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Steel strand retractor

A steel strand and tractor technology, applied in the field of construction tools, can solve the problem that the steel strand is difficult to pass through the corrugated pipe quickly, and achieve the effect of increasing the construction speed

Inactive Publication Date: 2007-07-25
BEIJING URBAN CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a steel strand puller, which mainly solves the problem that the steel strand is difficult to pass through the bellows quickly in the construction of super-long post-tensioned prestressed concrete structures

Method used

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  • Steel strand retractor

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Embodiment Construction

[0020] Referring to Figures 1-4 for the embodiment, this steel strand puller includes an anchoring body and a pull ring connecting the steel strands. The anchoring body is a cylinder 2 with a conical shape inside and the small head of the cone facing the pulling direction. Two wedge-shaped clips 5 for clamping the pulling tendons are installed inside the cylinder body. The outer wall of the clips has stirrup grooves, and the clips are hooped together by stirrups 6 . The inner wall of the clip is hooped on the outer periphery of the pulling rib 1, and the pulling rib extends to the outside of the cylinder along the pulling direction (direction of the arrow), and a pulling rib 7 is fixedly connected to the outer wall of the cylinder, and the pulling rib extends in the opposite direction of the pulling , the end of the tension tendon is in the shape of a pull ring, and the pull ring 3 is connected with the drawn steel strand 4 in a loop. The pulling tendons 1 above can be steel w...

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Abstract

The present invention relates to a stranded wire puller. It includes an anchor main body and a pulling ring connected with stranded wire. It is characterized by that said anchor main body is made into the form of cylinder body whose interior is formed into cone form. In the interior of said anchor main body two clips and one pull rib are mounted, the end portion of said pull rib is connected with pulling ring. Said invention can be used in the superlong post-stressed concrete construction, and can be used for making stranded wire be smoothly passed through corrugated pipe.

Description

(1) Technical field [0001] The invention relates to a construction tool, in particular to a steel strand puller for pulling steel strands. (2) Background technology [0002] In the construction of ultra-long post-tensioned prestressed concrete structures, the number of steel strands in the bellows is relatively large. Since the steel strand is relatively soft and difficult to pass through the corrugated pipe, the construction and installation process of threading and pulling is generally adopted during construction. The traditional installation process has poor installation effect and slow installation speed. (3) Contents of the invention [0003] The purpose of the present invention is to provide a steel strand puller, which mainly solves the problem that the steel strand is difficult to pass through the corrugated pipe quickly during the construction of an ultra-long post-tensioned prestressed concrete structure. [0004] The object of the present invention is achieved...

Claims

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Application Information

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IPC IPC(8): E04C5/12E04G21/12
Inventor 张柏堂段先军梁丰李建华
Owner BEIJING URBAN CONSTR GROUP
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