Upper concrete pole, mold, and method for manufacturing upper concrete pole based on the same

摘要

Problem to be solved: to provide an upper concrete pole, etc. in which the joint rod is not necessary, and the joint steel pipe can be easily removed from the form.An upper concrete pole 21b that is joined with the lower concrete pole 22 to form a concrete poleUpper concrete poleCylindrical concrete Part 12The axial reinforcement 1a and the spiral reinforcement 1b which are embedded in the cylindrical concrete Part 12 and the reinforcement cage 1 are formed.A joint metal tube 2B connected to the lower part of the cylindrical concrete Part 12 andFixed to the metal pipe 2BA partition plate member 3b is provided with a lower end of the axial reinforcement 1a to be bonded and fixedAt the boundary of joint metal tube 2B and tubular concrete partIn the joint of the cylindrical concrete Part 12 and the joint metal pipeWhen the joint metal pipe 2B having the reinforcing cage 1 and the partition plate member 3b is contained in the mold 4B to form the cylindrical concrete Part 12,An outer step stepped portion 13a is formed to be in contact with the stepped portion 13b of the mold 4B.Diagram