Prestress wire whole bundle pulling device and construction method for pulling prestress wire harness whole body

Abstract

The invention discloses a prestress wire harness whole body pulling device including a positioning seat and a traction head. The positioning seat is a cylindrical component, and the outer diameter ofthe positioning seat is equal or slightly smaller than the diameter of a smallest circumscribed circle of steel strand harness. One end of the cylindrical component is a threaded section, the side face of the other end of the cylinder is distributed with a plurality of grooves, and a center wire of one end a heading passes through the grooves. One end of the traction head is a cylindrical sectionwith external threads, and the other end of the traction head is a joint connected with a rotary connector. Under the state of use, the pier headed steel strands in the prestress wire harness correspondingly penetrate through the grooves of the positioning seat and are arranged on the preset position of the positioning seat, the cylindrical section with the external threads of the traction head isscrewed with the threaded section of the positioning seat, the joint at the other end of the traction head is connected with one end of the rotary connector of corresponding specification, and the other end of the rotary connector is connected with a wire rope which is used for connecting with a power device. The difficult problem of the whole bundle traction of the prestressed wire harness in the programme of similar section assembled concrete wind power tower tube is effectively solved.

Description

technical field [0001] The invention relates to a construction device and a construction method thereof in the technical field of building construction, in particular to a prestressed steel strand bundle traction device and a construction method for integral traction of a prestressed steel strand bundle. Background technique [0002] In the construction of construction projects, the beam-through construction of prestressed channel steel strands is often encountered, especially in the construction of wind power tower projects. The construction of segmental assembled concrete wind power tower tubes involves the beam-through construction of prestressed channel steel strands. Pulling of prestressed steel strand bundles is required, especially there are a large number of prestressed tunnels with 6 holes or less; due to the large number of concrete segments in the wind power tower, there are staggered tunnels at the joint surface of long-distance prestressed tunnel segments The di...

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Problems solved by technology

[0002] In the construction of construction projects, the beam-through construction of prestressed channel steel strands is often encountered, especially in the construction of wind power tower projects. The construction of segmental assembled concrete wind power tower tubes involves the beam-through construction of prestressed channel steel strands. Pulling of prestressed steel strand bundles is required, especially there are a large number of prestressed tunnels with 6 holes or less; due to the large number of concrete segments in the wind power tower, there are staggered tunnels at the joint surface of long-distance prestressed tunnel segments The diameter is reduced, which makes it difficult for the prestressed steel strands to pass through the bundle; at present, the outer diameter of the whole bundle traction device in the general construction method is larger than the diameter of the minimum circumscribed circle of the steel strands, which will allow the steel strands to pass through the prestressed tunnel. Increased difficulty at concrete segment joints

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