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http://dx.doi.org/10.4334/JKCI.2013.25.1.091

Flexural Strength of PHC Pile Reinforced with Infilled Concrete, Transverse and Longitudinal Reinforcements  

Bang, Jin-Wook (Dept. of Civil Engineering, Chungnam National University)
Hyun, Jung-Hwan (Dept. of Civil Engineering, Chungnam National University)
Lee, Bang-Yeon (School of Architecture, Chonnam National University)
Lee, Seung-Soo (HK ENC Co. Ltd.)
Kim, Yun-Yong (Dept. of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Korea Concrete Institute / v.25, no.1, 2013 , pp. 91-98 More about this Journal
Abstract
The pre-tensioned spun high strength concrete (PHC) pile has poor load carrying capacity in shear and flexure, while showing excellent axial load bearing capacity. The purpose of this study is to evaluate the flexural performance of the concrete-infilled composite PHC (ICP) pile which is the PHC pile reinforced with infilled concrete, transverse and longitudinal reinforcement for the improvement of shear and flexural load carrying capacity. The ICP pile specimen was designed to make allowable axial compression and bending moment higher load bearing capacity than those determined through the investigation of abutment design cases. The allowable axial compression and bending moment of the ICP pile was obtained using the program developed for calculating the axial compression - bending moment interaction. Then, ICP pile specimens were manufactured and flexural tests were performed. From the test results, it was found that the maximum bending moment of the ICP pile was approximately 45% higher than that of the PHC pile and the safety factor of ICP pile design was about 4.5 when the allowable bending moment was determined to be 25% of the flexural strength.
Keywords
PHC pile; infilled concrete; transverse rebar; longitudinal rebar; flexural strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Lee, S. H. and Kim, D. M., "An Experimental Study on Behavior of Composite Pile," Journal of the Korean Geoenvironmental Society, Vol. 11, No. 2, 2010, pp. 23-32.
2 Chun, Y. S., Park, J. B., and Sim, Y. J., "Mechanical Properties of PHC Pile Head Connection with Foundation Slab and Field Application," Magazine of the Korea Concrete Institute, Vol. 22, No. 5, 2010, pp. 71-77.   과학기술학회마을
3 Byun, G. J., "'Durability of PHC Piles and Characteristics of High Strength Concrete," 2004 KSCE Symposium on Design of PHC Pile and Construction, Construction Hall Seoul, pp. 1-25.
4 Song, T. E., "Decision Procedure in Applying PHC Piles instead of Steel Plies," Technical Magazine of Ssangyong Engineering and Construction, Vol. 48, 2008, pp. 32-36.
5 Hyun, J. H., Bang, J. W., Lee, S. S., and Kim, Y. Y., "Shear Strength Enhancement of Hollow PHC Pile Reinforced with Infilled Concrete and Shear Reinforcement," Journal of the Korea Concrete Institute, Vol. 24, No. 1, 2012, pp. 71-78. (doi: http://dx.doi.org/10.4334/JKCI.2012.24.1.071)   과학기술학회마을   DOI   ScienceOn
6 Korea Concrete Institute, Development of Design Method and Performance Evaluation of ICP (Infilled Composite PHC) Pile, 2010, pp. Appendix K.
7 Korea Concrete Institute, Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 2007, pp. 115-144.
8 Korea Concrete Institute, Concrete Design Code and Commentary, Kimoondang Publishing Company, Seoul, Korea, 2003, 387 pp.
9 Korean Geotechnical Society, Korean Foundation Design Code, 2009, 298 pp.
10 KS F 4306, "Pretensioned Spun High Strength Concrete Piles," Korean Agency for Technology and Standards, 2003, pp. 1-55.
11 KS F 4303, "Pretensioned Spun Concrete Piles," Korean Agency for Technology and Standards, 2001, pp. 1-16.
12 Choi, S. S., "A Suggestion of High Quality Concrete for PHC Pile," Magazine of the Korea Concrete Institute, Vol. 14, No. 6, 2002, pp. 41-48.   과학기술학회마을   DOI   ScienceOn
13 Hwang, Y. C. and Cho, C. H., "Pile Foundations in Korea," Journal of the Korean Geotechnical Society, Vol. 21, No. 2, 2005, pp. 8-20.