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Verification of Hybrid Structural Test Technique by Shaking Table Test of a Linear 2-Dimensional Frame Model

소형선형 평면뼈대모형의 진동대실험을 통한 하이브리드실험 기법의 검증

  • 조성민 (명지대학교 토목환경공학과) ;
  • 최인규 ((주)인터컨스텍 기술연구소) ;
  • 정대성 (명지대학교 하이브리드구조실험센터) ;
  • 김철영 (명지대학교 토목환경공학과)
  • Received : 2010.06.09
  • Accepted : 2010.10.25
  • Published : 2010.12.31

Abstract

This paper deals with the hybrid structural test technique which has been introduced and studied currently in Korea. In this study, a Mini-MOST system which was developed as a part of NEES research was modified and improved to reduce the total simulation time to half of the original system. Using the proposed system together with the 2 dimensional small steel frame specimen, the validity and efficiency of the hybrid test technique is investigated. Even though the hybrid test has been developed as an alternative to the shaking table test and has been studied and applied for a long time in several countries, no attempt has been made to compare it directly with the shaking table test. Therefore, in this study, the hybrid test results are compared with those of the shaking table test as well as with a numerical simulation for the verification of hybrid test. From the comparison and analysis of the test results, it is concluded that the hybrid test can simulate the actual seismic behavior of structural systems very accurately and it can be a good alternative to the shaking table test.

본 논문은 지진에 의한 구조물의 거동을 평가하기 위한 실험방법 중 최근 국내에 도입되어 연구되고 있는 하이브리드실험에 대한 시스템을 구축하고, 그에 따른 모델개발과 하이브리드실험을 실시하여 하이브리드실험기법의 타당성과 정확도를 평가하기 위함이다. 이를 위해 NEESgrid의 미니모스트 시스템을 벤치마킹하여 여건에 맞게 수정, 보완하였으며 2차원 평면뼈대모형을 개발하여 실험에 적용하였다. 그리고 하이브리드실험 결과의 평가를 위해 국내에서는 거의 시도되지 않았던 진동대실험과 비교를 함으로써 결과의 신뢰도를 높였다. 진동대실험에는 하이브리드실험과 동일한 크기의 실물모형을 제작, 실험하여 크기효과의 영향을 최소화하였다. 두 실험의 결과는 거의 비슷한 것으로 나타나 하이브리드실험이 진동대실험을 대체할 수 있을 것으로 판단된다.

