.);Stein,E.(ed.);Bathe,K.J.(ed.)
  9. Thesis Presented to the University of California at San Diego, in Partial Fulfillment of the Requirments for the Degree of Doctor of Philosophy Nonlinear Analysis of Reinforced Concrete Masonry Walls under Simulated Seismic Loadings de la Rovere,H.L.
  10. American Concrete Institute Journal, Proceedings v.88 no.1 Constitutive Model for Reinforced Concrete Finite Element Analysis Stevens,N.J.;Uzumeri,S.M.;Collins,M.P.;Will,G.T.
  11. American Concrete Institute Journal, Proceedings v.88 no.2 Reinforced Concrete Subjected to Reversed Cyclic Shear-Experiments and Constitutive Model Stevens,N.J.;Uzumeri,S.M.;Collins,P.
  12. American Concrete Institute Journal, Proceedings v.86 no.2 The Modified Compression-Field Theory for Reinforced Concrete Elements Subjected to Shear Vecchio,F.J.;Collins,M.P.
  13. Thesis Presented to University of Toronto, in Parial Fulfillment of the Requirements for the Degree of Doctor of Philosophy The Response of Reinforced Concrete to In-Plane Shear and Normal Stresses Vecchio,F.J.