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

A technology for anchoring structures and construction methods, which is applied to structural elements, building components, building structures, etc., and can solve problems such as the difficulty of anchoring FRP tendons and cables

Pending Publication Date: 2022-02-08
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] refer to figure 1 , the present invention provides an anchoring structure of FRP tendons and its construction method, using the structure of the combination of straight extension tube and tapered anchor cup to extend the anchoring length and realize the whole anchoring system from straight cylindrical to inner tapered , the transition from small stiffness to high stiffness is conducive to improving the anchoring efficiency of the entire anchoring system, ensuring the efficiency and reliability of the entire anchoring system, and solving the problem of difficulty in anchoring large-tonnage FRP tendons. By reducing the lateral extrusion of the anchor filler to the FRP tendons, a wedge-shaped structure is added to the end of the FRP tendons to improve the anchoring efficiency and overall anchoring strength of the tendons, thereby giving ful...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/07E04C5/12E04C5/16E04G21/12E01D19/14E01D19/00E01D21/00
CPCE04C5/073E04C5/12E04C5/16E04G21/12E04C5/168E01D19/14E01D19/00E01D21/00
Inventor 许国文熊浩白洁亓立刚葛杰马明磊黄青隆冯俊王彬楠
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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