| 摘要 |
PROBLEM TO BE SOLVED: To rationally join a column of a concrete-filled steel pipe structure to a pile. SOLUTION: In the junction structure between the column 3 of the concrete- filled steel pipe structure formed by filling concrete 2 into a steel pipe 1, and the pile 7, such as a PC pile, a cast-in-place concrete pile, a lower end 1a of the steel pipe 1 of the column 3 is installed on a pile head portion 7a of the pile 7, and the pile head portion 7a is inserted into the steel pipe 1, whereby pile main reinforcements 11 protruding from the pile head are anchored in the concrete 2 filled in the steel pipe 1. The pile head portion 7a inserted into the steel pipe 1 also functions as a column base portion of the column 3. A lower end 1a of the steel pipe 1 installed on the pile head portion 7a also functions as a shearing reinforcing member of the pile head portion 7a.
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