| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure and a method for joining bridge piers and a footing and capable of securing sufficient quality at reasonable cost. SOLUTION: In the structure 1 for joining bridge piers and a footing, one-side ends of deformed reinforcing bars 6 are buried and anchored to the footing 4, and their other ends are buried and anchored to concrete 7 filled in the steel pipe 2. The deformed reinforcing bars 6 form a reinforced concrete body 8 together with the concrete 7. The reinforced concrete body 8 plays the role of transmitting a horizontal force acting on a top of a steel pier 3 to the footing 4 by being bent and resistant to the centrifugal distortion of the steel pipe 2 caused by the horizontal force. Since the inner surface 9 of the steel pipe 2 opposed to the deformed reinforcing bars 6 is smooth-finished, it is possible to bring the deformed reinforcing bars 6 close to the inner surface of the steel pipe 2 to a minimum distance. Since protrusions 10 are formed on the inner surface of the steel pipe 2 located above the reinforcing bars 6 for joining the steel pipes, it is possible to transmit a compressive load from the bridge pier 3 to the footing 4 via the reinforced concrete body 8 by an engaging action with the filled concrete 7. COPYRIGHT: (C)2009,JPO&INPIT
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