3차원 수치해석을 이용한 대구경 무용접 복합말뚝의 지지거동 분석
Evaluation of Bearing Capacities of Large Size Non-welded Composite Piles by 3-Dimensional Numerical Analysis
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Recently, as large structures, which should support large design loads have been constructed, the study on the large diameter composite pile becomes necessary. The large diameter composite pile has the diameter over 700mm and consists of two parts of the upper steel pipe pile and the lower PHC pile by a mechanical joint. In this research, to analyze the bearing capacity and the material strength of the composite pile,three dimensional numerical analyses were performed. First, the numerical modeling method was verified by comparing the calculated load-movement curves of the pile with those of the field pile load tests. Then, a total of twelve analyses were performed by varying pile diameter and loading direction for three pile types of PHC, steel pipe and composite piles. The results showed that the vertical and the horizontal load-movement curves of the composite pile were identical with those of the steel pipe pile and the horizontal material strength of the composite pile was 60-80% larger than that of the PHC pile.
Abstract
Recently, as large structures, which should support large design loads have been constructed, the study on the large diameter composite pile becomes necessary. The large diameter composite pile has the diameter over 700mm and consists of two parts of the upper steel pipe pile and the lower PHC pile by a mechanical joint. In this research, to analyze the bearing capacity and the material strength of the composite pile,three dimensional numerical analyses were performed. First, the numerical modeling method was verified by comparing the calculated load-movement curves of the pile with those of the field pile load tests. Then, a total of twelve analyses were performed by varying pile diameter and loading direction for three pile types of PHC, steel pipe and composite piles. The results showed that the vertical and the horizontal load-movement curves of the composite pile were identical with those of the steel pipe pile and the horizontal material strength of the composite pile was 60-80% larger than that of the PHC pile.
참고문헌 (14)
- 김남익, "샌드쿠션을 고려한 말뚝지지 전면기초의 수치해석", 한국해양공학회지, 21(5), pp.25~32 (2007), 한국해양공학회
- 김동민, "현장시험을 통한 복합말뚝의 수평거동특성에 관한 연구", 박사, pp.2010
- 김성렬, "수치해석을 이용한 강관합성말뚝의 보강효과 분석 (I) - 재료 강도", 대한토목학회 논문집C, 29(6), pp.259~266 (2009), 대한토목학회
- 김홍택, "수치해석을 통한 FRP 콘크리트 합성말뚝 적용성 평가", 한국지반환경공학회 논문집, 12(8), pp.59~67 (2011), 한국지반환경공학회
- 박재현, "수평하 중을 받는 대구경 무용접 복합말뚝의 횡방향 거동분석", 대한토목학회 정기학술대회 논문집, pp.1058~1061 (2010)
- 선석윤, "복합말뚝의 수평 거동 분석", 석사, pp.2007
- 재하시험 및 수치해석을 통한 무용접 복합 말뚝 거동 특성 연구, "연세대학교", 삼표이앤씨(주) 연구보고서, ~ (2009)
- 파일테크(주), "강관말뚝과 PHC말뚝을 결합구로 용접시킨 매입형 복합말뚝의 설계 및 시공 방법", 건설신기술, (556) (2008)
- ABAQUS, "User’s Manual", 1~10 (2010)
- Chen, W.F, "Plasticity in Reinforced Concrete" (1982), Mc Graw-Hill
- Fellenius B.H, "Unified Design of Piled Foundations With Emphasis on Settlement Analysis", Geo-Trans Conference, Los Angeles, ASCE Geotechnical Special Publication, 통권 : 125, pp.253~275 (2004)
- Mansur, C.I, "Pile Tests,Low-Sill Structure,Old River,Louisiana", Journal of Soil Mechanics and Foundation Division, 82(SM5), pp.1~33 (1956)
- Pott,D.M, "Numerical analysis: a virtual dream or practical reality", Geotechnique, 53(6), pp.535~573 (2003)
- Shin,Y.S, "Nonlinear behavior of mechanical jointed composite pile by field load tests and numerical analyses", Ph.D, pp.2011