A prestressed concrete pole tensioning and anchoring device

Abstract

The present invention discloses a tension and anchor device for prestressed concrete poles, which comprises tension brace, tension rod, tension head and tension and anchor plate and uses steel mould and tension jack. In the direction of circular degree of the said tension brace, four uniform support legs are set and welded with stiffening plate and end plate, and screws are set inside the end plate. At the head of the said tension rod, a tension claw is set, and at the tail connection screws are set to match with the jack piston rod. At the said tension head, prestressed steel holes are drilled, in the head a slope plate is set, and on the other end, connection screws are set to match with the anchor plate. Screws are set in the said tension and anchor plate to match with the tension head. Such tension and anchor device has a simple structure and safe and reliable connection. Steel Mould

Description

technical field [0001] The invention relates to a tensioning and anchoring device for a prestressed concrete electric pole, which belongs to the technical field of electric power transmission. Background technique [0002] With the rapid development of my country's power industry, the requirements for the bearing capacity and durability of concrete poles are getting higher and higher, especially prestressed concrete poles, which are low in price and have a long service life, and are in great demand in the market. However, prestressed concrete poles with greater bearing capacity will also bear greater tension, which puts forward higher requirements for the processing of prestressed concrete poles. During the production and processing of prestressed concrete poles, tensioning is the key process, which directly affects the product quality of the poles. [0003] A conventional tension anchoring device generally includes a tension traction member, a tension head, a fastening sup...

AI Technical Summary

Problems solved by technology

The tensioning device transmits the tension force through the connection between the tension claw and the steel plate ring. Since the tension claw is connected to the steel plate ring through a longer hook claw, under the action of a large tension force, the hook claw is easily deformed and causes the steel ring to suffer. The tension of the tension is uneven, and it is easy to cause the deformation of the tension claw and the steel ring

The tensioning device supports the steel mold through the screw rod on the fixed plate. The stress area between the screw rod and the steel mold is very small. The screw rod is easily deformed due to the high pressure, resulting in the loosening of the steel plate ring and the tension of the prestressed steel bar. The pulling effect becomes weak or even disappears, and the tightening of the screws requires each screw to be operated separately, and the process is cumbersome

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