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Title |
Pile-cap Connection Behavior Dependent on the Connecting Method between PHC pile and Footing
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DOI |
http://dx.doi.org/10.11112/jksmi.2016.20.3.025 |
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Keywords |
말뚝머리-확대기초 접합부 ; 반복가력 ; PHC말뚝 ; 합성 PHC말뚝 Pile-cap connection ; Cyclic lateral load ; PHC pile ; Composite PHC pile |
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Abstract |
The pile-cap connection part which transfers foundation loads through pile body is critical element regarding flexural and shear force because the change of area, stress, and stiffness occurs in the this region suddenly. The purpose of this study is to investigate the structural behavior of pile-cap connection dependent on fabrication methods using conventional PHC pile and composite PHC pile. A series of test under cyclic lateral load was performed and the connection behavior was discussed. From the test results, it was found that the initial rotational stiffness of pile-cap connection was affected by the length of pile-head inserted in footing and the location of longitudinal reinforcing bars. The types of pile and location of longitudinal reinforcing bars governed the behavior of pile-cap connection regarding load-carrying capacity, ductility, and energy dissipation.
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