Anchoring structure of FRP rib cable and construction method of anchoring structure

Abstract

The invention relates to an anchoring structure of an FRP rib cable and a construction method of the anchoring structure. The anchoring structure of the FRP rib cable comprises an anchor cup arranged on the protruding part of an FRP rib in a sleeving mode; a wire separating plate which is fixedly arranged in the anchor cup, wherein a plurality of holes are formed in the wire separating plate at intervals, and the FRP ribs correspondingly penetrate through the holes, so that set intervals are formed among the FRP ribs; an end plate which is used for blocking the through hole and is attached to the end part of the FRP rib; a first filler which is filled in the through hole; and an extension cylinder which is sleeved on the part, coated with the sheath, of the FRP rib cable and is fixed at the end part, far away from the end plate, of the anchor cup, wherein the extension cylinder is filled with a second filler. The problem that the anchoring difficulty of the large-tonnage FRP rib cable is large is effectively solved. The transverse extrusion of the anchoring filler on the FRP rib is reduced, and the wedge-shaped structure is additionally arranged at the end of the FRP rib, so that the anchoring efficiency and the overall anchoring strength of the rib cable are improved, the advantage of high strength of the FRP rib cable is fully played, and the overall reliability of a cable anchor system is improved.

Description

technical field [0001] The invention relates to the field of building and bridge construction, in particular to an anchoring structure of FRP tendons and a construction method thereof. Background technique [0002] Fiber reinforced composite (FRP), represented by carbon fiber composite (CFRP), has excellent properties such as light weight, high strength, corrosion resistance, and fatigue resistance. It is a new type of high-performance structural material. FRP materials often have ultra-high tensile strength. Making it into a tension-only cable can give full play to its tensile strength. [0003] However, the transverse compressive strength and shear strength of FRP tendons are low, and the anchorage of large-tonnage FRP tendons is difficult. At present, most FRP tendons are directly anchored by ordinary tapered anchors. This method is easy to form excessive lateral extrusion at the end of the FRP tendons, resulting in low anchoring efficiency and poor stability, and it is ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide an anchoring structure of FRP tendons and its construction method, and solve the problem of difficulty in anchoring large-tonnage FRP tendons

Images