Proceedings of the Earthquake Engineering Society of Korea Conference (한국지진공학회:학술대회논문집)
- 2002.09a
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- Pages.106-113
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- 2002
Vertical Vibration Analysis of Single Pile-Soil Interaction System Considering the Interface Spring
접합면 스프링요소를 고려한 단말뚝-지반 상호작용계의 수직진동해석
Abstract
In this study, a numerical analysis method for soil-pile interaction in frequency domain problem is presented. The total soil-pile interaction system is divided into two parts so called near field and far field. In the near field, beam elements are used for a pile and plain strain finite elements for soil. In the far field, dynamic fundamental solution for multi-layered half planes based on boundary element formulation is adopted for soil. These two fields are coupled using FE-BE coupling technique In order to verify the proposed soil-pile interaction analysis, the dynamic responses of pile on multi-layered half planes are simulated and the results are compared with the experimental results. Also, the dynamic response analyses of interface spring elements are performed. As a result, less spring stiffness makes the natural frequency decrease and the resonant amplitude increase.
Keywords
- soil-pile interaction;
- boundary element;
- finite element;
- dynamic response analysis;
- frequency domain;
- interface spring