Prestressed concrete pole as well as mold and manufacturing method thereof

Abstract

The invention provides a prestressed concrete pole which comprises a reinforcement skeleton and concrete and is characterized in that the reinforcement skeleton is composed of two end plates at the two end respectively; each end plate is composed of a steel plate ring and an anchoring disc; stretching screw holes which are uniformly distributed on the circumference of each anchoring disc are formed in each anchoring disc; prestressed main reinforcement holes are formed beside the corresponding stretching screw holes are formed in each anchoring disc, communicate with the corresponding stretching screw holes and are internally provided with corresponding prestressed main reinforcements longitudinally; a spiral reinforcement is welded on each prestressed main reinforcement in a surrounding manner; a steel tube is pre-buried in the reinforcement skeleton transversely; and concrete is poured in the reinforcement skeleton. The prestressed concrete pole has the beneficial effects that after the prestressed concrete pole stretches, prestress is uniformly distributed without loss, and a longitudinal crack generated due to prestress eccentricity is prevented; through actual measurement, the crack resistance check coefficient is 2.0, the bearing capacity check moment is 75Kn.m, the deflection is 18mm, and the crack resistance check coefficient, the bearing capacity check moment and the deflection are all superior to the national standard; and in addition, the structure of the prestressed concrete pole can realize simultaneous multi-segment stretching.

Description

technical field [0001] The invention relates to the field of power transmission, in particular to a prestressed concrete pole, a mold and a manufacturing method thereof. Background technique [0002] The steel bars of traditional concrete poles are carbon steel wires, which are manually bound by the workers, and then the skeleton is manually welded, and the head is cold-headed manually. Pulling, uneven distribution of prestress, so that the stress loss is large, resulting in low product quality; secondly, it is easy to cause eccentricity of the main rib due to prestress, resulting in longitudinal cracks in the pole. Contents of the invention [0003] In order to improve product quality, the invention proposes a prestressed concrete electric pole, a mold and a manufacturing method thereof. [0004] This kind of prestressed concrete pole includes a steel frame and concrete, and is characterized in that the steel frame includes end plates at both ends, and the end plates are...

AI Technical Summary

Problems solved by technology

[0002] The steel bars of traditional concrete poles are carbon steel wires, which are manually bound by the workers, and then the skeleton is manually welded, and the head is cold-headed manually. Stretching, uneven distribution of prestress, such that the stress loss is large, resulting in low product quality; secondly, it is easy to cause eccentricity of the main rib due to prestress, resulting in longitudinal cracks in the pole

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