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Title |
Shear Experiments on Concrete Filled PHC Pile with Composite Shear Connectors with Rebar Holes
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Authors |
김정회(Jeong-Hoi Kim) ; 박영식(Young-Shik Park) ; 민창식(Chang-Shik Min) |
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DOI |
https://doi.org/10.4334/JKCI.2017.29.3.259 |
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Keywords |
PHC말뚝 ; CFP말뚝 ; 전단강도 ; 합성 전단연결재 ; 속채움 콘크리트 PHC pile ; CFP pile ; shear strength ; composite shear connector ; filled concrete |
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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 reinforces shear force. CFP pile (Concrete Filled Pretensioned Spun High Strength Concrete Pile with Ring type Composite shear connectors) developed in this study increases the shear stress by placing composite shear connector and filling the concrete into hollow part of the pile. By placing the reinforcement (H13-8ea) and the reinforcement (H19-8ea) into hollow section inside of PHC piles, it also improves the shear strength due to increasing steel ratio. It reinforces shear strength effectively by dowel force that is generated by putting reinforcement (H13-8) into the holes of composite shear connectors for the composite behavior of filled concrete and PHC pile. The study was reviewed and compared the calculated result of the shear strength by limit state design method highway bridge design standards (2012) and experiment result of the shear strength by KS F 4306. We can design the shear strength reasonably as the safety ratio of 2.20, 2.15, 2.05 is shown comparing to design shear strength, according to design shear strength on each cross sections and the experiment results of the CFP pile.
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