| 摘要 |
PROBLEM TO BE SOLVED: To provide a basket which can certainly transmit a sectional force even under a construction condition of a low and narrow space and is easily constructed, and to provide a connection method and the structure of piles and pole members, using the basket. SOLUTION: The basket 1 has a cylindrical shape, and is composed of a plurality of strands 3 serving as axial reinforcing bars and ringlike hoop reinforcements 5 that are so arranged as to encircle the strands 3. In the basket 1, the areas of planes made by the hoop reinforcements 5 change gradually, which means that the sectional shape of the basket 1 expands gradually in diameter. When the strands 3 are bent in a direction denoted by an arrow A, the strands 3 rotate to change a cross angle between the strands 3 and the hoop reinforcements 5, which brings the strands 3 into spiral shape while gradually reducing the arrangement intervals between the hoop reinforcements 5, thus reduces the length of the basket 1. The shortened basket 1 allows construction of reinforcing bars even in a narrow space, and facilitates transportation and storage of the reinforcing bars. COPYRIGHT: (C)2007,JPO&INPIT
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