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Carding positioner and construction method thereof

A technology of positioner and arc limit plate, which is applied in the processing of building materials, construction, building structure, etc., can solve the problem that the carding positioner cannot be firmly fixed, and achieves improved construction quality, simple operation, and firm connection. Effect

Active Publication Date: 2019-07-23
宁波冶金勘察设计研究股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the disadvantage that the prior art cannot ensure that the carding positioner is firmly fixed on the prestressed tendons, and provides a carding positioner which can ensure that the carding positioner is firmly fixed on the prestressed tendons during the traction process, thereby ensuring The prestressed tendons are evenly distributed in the pre-embedded pipe and parallel to each other, without winding or overlapping

Method used

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  • Carding positioner and construction method thereof
  • Carding positioner and construction method thereof
  • Carding positioner and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see figure 1 , a kind of carding positioner of the present invention, comprises carding disk one 1 and carding disk two 2, has a plurality of piercing rib holes one 101 and a plurality of slurry hole one 102 on the carding disk one 1, a plurality of piercing rib holes one 101 are located on the same circumference and are evenly distributed on the circumference, and the center of the circumference coincides with the center of the carding disc-1, and a plurality of slurry holes-102 are also located on the same circumference and are evenly distributed on the circumference, the circumference of the The center also coincides with the center of the carding disc one 1. There are also a plurality of second rib holes 201 and a plurality of second hole 202 corresponding to the first rib hole 101 and the first slurry hole 102 through the carding disc 2 . The center of the carding disc-1 is provided with a central hole 103, combined with figure 2 and image 3, the inner wall of...

Embodiment 2

[0047] see Figure 6 and Figure 7 , a carding positioner, the difference between this embodiment and embodiment 1 is that an internal thread 206 is provided through the center of the carding disc 2, the internal thread 206 extends to cover the inner wall of the card 203, and the internal thread 206 is threaded with a locking bolt 5.

[0048] The difference between the construction method of the prestressed tendons in the pre-embedded pipe in this embodiment and the embodiment 1 is that after step d, the locking bolt 5 is screwed in from the rear side of the internal thread 206, so that the clip 203 is fully stretched to ensure that the locking rod 3 is pressed against the outer wall of the prestressed tendon 6, thereby ensuring that the carding positioner is firmly fixed on the prestressed tendon during the traction process, and ensuring that each prestressed tendon is placed in the pre-embedded pipe during the beam passing process. Evenly distributed and parallel to each o...

Embodiment 3

[0050] A carding positioner, the difference between this embodiment and embodiment 2 or embodiment 3 is that three arc-shaped cards 203 are provided at one end of the carding disc 2 at uniform intervals around the center and circumferential direction.

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Abstract

The invention relates to the technical field of prestressed concrete construction, and discloses a carding positioner and a construction method. The carding positioner comprises a first carding disc and a second carding disc; and the key of the method is that the first carding disc and the second carding disc are fixedly connected, that is, a clamping piece on the second carding disc penetrates through a center hole from the rear side of the first carding disc and then is clamped in the end face of the front side of the first carding disc through a clamping head to enable the first carding disc and the second carding disc to be connected together, at the moment, convex strips on the clamping piece are inserted in annular grooves, the convex strips are pressed on the inner walls of rubber rings to enable locking rods to move in the direction of first tendon penetrating holes by pushing arc-shaped limiting plates till the ends of the locking rods abut against the outer walls of prestressed tendons. According to the carding positioner and the construction method, it can be ensured that in the bundle penetrating process, all the prestressed tendons are evenly distributed in embedded pipes and are parallel to one another, not wound and not laminated.

Description

technical field [0001] The invention relates to the technical field of prestressed concrete construction, in particular to a carding positioner and a construction method for prestressed tendons passing through pre-embedded pipes. Background technique [0002] In prestressed concrete construction, pre-embedded pipes should be laid before concrete pouring. The pre-embedded pipes are generally corrugated pipes, and then the concrete is poured to form channels for prestressed tendons to pass through. Penetrate through the tunnel, that is, the opening at the back end of the pre-embedded pipe, and then pass through the opening at the front end, that is, thread through the beam. After the beam is threaded, each prestressed tendon is stretched and anchored, and then cement slurry is injected into the pre-embedded pipe. The force is transmitted through the bonding between the prestressed tendons and the cement slurry. The tensioning process is to simultaneously stretch multiple prest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12
CPCE04G21/12
Inventor 张子江张俊杰朱敢为刘康唐江张丽红
Owner 宁波冶金勘察设计研究股份有限公司