Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Optimal Design of Integrated Control System Considering Soil-Structure Interaction

지반-구조물 상호작용을 고려한 복합제어시스템의 최적설계

  • Park, Kwan-Soon (Department of Architectural Engineering, Dongguk University) ;
  • Park, Jang-Ho (Department of Civil System Engineering, Ajou University)
  • 박관순 (동국대학교 건축공학과) ;
  • 박장호 (아주대학교 건설시스템공학과)
  • Received : 2011.12.19
  • Accepted : 2012.04.05
  • Published : 2012.04.30
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Abstract

For the vibration control of earthquake-excited buildings, an optimal design method of integrated control system considering soil-structure interaction is studied in this paper. Interaction between soils and the base of the building is simply modeled as lumped parameters and equations of motion are derived. The equations of motion are transformed into the state space equations and the probabilistic excitations such as Kanai-Tajumi power spectral density function is introduced. Then an optimization problem is formulated as finding hybrid or integrated control systems which minimizes the stochastic responses of the building structure for given constraints. In order to investigate the feasibility of the optimization method, an example design and numerical simulations are performed with tenstory building. Finally, numerical results are compared with a conventional design case that soil-structure interaction is not considered.

Keywords

References

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