Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
권호 표지

Capacity Spectrum Analysis using Equivalent SDOF Method and Equivalent Damping Method for RC Wall Structure

철근콘크리트 벽체구조물에 대한 등가단자유도 방법 및 등가 감쇠비 산정방법에 따른 역량스펙트럼해석

  • Published : 2008.04.28
Download PDF
⟨ Previous Next ⟩

Abstract

Performance-based approaches as an alternative method of the existing force-based approach have gradually become recognized tools for the seismic design and evaluation. The maximum inelastic displacement response using capacity spectrum method (CSM) with elastic response spectrum is estimated from seismic response of equivalent linear system converted from nonlinear system. The purpose of this paper is to evaluate accuracy of capacity spectrum method using the equivalent SDOF methods of 4 types and the equivalent damping methods of 5 types for RC wall structure. In order to evaluate accuracy of capacity spectrum analysis, the shaking table test results for RC wall structures are compared with those by the capacity spectrum analysis. Also, the effect of bilinear capacity curves by two bilinear approximation methods for capacity spectrum analysis is compared.

기존의 하중-기반 방법을 대체할 방법중에 성능-기반 방법이 내진설계 및 내진성능평가의 기법으로서 널리 인식되고 있는 실정이다. 탄성응답스펙트럼을 사용하는 역량스펙트럼방법은 비선형 시스템을 등가의 선형시스템으로 치환하여 주어진 지진 하중에 대한 구조물의 최대 비선형 거동을 예측한다. 본 연구의 목적은 철근콘크리트 벽체구조물에 대하여 4개의 등가단자유도방법과 5개의 등가감쇠방법을 사용하여 역량스펙트럼방법의 정확성을 평가하는 것이다. 역량스펙트럼방법의 정확성을 평가하기 위하여 벽체구조물에 대한 진동대 실험결과와 비교하였다. 또한 이선형 곡선변환방법(등가에너지 근사화방법, 유효강성 사화 방법)에 의한 이선형 역량곡선들의 역량스펙트럼 해석에 대한 영향도 비교하였다.

Keywords

References

  1. 이동근, 송종걸, 윤정방 (1997) 지진에 대한 고층구조물의 시스템 연성요구도 평가방법, 대한토목학회 논문집, 17(1-2), pp.245-257
  2. Applied Technology Council (1996) Seismic Evaluation and Retrofit of concrete Buildings, ATC-40 Report, Redwood city, California
  3. Applied Technology Council (1997) NEHRP guidelines for the seismic rehabilitation of building (FEMA 273), and NEHRP commentary on the guidelines for the seismic rehabilitation of buildings (FEMA 274), ATC 33, Redwood city, CA
  4. Applied Technology Council (2004) Improvement of nonlinear static seismic analysis procedures (FEMA 440), ATC-55 Project, Redwood City, California
  5. Chopra, A.K., Goel, R.K. (2001) A modal pushover analysis procedure to estimate seismic demands for buildings: theory and preliminary evaluation, Report No.PEER, Pacific Earthquake Engineering Research Center, University of California, Berkeley
  6. Fajfar, P., Gaspersic, P. (1996) The N2 method for the seismic damage analysis of RC buildings, Earthquake Engineering and Structural Dynamics, 25(1), pp.31-46 https://doi.org/10.1002/(SICI)1096-9845(199601)25:1<31::AID-EQE534>3.0.CO;2-V
  7. Gulkan, p., Sozen, M (1974) Inelastic response of reinforced concrete structures to earthquakes motions, ACI Journal, 71, pp.604-610
  8. Hachem, M. M. (2000) Bispec Help Manual, Pacific Earthquake Engineering Research Center
  9. HAZUS-MH1. (2003) Earthquake Loss Estimation Methodology, Technical Manual, Prepared by the National Institute of Building Sciences for Federal Emergency Management Agency
  10. IAEA (2002) IAEA CRP-NFE Camus Benchmark: Experimental results and specifications to the participants, Report DM2S. SEMT/EMSI/RT/02-047/A
  11. Iwan, W.D., Gates, N.C. (1979) The effective period and damping of a class of hysteretic structures, Earthquake Engineering and Structural Dynamic, 7, pp.199-211 https://doi.org/10.1002/eqe.4290070302
  12. Kowalsky, M., Priestley, M.J.N., Mac Rae, G.A. (1995) Displacement-based design of RC bridge columns in seismic regions, Earthquake Engineering and Structural Dynamics, 24, pp.1623-1643 https://doi.org/10.1002/eqe.4290241206
  13. Lee, D. G., Song, J. K., Yun, C. B. (1997) Estimation of system-level ductility demands for multi-story structures, Engineering Structures, 19(12), pp.1025-1035 https://doi.org/10.1016/S0141-0296(97)00010-2
  14. Mander, J.B., M.J.N. Priestley, R. Park (1988) Theoretical Stress-Strain Model for Confined Concrete, Journal of the Structural Division, ASCE, 114(8), pp.1804-1826 https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  15. Miranda, E., Ruiz-Garcia, J. (2002) Evaluation of approximate methods to estimate maximum inelastic displacement demands, Earthquake Engineering and Structural Dynamics, 31, pp.539-560 https://doi.org/10.1002/eqe.143
  16. Qi, X., Moehle, J.P. (1991) Displacement design approach for reinforced concrete structures subjected to earthquake, Report No. UCB/EERC-91/02, Univ. of California, Berkeley
  17. Rosenblueth, E., Herrera, I. (1964) On a kind of hysteretic damping, Journal of Engineering Mechanics Division ASCE, 90, pp.37-48
  18. Valles, R.E., Reinhorn, A.M., Kunnath S.K., Madan A. (1996) IDARC2D Version 4.0: A Computer Program for the Inelastic Damage Analysis of Building, Technical Report NCEER-96-0010, NCEER, State University of New York at Buffalo
  19. UCFyber (2000) Cross section analysis software for structural engineers, $Zevent^{TM}$