Seismic Performance Evaluation of Reinforced Concrete Bridge Columns under Varying Axial Force

변동 축하중을 받는 철근콘크리트 교각의 내진성능평가

  • 김태훈 (성균관대학교 건축ㆍ조경 및 토목공학 연구소) ;
  • 김운학 (국립한경대학교 토목공학과) ;
  • 신현목 (성균관대학교 토목환경공학과)
  • Published : 2003.04.01


The purpose of this study is to evaluate seismic performance of reinforced concrete bridge columns under varying axial force. A computer program, named RCAHEST(reinforced concrete analysis in higher evaluation system technology), for the analysis for reinforced concrete structures was used. Material nonlinearity is taken into account by comprising tensile, compressive and shear models of cracked concrete and a model of reinforcing steel. The smeared crack approach is incorporated. In boundary plane at which each member with different thickness is connected, local discontinuity in deformation due to the abrupt change in their stiffness can be taken into account by introducing interface element. The effect of number of load reversals with the same displacement amplitude has been also taken into account to model the reinforcing steel and concrete. The proposed numerical method for seismic performance evaluation of reinforced concrete bridge columns under varying axial force is verified by comparison with reliable experimental results.


axial force;reinforced concrete bridge columns;seismic performance evaluation;material nonlinearity


  1. 김태훈, 김운학, 신현목, “철근콘크리트 교각의 지진손상 평가 I: 이론 및 정식화”, 한국지진공학회 논문집, 제6권, 제3호, 2002, pp. 31-40.
  2. Kakuta, Y., Okamura, H., and Kohno, M., “New concepts for concrete fatigue design procedures in Japan,” IABSE Colloquium on Fatigue of Steel and Concrete Structures, Lausanne, 1982, pp. 51-58.
  3. Chung, Y. S., Meyer, C., and Shinozuka, M., “Modeling of concrete damage,” ACI Structural Journal, Vol. 86, No. 3, 1989, pp. 259-271.
  4. Kratzig, W. B., Meyer, I. F., and Meskouris, K., “Damage evolution in reinforced concrete members under cyclic loading,” Proceedings of 5th International Conference on Structural Safety and Reliabililty, San Francisco, Vol. 2, 1989, pp. 795-802.
  5. Sakai, J. and Kawashima, K., “Effect of varying axial loads including a constant tension on seismic performance of reinforced concrete bridge piers,” Journal of Structural Engineering, JSCE, 48A, 2002, pp. 735-746.
  6. Roufaiel, M. S. L. and Meyer, C., “Analytical modeling of hysteretic behaviour of R/C frames,” Journal of Structural Engineering, ASCE, Vol. 113, No. 3, 1987, pp. 429-444.
  7. 정영수, 이강균, 한기훈, 박종협, “단일주 원형 철근콘크리트 교각의 내진거동에 관한 준정적 실험”, 한국지진공학회 논문집, 제3권, 제2호, 1999, pp. 55-65.
  8. Mander, J. B., Panthaki, F. D., and Kasalanati, K., “Low-cycle fatigue behavior of reinforcing steel,” Journal of Materials in Civil Engineering, ASCE, Vol. 6, No. 4, 1994, pp. 453-468.
  9. 이재훈, 배성용, 윤석구, “나선철근교각의 내진성능실험”, 대한토목학회 논문집, 제21권, 제1-A호, 2001, pp. 109-121.
  10. 김태훈, 김운학, 신현목, “철근콘크리트 교각의 지진손상 평가 II: 수치해석 예”, 한국지진공학회 논문집, 제6권, 제3호, 2002, pp. 41-52.
  11. Rodriguez-Gomez, S. and Cakmak, A. S., “Evaluation of seismic damage indices for reinforced concrete structures,” Report No. NCEER 90-0022, National Center for Earthquake Engineering Research, State University of New York at Buffalo, 1990.
  12. Taylor, R. L., FEAP - A Finite Element Analysis Program, Version 7.2, Users Manual, Vol. 1 and Vol. 2, 2000.
  13. 김태훈, “비선형 유한요소해석을 이용한 철근콘크리트 교각의 내진성능평가”, 박사학위논문, 성균관대학교, 2003.
  14. Kent, D. C. and Park, R., “Flexural members with confined concrete,” Journal of Structural Engineering, ASCE, Vol. 97, No. 7, 1971, pp. 1969-1990.
  15. 김태훈, 신현목, “Analytical approach to evaluate the inelastic behaviors of reinforced concrete structures under seismic loads,” 한국지진공학회 논문집, 제5권, 제2호, 2001, pp. 113-124.