한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2010년도 추계 학술발표회
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- Pages.201-204
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- 2010
지반-구조물 상호작용 원심모형시험에 대한 수치해석
Numerical Simulation of Soil-Structure Interaction in Centrifuge Shaking Table System
- Kim, Dong-Kwan (Dept. of Architecture, Seoul National University) ;
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Park, Hong-Gun
(Dept. of Architecture, Seoul National University)
;
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Kim, Dong-Soo
(Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
;
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Lee, Sei-Hyun
(Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
- 발행 : 2010.09.09
초록
Earthquake load to design a structure has been calculated from a fixed base SDOF model using amplified surface accelerations along soft soil layers. But the method dose not consider a soil-structure interaction. Centrifugal experiments that were consisted of soil, a shallow foundation and a structure were performed to find the effects of soil-structure interaction. The experiments showed that mass and stiffness of the foundation affected a response of the structure and nonlinear behavior of soil near the foundation. And a rocking displacement caused by overturning moment affected the response and increases a damping effect. In this study, the centrifugal experiment was simulated as a two dimensional finite element model. The finite element model was used for nonlinear time domain analysis of the OpenSees program. The numerical model accurately evaluated the behaviors of soil and the foundation, but the rocking effect and the behavior of structure were not described.