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Adhesive type anchoring method suitable for one-way FRP tensile member

An anchoring method and bonded technology, applied in the direction of building components, structural elements, building reinforcements, etc., can solve the problems of poor ductility, low shear strength, and difficult anchorage of unidirectional FRP tension members, etc., to achieve increased The effect of increasing the bonding surface area, improving applicability, and increasing the bonded anchorage area

Pending Publication Date: 2022-01-07
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, FRP has low shear strength and poor ductility
This makes the unidirectional FRP tension members not easy to anchor

Method used

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  • Adhesive type anchoring method suitable for one-way FRP tensile member
  • Adhesive type anchoring method suitable for one-way FRP tensile member
  • Adhesive type anchoring method suitable for one-way FRP tensile member

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The following description of an exemplary embodiment is merely illustrative in nature and is by no means intended to limit the invention and its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0030] At the same time, it should be understood that, for the convenie...

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Abstract

The invention discloses an adhesive type anchoring method suitable for a one-way FRP tensile member. The method comprises the following steps of firstly, dissolving and removing a polymer matrix within the designed length range of the end of the one-way FRP tensile member by using a solvent, and leaving fibers to form the one-way FRP tensile member without the polymer matrix at the end; and inserting the one-way FRP tension member without the polymer matrix at the end into a sleeve, and then injecting an adhesive into the sleeve, so that an adhesive type anchoring structure for directly adhering the fibers is formed. According to the adhesive type anchoring method for the one-way FRP tensile member, the polymer matrix at the end of the one-way FRP tensile member is removed, and the fibers are directly adhered, so that the adhesion anchoring area of FRP can be greatly increased, the anchoring efficiency is improved, the anchoring length is shortened, the anchoring potential of the same one-way FRP tensile member is exerted to the maximum extent, the anchoring performance of the FRP is remarkably improved, the anchoring cost is reduced, and the applicability of an inhaul cable or a prestressed tendon composed of the one-way FRP tension member is improved.

Description

technical field [0001] The invention relates to an anchoring method for a unidirectional FRP (fiber reinforced polymer) tension member, belonging to the technical fields of civil engineering and composite materials. Background technique [0002] Fiber Reinforced Polymer (FRP for short) is a high-performance composite material made of high-performance fibers as reinforcements, high-molecular polymers as a matrix, and compounded by various molding processes. Commonly used high-performance fibers include carbon fiber, glass fiber, aramid fiber and basalt fiber, and commonly used polymers include epoxy resin, unsaturated polyester resin, phenolic resin and polypropylene resin. FRP has excellent characteristics such as light weight, high strength, and corrosion resistance. It is suitable for making cables or prestressed tendons to bear tension in structures, replacing traditional steel cables or steel prestressed tendons, and improving the mechanical properties and durability of ...

Claims

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Application Information

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IPC IPC(8): E04C5/12E04C5/16
CPCE04C5/12E04C5/16
Inventor 刘越岳清瑞韦青
Owner BEIJING UNIV OF TECH
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