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직접 변위설계법을 이용한 구조물의 내진성능평가

Seismic Performance Evaluation of a Structure Using Direct Displacement-Based Design Method

  • 김진구 (성균관대학교 건축공학과) ;
  • 방성혁 (성균관대학교 건축공학과)
  • 발행 : 2002.04.01

초록

본 연구에서는 구조물의 설계방법에 국한되어 있는 직접 변위설계법을 응용하여 기존 구조물의 성능점을 산정하는 방법에 관하여 연구하였다. 개발된 방법을 이용하여 단자유도 구조물의 주기, 항복 후 강성비, 요구되는 탄성강도에 대한 항복강도비 등의 설계변수를 변화시키며, 지진 하중에 대한 응답을 구하고 그 결과를 분석하였다. 또한 10층 철골 골조의 내진성능 평가에 적용하였다. 제안된 방법의 정확성을 검증하기 위하여 기존의 내진성능 평가방법인 능력스펙트럼법과 시간이력해석법에 의한 결과와 비교하였다. 제안된 방법은 능력스펙트럼법과 동일한 결과를 보였으며 시간이력해석 결과와도 비교적 잘 일치하였다.

A procedure for determination of performance point was developed based on the concept of the direct displacement-based design method. Using the proposed procedure, parametric study has been performed for various natural periods of the structure, yield strength, and the stiffness after the first yield. The proposed method was also applied to a 10-story steel frame, and the results were compared to those from the capacity spectrum method and the time history analysis. It was found from the comparison that there were good agreement between the results.

키워드

참고문헌

  1. Shibata, A. and Sozen, M. A., “Substitute structure method for seismic design in R/C,” Journal of the Structural Division, ASCE, Vol. 102, ST1, 1976, pp. 1-18.
  2. Iwan, W. D. and Gate, N. C., “The effective period and damping of a class of hysteretic structures,” Eearthquake Eng. and Struct. Dyn., Vol. 7, 1979, pp. 199-212. https://doi.org/10.1002/eqe.4290070302
  3. Jennings, P. C., “Equivalent viscous damping for yielding structure,” Journal of the Engineering Mechanics Division, ASCE, Vol. 95, EMI, 1968, pp. 138-163.
  4. Priestley, M. J. N. and Calvi, G. M., “Concepts and procedures for direct displacement-based design,” Seismic Design Methodologies for the Next Generation of Codes, Fajfar and Krawinkler(eds.), Balkema, Rotterdam, 1996, pp. 171-181.
  5. Chopra, A. K. and Goel, R. K., “Diract displacementbased design: Use of inelastic vs. elastic design spectra,” Earthquake Spetra, Vol. 7, No. 1, 2001.
  6. Medhekar, M. S. and Kennedy, D. J. L., “Displacementbased seismic design of buildings-theory,” Engineering Structures, Vol. 22, 2000, pp. 201-209. https://doi.org/10.1016/S0141-0296(98)00092-3
  7. ATC, “Seismic evaluation and retrofit of concrete buildings,” ATC-40, Applied Technology Council, Redwood City, California, 1996.
  8. FEMA, “NEHRP Guidelines for the seismic rehabilitation of buildings”, FEMA-273, Federal Emergency Management Agency, Washington, D.C., 1997.
  9. SEAOC, “Tentative guidelines for performance-based seismic engineering,” SEAOC Blue Book, Structural Engineers Association of California, 1999.
  10. 한국지진공학회, “내진설계기준연구(II)”, 건설교통부, 1997.
  11. Li, K. N., CANNY-E Technical Manual(Part 1), Canny Consultants Pte. Ltd., 1996. 11.
  12. Li, K. N., CANNY-E Users' Manual, Canny Consultants Pte. Ltd., 1996. 11, p. 148.
  13. Vanmarcke, E. H. and Gasparini, D. A., A Program for Artificial Motion Generation, User's Manual and Documentation, Dept. of Civil Engineering, Massachusetts Institute of Technology, 1976.

피인용 문헌

  1. A New Hybrid Method for Nonlinear Soil-Structure Interaction Analysis vol.7, pp.6, 2003, https://doi.org/10.5000/EESK.2003.7.6.001
  2. Performance-Based Seismic Retrofit Strategy for Existing Reinforced Concrete Frame Systems Using Fiber-Reinforced Polymer Composites vol.11, pp.2, 2007, https://doi.org/10.1061/(ASCE)1090-0268(2007)11:2(211)