| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete product for which bars are arranged so as to obtain more effective breaking strength at an enlarged diameter part in a concrete body part for which a base cylinder part and the enlarged diameter part are integrally molded.SOLUTION: In a concrete body part 12, an enlarged diameter part 15 is integrally molded at one end of a base cylinder part 13. For a plurality of axial direction bars 16 arranged at prescribed pitches in a circumferential direction inside the concrete body part 12, a straight bar arrangement part 17 is arranged inside the base cylinder part 13 and a tapered bar arrangement part 18 is arranged in an expanding shape inside the enlarged diameter part 15 through a ring bar 19. A ring-like base cylinder side end face metal fitting 21 for fixing the straight bar arrangement part 17 is provided on an end face of the base cylinder part 13 of the concrete body part 12, and a ring-like enlarged diameter side end face metal fitting 24 having an outer diameter and an inner diameter larger than those of the base cylinder side end face metal fitting 21 for fixing the tapered bar arrangement part 18 is provided on an end face of the enlarged diameter part 15. |
