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Title |
Finite Element Analysis on Reinforced Concrete Filled PHC Pile with Ring Type Composite Shear Connectors
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Authors |
김정회(Jeong-Hoi Kim) ; 이두성(Doo-Sung Lee) ; 박영식(Young-Shik Park) ; 민창식(Chang-Shik Min) |
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DOI |
https://doi.org/10.4334/JKCI.2017.29.3.249 |
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Keywords |
CFP말뚝 ; 합성 전단연결재 ; PHC말뚝 ; 속채움 콘크리트 ; 유한요소해석 CFP pile ; composite shear connector ; PHC pile ; filled concrete ; finite element analysis |
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Abstract |
The purpose of this study was to contribute to the field application cost effectively and reasonably by developing the functional piles that make up for the defects of PHC piles. CFP (Concrete Filled Pretensioned Spun High Strength Concrete Pile with Ring type Composite shear connectors) piles developed in this study increases the compressive stress through enlarged cross section by rearranging composite shear connectors and filling the hollow part of PHC pile with concrete. And it improved shear and bending performance placing the rebar (H13-8ea) within the PHC pile and the hollow part of PHC pile of rebar (H19-8ea). In addition, the composite shear connectors were placed for the composite behavior between PHC pile and filled concrete. Placing Rebars (H13-8ea) of PHC pile into composite shear connector holes are sleeve-type mechanical coupling method that filling the concrete to the gap of the two members. Nonlinear finite element analyzes were performed to verify the performance of shear and bending moments and it deduced the spacing of the composite shear connectors. Through a various interpretation of CFP piles, it’s proved that the CFP pile can increase the shear and bending stiffness of the PHC pile effectively. Therefore, this can be utilized usefully on the construction sites.
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