Browse > Article
http://dx.doi.org/10.5574/KSOE.2011.25.6.035

Evaluation of Bearing Capacities of Large Size Non-welded Composite Piles by 3-Dimensional Numerical Analysis  

Park, Jae-Hyun (Geotech. Eng'g Research Div., SOC Research Inst., KICT)
Kim, Sung-Ryul (Dept. of Civil Eng., Dong-A University)
Le, Chi-Hung (Dept. of Civil Eng., Dong-A University)
Chung, Moon-Kyung (Geotech. Eng'g Research Div., SOC Research Inst., KICT)
Publication Information
Journal of Ocean Engineering and Technology / v.25, no.6, 2011 , pp. 35-41 More about this Journal
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.
Keywords
Large size PHC pile; Non-welded composite pile; Finite element analysis; Bearing capacity; Pile load test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김남익, 서영교 (2007). "샌드쿠션을 고려한 말뚝지지 전면기초의 수치해석", 한국해양공학회지, 21(5), pp 25-32.   과학기술학회마을
2 김동민 (2010). 현장시험을 통한 복합말뚝의 수평거동특성에 관한 연구, 박사학위논문, 상지대학교 일반대학원.
3 김성렬 이주형, 박재현, 정문경 (2009). "수치해석을 이용한 강 관합성말뚝의 보강효과 분석 (I)-재료강도", 대한토목학회논문집, 26(11), pp 29-38.
4 김홍택, 이명재, 박지웅, 윤순종, 한연진 (2011). "수치해석을 통한 FRP 콘크리트 합성말뚝 적용성 평가", 한국지반환경공학회논문집, 12(8), pp 59-67.
5 박재현, 유찬호, 신윤섭, 황의성, 이진영, 정문경 (2010). "수평하중을 받는 대구경 무용접 복합말뚝의 횡방향 거동분석", 대한토목학회 정기학술대회 논문집, pp 1058-1061.
6 선석윤 (2007). 복합말뚝의 수평 거동 분석, 석사학위 논문, 서울시립대학교 산업대학원.
7 연세대학교 (2009). 재하시험 및 수치해석을 통한 무용접 복합 말뚝 거동 특성 연구, 삼표이앤씨(주) 연구보고서.
8 파일테크(주), 두산중공업(주), (주)한맥기술, (주)한국종합기술 (2008). 강관말뚝과 PHC말뚝을 결합구로 용접시킨 매입형 복합말뚝의 설계 및 시공 방법, 건설신기술 제556호.
9 ABAQUS (2010). User's Manual. Version 6.10-1.
10 Chen, W.F. (1982). Plasticity in Reinforced Concrete, Mc Graw-Hill.
11 Fellenius B.H. (2004). "Unified Design of Piled Foundations With Emphasis on Settlement Analysis", Geo-Trans Conference, Los Angeles, ASCE Geotechnical Special Publication 125, pp 253-275.
12 Mansur, C.I. and Kaufman, J.M. (1956). "Pile Tests, Low-Sill Structure, Old River, Louisiana", Journal of Soil Mechanics and Foundation Division, ASCE, 82(SM5), pp 1-33.
13 Pott, D.M. (2003). Numerical analysis: a virtual dream or practical reality?. Geotechnique, Vol 53(6), pp 535-573.   DOI
14 Shin, Y.S. (2011). Nonlinear behavior of mechanical jointed composite pile by field load tests and numerical analyses, Ph.D. dissertation, Seoul National University.