Keywords

References

  1. Hwang, T.H., and Scribner, C.F., "Effect of load history variation on cyclic response of R/C flexural members," Proc. of 8th WCEE, San Francisco, Vol. 6, 13-420, 1984
  2. Kobayashi, K., Kokusho, S., Takiguchi K., and Boo, C.Y., "Study on the restoring force characteristics of RC column to bi-directional deflection history," Proc. of 8th WCEE, San Francisco, Vol. 6, 537-544, 1984.
  3. Leon, R.T.. and Deierlein, G.G., "Considerations for the use quasi-static testing," Earthquake spectra, Vol. 12, No. 1, 87-109, 1996. https://doi.org/10.1193/1.1585869
  4. Low, S.S.. and Moehle, J.P., "Experimental study of reinforced concrete columns subjected to multi-axial loading," Report No. UCB/EERC-87/14, University of California, Berkeley, California 1987.
  5. Ohtani, K., Ogawa, N., Katayama, T., and Shibata, H., "3-D full-scale earthquake testing facility and earthquake engineering network," Proceedings of the 3rd World Conference on Structural Control, Como, Italy, 2002.
  6. Hakuno, M., Shidawara, M., and Hara, T., "Dynamic destructive test of a cantilever beam controlled by an analogcomputer," Journal of JSCE, Vol. 171, 1-9, 1969. (in Japanese)
  7. Takanashi, K., Udagawa, K., Seki, M., Okada, T., and Tanaka, H., "Non-linear earthquake response analysis of structures by a computer-actuator on-lin system," Transaction of the Architectural Institute of Japan, Vol. 229, 77-83, 1975. https://doi.org/10.3130/aijsaxx.229.0_77
  8. Mahin, S.. and Shing, P.B., "Pseudodynamic method for seismic testing," Journal of Structural Engineering (ASCE), Vol. 111, 1482-1503, 1985. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:7(1482)
  9. Sivaselvan, M.V., "A Unified View of Hybrid Seismic Simulation Algorithms," Proceddings of the 8th. National Conference on Earthquake Engineering, San Francisco, April 24, 2006.
  10. Schellenberg, A., Mahin, S.A., and Fenves, G.L., "A Software Framework for Hybrid Simulation of Large Structural Systems," Proceedings of Sessions of the 2007 Structures Congress, ASCE, California, USA, May 16-19, 2007.
  11. Nakashima, M., and Takai, H., "Computer-actuator online testing substructure and mixed integration techniques," Proc. of the 7th Symposium on the Use of Computers in Building Structures, Archtectural Institute of Japan, Tokyo, Japan, 205-210, 1985. (in Japanese)
  12. Dermitzakis, S.N., and Mahin, S.A., "Development of substructuring techniques for on-line computer controlled seismic perfomance testing," UBC/EERC-85/04, Earthquake Engineering Research Institute, Univercity of California, Berkeley, California, 1985.
  13. Takanashi, K., and Nakashima, M., "Japanese activities on on-line testing," Journal of Engineering Mechanics (ASCE), Vol. 113, 1014-1032, 1987. https://doi.org/10.1061/(ASCE)0733-9399(1987)113:7(1014)
  14. Shing, P.B., and Mahin, S, "Experimental error propagation in pseudodynamic testing," UBC/EERC-83/12, Earthquake Engineering Research Institute, University of California, Berkeley, California, 1983.
  15. Nakashima, M. Kaminosomo, T., and Ishida, M., "Integration techniques for substructure pseudodynamic test," Proceedings of the 4th U.S. National Conference on Earthquake Engineering, Palm Springs, CA, 515-524, 1990.
  16. Newmark, N.M., "A method of computation for structural dynamics," Journal of Engineering Mechanics (ASCE), Vol. 85, 67-94, 1959.
  17. Nickell, R.E., "On the Stability of Approximation Operators in Problems of Structural Dynamics," International Journal of Solids and Structures, Vol. 7, 301-319, 1971. https://doi.org/10.1016/0020-7683(71)90028-X
  18. Hilber, H.M, Hughes, T.J.R, and Taylor, RL, "Improved numerical dissipation for time integration algorithms in structural dynamics," Earthquake Engineering and Structural Dynamics, Vol. 5(3), 283-292, 1977. https://doi.org/10.1002/eqe.4290050306
  19. Hilber, H.M., and Hughes, T.J.R., "Collocation, Dissipation and ‘Overshoot' for Time Integration Schemes in Structural Dynamics," Earthquake Engineering and Structural Dynamics, Vol. 6, 99-117, 1978. https://doi.org/10.1002/eqe.4290060111
