DOI QR코드

DOI QR Code

적층고무받침을 사용한 철근콘크리트 교각의 내진성능평가

Seismie Performance Evaluation of Reinforced Concrete Bridge Piers Supported by Laminated Rubber Bearings

  • 김태훈 (성균관대학교 건축ㆍ조경 및 토목공학 연구소) ;
  • 최정호 (한경대학교 토목공학과) ;
  • 신현목 (성균관대학교 토목환경공학과)
  • 발행 : 2004.04.01

초록

이 연구는 적층고무받침을 사용한 철근콘크리트 교각의 내진 성능평가를 하는데 그 목적이 있다. 사용된 프로그램은 철근콘크리트 구조물의 해석을 위한 RCAHEST이다. 재료적 비선형성에 대해서는 균열콘크리트에 대한 인장, 압축, 전단모델과 콘크리트 속에 있는 철근모델을 조합하여 고려하였다. 이에 대한 콘크리트의 균열모델로서는 분산균열모델을 사용하였으며 적층고무받침의 거동을 예측하기 위해서 지진격리요소를 개발하였다. 이 연구에서는 적층고무받침을 사용한 철근 콘크리트 교각의 내진 성능평가를 위해 제안한 해석기법을 신뢰성 있는 연구자의 실험결과와 비교하여 그 타당성을 검증하였다.

The purpose of this study is to evaluate seismic performance of reinforced concrete bridge piers supported by laminated rubber bearings. A computer program, named RCAHEST(Reinforced Concrete Analysis in Higher Evaluation System Technology), for the analysis of 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. Seismic isolator element is developed to predict behaviors of laminated rubber bearings. The proposed numerical method for seismic performance evaluation of reinforced concrete bridge piers supported by laminated rubber bearings is verified by comparison with reliable experimental results.

키워드

참고문헌

  1. Priestley, M. J. N., Seible, F., and Calvi, G. M., Seismic Design and Retrofit of Bridges, John Willey & Sons, Inc., 1996.
  2. Roeder, C. W. and Stanton, J. F., "State-of-the-Art Elastomeric Bridge Bearing Design," ACI Structural Journal, Vol. 88, No. 1, 1991, pp. 31-41.
  3. Juhn, G., Manolis, G. D., Constantinou, M. C., and Reinhorn, A. M., "Experimental Study of Secondary Systems in Base-Isolated Structure," Journal of Structural Engineering, ASCE, Vol. 118, No. 8, 1992, pp. 2204-2221. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:8(2204)
  4. Tsopelas, P., Okamoto, S., Constantinou, M. C., Ozaki, D., and Fujii, S., "NCEER-Taisei Corporation Research Program on Sliding Isolation Systems for Bridges: Experimental and Analytical Study of Systems Consisting of Sliding Bearings, Rubber Restoring Force Devices and Fluid Dampers," Report No. NCEER 94-0002, National Center for Earthquake Engineering Research, State University of New York at Buffalo, 1994.
  5. 윤정방, 정우정, 김남식, 김두훈, "기초격리된 구조물의 내진성능평가를 위한 실험방법", 한국지진공학회 논문집, 제1권, 4호, 1997, pp. 45-58.
  6. Kawashima, K. and Shoji, G., "Interaction of Hysteretic Behavior between Isolator/Damper and Pier is an Isolated Bridges," Structural Engineering, JSCE, Vol. 44A, 1998, pp. 733-741.
  7. 김효범, 김영석, 정길영, 음성우, "PTFE 고무받침을 적용한 축소교량의 해석적 연구", 대한토목학회 논문집, 제20권, 제1-A호, 2000, pp. 59-67.
  8. 김태훈, 신현목, "Analytical Approach to Evaluate the Inelastic Behaviors of Reinforced Concrete Structures under Seismic Loads," 한국지진공학회 논문집, 제5권, 제2호, 2001, pp. 113-124.
  9. Kim, T. H., Lee, K. M., Yoon, C. Y., and Shin, H. M., "Inelastic Behavior and Ductility Capacity of Reinforced Concrete Bridge Piers under Earthquake. I: Theory and Formulation," Journal of Structural Engineering, ASCE, V. 129, No. 9, 2003, pp. 1199-1207. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:9(1199)
  10. 김태훈, "비선형 유한요소해석을 이용한 철근콘크리트 교각의 내진성능평가", 박사학위논문, 성균관대학교, 2003.
  11. Kent, D. C. and Park, R., "Flexural Members with Confined Concrete," Journal of Structural Engineering, ASCE, Vol. 97, No. 7, 1971, pp. 1969-1990.
  12. 김태훈, 김운학, 신현목, "변동 축하중을 받는 철근콘크리트 교각의 내진성능평가", 한국지진공학회 논문집, 제7권, 제2호, 2003, pp. 67-73. https://doi.org/10.5000/EESK.2003.7.2.067
  13. 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. https://doi.org/10.1061/(ASCE)0899-1561(1994)6:4(453)
  14. 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.
  15. Kawashima, K. and Shoji, G., "Cyclic and Hybrid Loading Tests for Reinforced Concrete Columns Supported by High Damping Rubber Bearings," Proc. 3rd Regional Symposium on Infrastructure Development in Civil Engineering, Tokyo Institute of Technology, Tokyo, Japan, 2000, pp. 163-172.
  16. Naeim, F. and Kelly, J. M., Design of Seismic Isolated Structures from Theory to Practice, John Willey & Sons, Inc., 1999.
  17. Logan, D. L., A First Course in the Finite Element Method, PWS-KENT, 1992.
  18. Taylor, R. L., FEAP - A Finite Element Analysis Program, Version 7.2, Users Manual, Vol. 1 and Vol. 2, 2000.