| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining structure of a pile head part, superior in workability, and reducing a construction period and construction cost, by preventing breaking of the pile head part by reducing stress generated in the pile head part. SOLUTION: Infilling concrete 8 is filled up to the predetermined depth from a pile head surface 2a in the hollow pile head part 2, and a recessed part 5 opening on the upper side is formed in a central part of a plane cross-sectional view of the infilling concrete 8. The recessed part 5 is formed in a square cross section, and a joining member 4 composed of a square steel pipe having the substantially same cross-sectional shape as the cross section, is fitted to and inserted into the recessed part 5, and the joining member 4 is freely slid in the material axis direction of a pile 1 in the recessed part 5. The joining member 4 extends upward from the pile head surface 2a, and an extension part is buried in a foundation 3, and is integrated with the foundation 3. An isolating material 6 is interposed between a foundation bottom surface 3a and the pile head surface 2a for isolating the edge of the foundation 3 and the pile head part 2. COPYRIGHT: (C)2006,JPO&NCIPI
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