Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Evaluation of Seismic Response of Multi-Story Frames for Multiple Ground Excitations

다중 가진에 대한 구조물의 지진응답 평가

  • 최현훈 (성균관대학교 건축공학과) ;
  • ;
  • 김진구 (성균관대학교 건축공학과)
  • Published : 2008.12.31
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Abstract

To investigate the effects of residual displacement, the structural responses of buckling-restrained braced frames (BRBF) and special moment-resisting frames (SMRF) were evaluated for design-based excitations following an application of initial residual drift. The initial residual drift was applied to the structure in two ways. The first way was to simply apply the same earthquake record to the structure twice, with an appropriate pause between applications to allow the structural response from the first record to return to zero. The second way to apply the initial residual drift was to apply a pushover to the structure until it arrives at the desired residual drift value. According to the analysis results, the initial residual drifts had a significant effect on the responses of steel BRBF and SMRF. The responses of BRBF were more highly dependent on the initial residual deformation than the responses of SMRF. Therefore, in order to minimize the post-event repair cost, a reduction of residual drift is required.

구조물의 응답에 대한 잔류변위의 영향을 평가하기 위하여, 초기 잔류변형이 있는 상태에서 작용하는 설계지진에 대한 좌굴방지 가새골조(BRBF)와 특수 모멘트골조(SMRF)의 응답을 평가하였다. 초기 잔류변형은 구조물에 두 가지 방법으로 적용하였다. 첫 번째 방법은 첫 지진에 대하여 구조물이 정지 상태에 도달한 이후 같은 크기의 지진을 적용하는 것이다. 두 번째 방법은 소요 잔류층간 변형이 발생할 때까지 일방향으로 가력한 다음 지진하중을 적용하였다. 해석결과에 따르면 초기 잔류층간변위는 BRBF와 SMRF의 응답에 큰 영향을 주었다. SMRF 시스템보다 BRBF의 응답이 초기 잔류변형에 크게 의존하였다. 그러므로 지진발생 이후 보수비용을 최소화하기 위하여 잔류층간변위를 줄이는 것이 필요하다.

Keywords

References

  1. SEAOC, Performance based seismic engineering of buildings, SEAOC Vision 2000 Committee, Structural Engineers Association of California, California, 1995
  2. FEMA, Prestandard and Commentary for the Seismic Rehabilitation of Buildings, Report FEMA-356, Federal Emergency Management Agency, Washington, D.C., 2000
  3. MacRae, G.A., and Kawashima, K., "Post-earthquake residual displacements of bilinear oscillators," Earthquake Engineering and Structural Dynamics, Vol. 26, No. 7, 1997, pp. 701-716 https://doi.org/10.1002/(SICI)1096-9845(199707)26:7<701::AID-EQE671>3.0.CO;2-I
  4. Christopoulos, C., Pampanin, S., and Priestley, M.J.N., "Performance-based seismic response of frame structures including residual deformations. Part I: single-degree of freedom systems," Journal of Earthquake Engineering, Vol. 7, No. 1, 2003, pp. 97-118 https://doi.org/10.1142/S1363246903000894
  5. Ruiz-Garcia, J. and Miranda, E., "Evaluation of residual drift demands in regular multi-storey frames for performancebased seismic assessment," Earthquake Engineering and Structural Dynamics, Vol. 35, No. 13, 2006, pp. 1609-1629 https://doi.org/10.1002/eqe.593
  6. Christopoulos, C., Filiatrault, A., Uang, C.M., and Folz, B., "Post-tensioned energy dissipating connections for moment resisting steel frames," Journal of Structural Engineering, Vol. 128, No. 9, 2002, pp. 1111-1120 https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1111)
  7. Garlock, M., Ricles. J., and Sause, R., "Experimental studies on full-scale post-tensioned steel moment connections," The 13th World Conference on Earthquake Engineering, Vancouver, Canada, Paper No. 2514, 2004
  8. Christopoulos, C., Tremblay, R., and Kim H.J., "Development and validation of the new self-centering steel brace," The 5th International Conference on the Behaviour of Steel Structures in Seismic Areas, Yokohama, Japan, 2006, pp. 197-203
  9. Zhu, S. and Zhang, Y., "Seismic behaviour of selfcentering braced frame buildings with reusable hysteretic damping brace," Earthquake Engineering and Structural Dynamics, Vol. 36, No. 10, 2007, pp. 1329-1346 https://doi.org/10.1002/eqe.683
  10. ASCE, Minimum Design Loads for Buildings and Other Structures, ANSI/SEI7-05 Including Supplement No.1, American Society of Civil Engineers, 2006
  11. AISC, Seismic Provisions for Structural Steel Buildings, ANSI/AISC 341s1-05 Including Supplement No.1, American Institute of Steel Construction, Inc., 2005
  12. AISC, Load and Resistance Factor Design Specification for Structural Steel Buildings, ANSI/AISC 360-05 Including Supplement No. 1, American Institute of Steel Construction, Inc., 2005
  13. Tsai, K.C., Weng, Y.T., Lin, M.L., Chen, C.H., Lai, J.W., and Hsiao, P.C., "Pseudo dynamic tests of a full-scale CFT/BRB composite frame: displacement based seismic design and response evaluations," International Workshop on Steel and Concrete Composite Construction, National Center for Research on Earthquake Engineering, National Taiwan University, Taipei, 2003, pp. 165-176
  14. Tremblay, R., Poncet, L., Bolduc, P., Neville, R., and DeVall, R., "Testing and Design of Buckling Restrained Braces for Canadian Application," Proceedings of the 13th World Conference on Earthquake Engineering, Canadian Association for Earthquake Engineering, Vancouver, Canada, Paper No. 2893, 2004
  15. Carr, A.J., "Ruaumoko Program for Inelastic Dynamic Analysis-User Manual," Department of Civil Engineering, University of Canterbury, New Zealand, 2005
  16. Valles, R.E., Reinhorn, A.M., Kunnath, S.K., Li, C., and Madan, A., IDARC 2D version 4.0: A computer program for the inelastic damage analysis of buildings, Technical Report NCEER-96-0010, National Center for Earthquake Engineering Research, State university of New York, Buffalo, 1996
  17. Black, C., Makris, N., and Aiken, I., Component testing, stability analysis and characterization of buckling restrained braces, PEER Report 2002/08, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 2002
  18. Somerville, P., Smith, H., Puriyamurthala, S., and Sun. J., Development of Ground Motion Time Histories for Phase 2 of the FEMA/SAC Steel Project, SAC Joint Venture, SAC/BD 97/04, 1997