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Numerical Simulation on the Shaking Table Test considering Soil Structure Interaction

구조물과 지반의 동적 상호작용을 고려한 진동대 시험에 관한 수치 시뮬레이션

  • 이성경 (단국대학교 리모델링 연구소)
  • Published : 2005.10.01

Abstract

This paper proposes a shaking table test considering the dynamic soil strcuture interaction (SSI) by using the accelerations measured from superstructure and shaking table. The proposed method based on the substructure method is that only superstructure is used as an experimental model and dynamic soil stiffness is reflected on the controller of shaking table for soil model. At the moment, an experimental superstructure is excited by a shaking table with the motion required to emulate the dynamic behavior of total SSI system. First, the validity of the proposed method is verified by the verification model of numerical simulation, which is derived from the equation of motion of SSI system under consideration. Also, the applicability of the proposed method to shaking table test is numerically verified from the simulation model incorporating the transfer function of shaking table.

본 논문에서는 상부구조물과 진동대에서 측정된 가속도를 이용하여 구조물과 지반의 동적 상호작용을 고려한 진동대 시험을 수행하는 방법이 제안된다. 부분구조법을 기반으로 한 제안된 실험법은 상부구조물만을 실험체로 사용하고 지반모델에 대해서는 동적지반강성을 진동대 제어기에 반영하는 방법이다. 이 때, 실험부분인 상부구조물은 전체 구조물 지반계의 동적거동을 모사하기 위한 운동으로 진동대에 의해 가진된다. 먼저, 구조물 지반계의 운동방정식으로부터 유도된 수치 시뮬레이션 검증모델에 의해 제안된 방법의 타당성이 검증된다. 또한, 진동대의 전달함수를 고려한 시뮬레이션 모델로부터 진동대 시험에 의한 제안된 방법의 적용성이 수치 시뮬레이션에 의해 검증된다.

Keywords

References

  1. Motosaka, M. and Nagano M. 'Recursive evaluation of convolution integral in nonlinear soilstructure interaction analysis and its applications,' Journal of Structural and Construction Engineering (AIJ) 1992; 436: pp. 71-80 (in Japanese) https://doi.org/10.3130/aijsx.436.0_71
  2. Motosaka, M. and Nagano M., 'Dynamic partial uplift analysis of a structure on a 3-D layered half-space based on recursive evaluation of interaction forces using dynamic stiffness of the unbounded soil in the frequency domain,' Journal of Structural and Construction Engineering (AIJ) 1993; 451: pp. 79-88(in Japanese) https://doi.org/10.3130/aijsx.451.0_79
  3. 日本建築学会 : 入門. 建物と地盤との動的相互作用, 1996. pp. 288-301
  4. John P. Wolf,. Foundation Vibration Analysis Using Simple Physical Models, Prentice Hall, 1994
  5. 中村尙弘 : 多層地盤上の剛基礎のインピーダンスの簡便な評價法と建屋の時刻歷應答解析への應用 ' 日本建築学会構造系論文報告集, 第544号, pp.23-30, 2001年 6月
  6. Konagai, K., Nogami, T and Katsukawa, T., 'Suzuki T., Mikami A., Real time control of shaking table for soil-structure interaction simulation,' Journal of Structural Mechanics and Earthquake Engineering, 1998; 598/I-44: pp. 203-210 (in Japanese)
  7. Lee, S. K., Motosaka, M and Sato, T., 'Simulation of Shaking Table Test of Soil-Structure-Interaction System Based on Nonlinear Substructure Method,' Proceedings of AIJ conference, 2001; B-2: pp. 881-882 (in Japanese)
  8. Eugene, M. Grabbe, Simon, Ramo and Dean, E. Wooldridge, Handbook of Automation, Computation, and Control Volume 2 Computers and Data Processing, John Wiley & Sons, 1959
  9. 內山泰宏 '山內佳門 '上野和良 '藤田政之 : 適用フィルターを付加した2自由度制御系による動電型加振機の制御 '計測自動制御学会 '第42回自動制御連合講演会 'SS26 ', 1999年11月
  10. 杉江俊治 '藤田政之 : フィードバック制御入門 'コロナ社, 1990, pp. 168-178
  11. システム制御情報学会 : 制御系設計 '朝倉書店 ' 1994. pp. 159-180
  12. Bahram, Shahian and Michael, Hassul Control System Design Using MATLAB, Prentice Hall, 1993, pp. 395-440
  13. A. M. Reinhorn, T. T. Soong, R. C. Lin and M. A. Riley 'Active Bracing System:A Full Scale Implementation of Active Control,' Technical Research Laboratory NCEER-92-0020, August 14, 1992