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Prestressed high-strength steel wire mesh anchorage device

A high-strength steel wire and prestressing technology, applied in bridge erection/assembly, bridge maintenance, bridge reinforcement, etc., can solve the problems of the steel wire rope not reaching the limit tension, wire rope damage, anchor cup deformation, etc., and achieve reliable anchoring performance and convenient centering , the effect of loss reduction

Inactive Publication Date: 2011-01-12
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the traditional clip-type anchorage, the cone angle of the clip and the anchor cup is the same. During the tensioning process of the anchor, as the tension increases, the force of the clip against the anchor cup also increases, so that the anchor cup Deformation occurs, causing the cone angle to become larger, so that the force uniformly distributed along the entire length of the clip is concentrated to the small end of the clip, resulting in the wire rope being shallow at the large end and deep at the small end of the clip mark along the entire length of the clip, so that the wire rope does not reach the specified limit Tensile force, destroyed by stress concentration on the wire rope

Method used

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  • Prestressed high-strength steel wire mesh anchorage device
  • Prestressed high-strength steel wire mesh anchorage device
  • Prestressed high-strength steel wire mesh anchorage device

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Embodiment 1

[0032] Embodiment 1. Application of prestressed high-strength steel wire mesh anchorage

[0033] Such as Figure 1 to Figure 7 As shown, the prestressed high-strength steel wire mesh anchor includes an anchor 1 , a bolt 2 , a screw 3 and a clip 4 . The anchor is a cuboid with a length of 1m, a width of 13cm, and a height of 3cm. There are 20 through-holes I(5) between the upper and lower bottom surfaces, and 33 horizontally arranged through-holes II(6) between the front and rear bottom surfaces. ; The through hole II (6) is composed of a threaded bolt area 6-1 on the wall and a high-strength steel wire rope guide area 6-2 for high-strength steel wire ropes to pass through. The outer wall of the screw 3 is provided with threads; the screw 3 is provided with a through hole III in the axial direction matching the diameter of the high-strength steel wire for the high-strength steel wire to pass through. The clip 4 is axially provided with a through hole IV matching the diameter ...

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Abstract

The invention discloses a prestressed high-strength steel wire mesh anchorage device. The prestressed high-strength steel wire mesh anchorage device provided by the invention is characterized by comprising an anchoring part (1), a bolt (2), a screw (3) and a clamping sheet (4), wherein the bolt is arranged in a through hole of the anchoring part; the screw and the clamping sheet are arranged in a through hole of the bolt and are connected with each other; and the conical angle of the clamping sheet is bigger than that of the through hole of the bolt and the difference between the two conical angles is 0.05 to 0.5 degree. The prestressed high-strength steel wire mesh anchorage device has the advantages of reliable anchoring property, sufficiency bearing capacity, durability, simple and convenient construction, capacity of instant tensioning after assembling, convenient centering process, high interchangeability, high adaptability to environments, small flat anchor capable of anchoring a plurality of high-strength steel wires at the same time and capacities of completely exerting the strength of prestressed reinforcing steel bar and realizing tensioning operation safely.

Description

technical field [0001] The invention relates to a prestressed high-strength steel wire mesh anchor. Background technique [0002] According to different anchoring methods, the existing domestic anchorages can be divided into four types: clip type, support type, cone plug type and grip wrap type. [0003] In terms of prestressed tension anchoring system, due to the patent and confidentiality of foreign technology, my country's research and production technology has been relatively lagging behind. import. Studies have shown that when the traditional clip-type anchorage is applied to the wire rope, there will be two failure modes: the wire rope slips out of the anchorage and the wire rope is pinched in the anchorage. Therefore, the clip-type anchorage should be used for the wire rope. It is necessary to transform the traditional clip-type anchorage. [0004] In the traditional clip-type anchorage, the cone angle of the clip and the anchor cup is the same. During the tensionin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12E01D22/00
Inventor 任红伟王来永庞志华向星赟
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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