Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지

Energy-Based Seismic Evaluation of Reinforced Concrete Structures I - Flexural Components

에너지에 근거한 철근콘크리트 구조물의 내진성능 평가 I - 휨요소

  • 김장훈 (아주대학교 환경도시공학부)
  • Published : 1999.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

An energy balance procedure is developed to incorporate the effects of earthquake duration which involves the effect of cyclic loading and the corresponding cumulative plastic deformation. Particular emphasis is given to the flexural failure of non-seismically designed columns of reinforced concrete frames. For this, conceptual strength deterioration models for columns, governed by concrete, anchorage failure and longitudinal steel fracture due to low-cycle fatigue, are proposed. It is evident that the energy-based method has good agreement with the experimental data and is able to predict the failure mode.

지진의 시간적인 요인, 즉 반복하중효과와 이에 따른 누적소성변위를 고려하기 위하여 에너지 평형에 근거한 해석방법이 개발되었다 본 논문에서는 내진 설계되지 않은 골조 기둥의 파괴유형에 주목하고자 한다. 이를 위하여 기둥의 휨강도저감모델이 제안되는데 파괴유형별로는 콘크리트에의한 파괴 주근의 부착/정착강도 파괴 및 저사이클피로에 의한 주근의 파단등을 고려하였다 에너지에 근거한 모델에 의하여 예측된 응답과 실험결과를 비교하였으며 이론과 실험간의 응답과 파괴유형이 서로 매우 가까움을 확인하였다.

Keywords

References

  1. Research Report no.84-2 Seismic design of bridge piers Mander, J. B.;Priestley, M. J. N.;Park, R.
  2. Technical Report, NCEER-93-0010 Seismic performance of shear-critical reinforced concrete bridge piers Mander, J. B.;Waheed, S. M.;Chaudhary, M. T. A.;Chen, S. S.
  3. Technical Report, NCEER-96-0008 Seismic evaluation of a 30-year-old non-ductile highway bridge pier and its retrofit Mander, J. B.;Mahmoodzadegan, B.;Bhadra, S.;Chen, S. S.
  4. Technical Report, NCEER-96-0009 Seismic performance of a model reinforced concrete bridge pier before and after retrofit Mander, J. B.;Kim, J. H.;Ligozio, C. A.
  5. Technical Report, MCEER-98-0009 Fatigue analysis of unconfined concrete columns Mander, J. B.;Dutta, A.;Kim, J. H.
  6. Technical Report, NCEER-94-0006 Seismic energy based fatigue damage analysis of bridge columns, part Ⅰ: evaluation of seismic capacity Chang, G. A.;Mander, J. B.
  7. Journal of Materials in Civil Engineering v.6 no.4 Low-cycle fatigue behavior of reinforcing steel Mander, J. B.;Panthaki, F. D.;Kasalanati, A.
  8. Building code requirements for structural concrete and commentary ACI 318
  9. Seismic Design of Reinforced Concrete and Masonry Structures Paulay, T.;Priestley, M. J. N.
  10. ACI Materials Journal v.89 no.6 Bond of reinforcement under controlled confinement Malvar, L. J.
  11. Report No. UCB/EERC 83-23 Local bond stress-slip relationships of deformed bars under generalized excitations Eligehausen, R.;Popov, E. P.;Bertero, V. V.
  12. Transactions v.76 A study of the effects of cyclic thermal stresses on a ductile metal Coffin, L. F. Jr.
  13. Heat Transfer Symposium Behavior of materials under conditions of thermal stress Manson, S. S.
  14. Transactions of the American Society of Mechanical Engineering;Journal of Applied Mechanics v.12 no.3 Gumulative damage in fatigue Miner, M. A.
  15. Technical Report, NCEER-94-0013 Seismic energy based fatigue damage analysis of bridge columns, part Ⅱ: Evaluation of seismic demand Chang, G. A.;Mander, J. B.
  16. Reinforced Concrete Structures Park, R.;Paulay, T.