한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2005년도 춘계 학술발표회 논문집
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- Pages.25-32
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- 2005
교량 말뚝기초의 단부 지점조건의 영향분석
Influence of Pile Cap's Boundary Conditions in Piled Pier Structures
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Jeong, Sang-Seom
(Dept. of Civil Engineering, Yonsei Univ.) ;
- Won, Jin-Oh (Dept. of Civil Engineering, Yonsei Univ.)
- 발행 : 2005.03.25
초록
Modeling techniques of piled pier were reviewed and the influences of pile cap's boundary conditions were analyzed in this study. Among various modeling techniques, equivalent cantilever method seems relatively simple for modeling pile groups and it has some problems to determine the virtual fixed points. Through the analyses, it was found that the method of nonlinear p-y model with soil springs was more appropriate than equivalent cantilever method. The method modeling a pile group using stiffness matrix seems useful for practical design, which can represent the nonlinear three-dimensional behavior of a piled pier. In this study, the stiffness matrix of a pile group could be estimated efficiently and precisely using three-dimensional nonlinear analysis programs of pile groups (FBPier 3.0, YSGroup).