| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforced concrete structure in which an extension pillar can be connected on a pillar, simply and reliably.SOLUTION: A reinforced concrete structure includes a pillar lower end joining part 4 for connecting a lower end of the extension pillar on an upper end of a pillar 2 of a reinforced concrete construction. The pillar lower end joining part 4 includes a pillar main reinforcement connection part 10 for connection with a pillar main reinforcement projecting downward from the lower end face of the extension pillar. The pillar main reinforcement connection part 10 includes: a bottomed hole 12 opened on an upper end surface 41 of the pillar lower end joining part 4 for inserting the pillar main reinforcement projecting downward from the lower end face of the extension pillar and extending downward; a connecting reinforcement 11 extending upward from the upper end of the pillar main reinforcement 11A provided to vertically extend in the inside of the pillar 2 of the reinforced concrete structure 1, and provided so that an upper end 43 is positioned downward across concrete 9 from the bottom (bottom surface 42) of the bottomed hole 12; and a spiral reinforcement 13 provided in the inside of the pillar to vertically extend in a spiral shape around a periphery of the bottomed hole and the periphery of the connecting reinforcement. |
