Prestressed high-strength steel wire mesh anchorage device

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...

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

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