  20. Chung, J., and Hulbert, G.M., "A Time Integration Algorithm for Structural Dynamics With Improved Numerical Dissipation: The Generalized-$\alpha$ Method," Journal of Applied Mechanics, Vol. 60, 371-375, 1993. https://doi.org/10.1115/1.2900803
  21. Chung, J., and Lee, J.M., "A new family of explicit time integration methods for linear and non-linear structural dynamics," International Journal for Numerical Methods in Engineering, Vol. 37(23), 3961-3976, 1994. https://doi.org/10.1002/nme.1620372303
  22. Hulbert, G.M., and Chung, J., "Explicit time integration algorithms for structural dynamics with optimal numerical dissipation," Computer Methods in Applied Mechanics and Engineering, Vol. 137, 175-188, 1996. https://doi.org/10.1016/S0045-7825(96)01036-5
  23. 김철영, 정대성, 신재민, "대형구조물의 내진실험을 위한 하이브리드 실험기법," 한국지진공학회 2005년 워크샵 발표집, 65-77, 2005.
  24. 최인규, 정대성, 김철영, 박영석, "KOCED 미니모스트 시스템을 이용한 온라인 하이브리드실험," 대한토목학회 학술대회 논문집, 2430-2433, 2007.
  25. Kim, N.S., and Lee, D.G., "Pseudodynamic test for evaluation of seismic performance of base-isolated liquid storage tanks," Engineering Structures, Vol. 17, No. 3, 198-208, 1995. https://doi.org/10.1016/0141-0296(95)00076-J
  26. Chung, W.J. Yun, C.B., Kim, N.S., and Seo, J.W., "Shaking table and pseudodynamic tests for the evaluation of the seismic performance of base-isolated structures," Engineering Structures, Vol. 21, 365-379, 1999. https://doi.org/10.1016/S0141-0296(97)00211-3
  27. 김태진, 김태완, 박준희, "하이브리드 시뮬레이션 실험기법," 한국강구조학지, Vol. 18, No. 2, 42-46, 2006.
  28. 박규식, 권오성, Spencer, B.F. Jr., 윤태양, "UI-SimCor를 이용한 하이브리드 실험 소개," 한국지진공학회 추계워크샵발표 논문집, 357-378, 2009.
  29. 정래영, "실시간 하이브리드 실험 시스템을 위한 Implicit 시간 적분법," 한국지진공학회 논문집, 제 10권 제 5호, 99-106, 2006. https://doi.org/10.5000/EESK.2006.10.5.099
  30. 박은천, 이성경, 이헌재, 문석준, 정형조, 민경원, "대형 MR감 쇠기가 설치된 건축구조물의 실시간 하이브리드 실험 및 준능 동 알고리즘 적용," 한국전산구조공학회논문집, 제 21권 제 5 호, 465-474, 2008.
  31. 이성경, 민경원, 박은천, "진동대를 이용한 구조물의 하이브리드 실험," 대한건축학회지, 제 22권 제 5호, 57-63, 2006.
  32. Kwon, O., Elnashai, A.S, Spencer, B.F. Jr., and Park, K. "UI-SIMCOR: A global platform for hybrid distributed simulation," Ninth Canadian Conference on Earthquake Engineering, Canada, June 2007.
  33. Schellenberg, A., Kim, H.K., Takahashi, Y., Fenves, G.L., and Mahin, S.A., "OpenFresco Framework for Hybrid Simulation: Installation and Getting Started Manual," Department of Civil and Environmental Engineering, University of California, Berkeley, 2007.
  34. Takanashi, Y., and Fenves, G.L., "Software framework for distributed experimental-computational simulation of structural systems," Earthquake Engineering and Structural Dynamics, Vol. 35(3), 267-291, 2006. https://doi.org/10.1002/eqe.518
  35. Elnashai, A.S., Papanikolaou, V., and Lee, D.H., "Zeus-NL-A System for Inelastic Analysis of Structures," MAE Center CD-Release 04-01, 2004
  36. McKenna, F., "Object oriented finite element analysis: frameworks for analysis algorithms and parallel computing," Ph.D. Thesis, University of California, Berkely, 1996.
  37. Mazzoni, S., McKenna, F., Scott, M.H., and Fenves, G.L., "OpenSees Command Language Manual," PEER Center, UC Berkeley, 2005.
  38. McKenna, F., and Fenves, G.L., "OpenSees Manual," PEER Center, http://OpenSees.berkeley.edu., 2001.
  39. Filppou, F.C., and Constantinides, M. "FEDEASLab Getting Started Guide and Simulation Examples," Technical Report NEESgrid-2004-22, 2004.
  40. Subbarai, K., and Dokainish, M.A., "A survey of direct timeintegration methods in computational structural dynamics-II. Implicit methods," Computers & Structures, Vol. 32(6), 1387-1401, 1989. https://doi.org/10.1016/0045-7949(89)90315-5
  41. Combescure, D., and Pegon, P., "alpha-Operator splitting time-integration technique for pseudo-dynamic testing, error propagation analysis," Soil Dynamics and Earthquake Engineering, Vol. 16, 427-443, 1997. https://doi.org/10.1016/S0267-7261(97)00017-1