Fig. 1. Loading - deflection graph (Composite pile vs PHC pile)
Fig. 2. Loading - deflection graph (Composite pile vs PHC pile)
Fig. 3. Results of horizontal loading test (Composite pile)
Fig. 4. Load - displacement (Composit pile vs. Steel pile)
Fig. 5. Result of L - pile program analysis
Fig. 6. Correlation between pile characteristics (β) and steel pile length
Fig. 7. Shear stress vs Permissible shear stress at joint (Abutment) - [Proposed formula]
Fig. 8. Bending stress vs Permissible bending stress at joint (Abutment) - [Proposed formula]
Table 1. Bending strength test with various types of composite pile
Table 2. Analysis of displacements of composite piles
Table 3. Maximum shear and shear stress tables
Table 4. Maximum bending moment and bending stress table
Table 5. Stress analysis table on composite pile joints
Table 7. Stress comparison table when applying existing formula vs proposed formula
Table 8. Comparison of design criteria of composite pile and field test results, numerical analysis results
Table 6. Stress analysis table on composite pile joints [Proposed formula]
References
- 국립한경대학교 건설공학연구소 (2006), HCP의 관입성 분석 및 연결부의 건전성 연구, pp. 5-24.
- 이기준 (1998), 기초공의 설계 실기(하), 건설도서, pp. 44-56, 139-159.
- 한국도로공사 (2001), 도로설계요령 3권, pp. 490-491.
- 한국지반공학회 (2010), 기초의 재하시험 방법 및 해설, 구미서관, pp. 155-193.
- 한국토지주택공사 (2009), 복합말뚝 설계적용 및 설계도서 표기방안검토, 한국토지주택공사 설계처, pp. 1-5.
- 한국표준협회 (2014), KS F 4306 프리텐션 방식 원심력 고강도 콘크리트 말뚝, 57 pp.
- Shin, Y. S. (2011), Nonlinear behavior of mechanical joints composite pile by field load tests and numerical analyses, Ph. D dissertation, The Graduate School Seoul National University, pp. 139-144 (In Korean).