UNBONDED TYPE PRECAST STEEL PIPE CONCRETE POLE STRUCTURE

摘要

PURPOSE:To make a pole constructible in an efficient manner by forming lining concrete via each separate material, and connecting each steel pipe provided with an axial deformation absorbing part through coupling plates installed in both upper and lower parts and having a through hole each. CONSTITUTION:Beam connection flange-cum-upper and lower coupling plates 8, 8 and 11, 11 with respective through holes 7, 7 and 10, 10 are installed in each steel pipe 2 provided with lining concrete 3 in its inner circumferential surface via each separate material. In addition, a deformation absorbing part A absorbing any axial deformation is set up in a required spot. Then, respective unbonded type precast steel pipe concrete poles 1 built in top and bottom are connected to each other by connecting both these coupling plates 8, 8 and 11, 11 to connecting members 13. In this connection, when charging concrete is placed in the inner part of each steel 2, at least one side of both these through holes 7, 7 and 10, 10 is formed to be smaller in diameter than an inner diameter of each lining concrete 3, making it transfer the axial load to the charging concrete.