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FRP bar stretching and anchoring device

An anchoring device and tensioning device technology, which is applied in building maintenance, processing of building materials, structural elements, etc., can solve the problems of low shear strength and unsuitable bending.

Inactive Publication Date: 2012-05-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the material performance of FRP reinforcement is low in shear strength, so it is not suitable for bending

Method used

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  • FRP bar stretching and anchoring device
  • FRP bar stretching and anchoring device
  • FRP bar stretching and anchoring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Such as figure 1 As shown, the FRP tendon tensioning and anchoring device in this embodiment includes an anchoring device 1 for anchoring FRP tendons and a tensioning device 2 for tensioning FRP tendons.

[0032] The anchoring device 1 includes an anchoring frame 1-1, a sleeve 1-2 and a nut 1-3.

[0033] The anchor frame 1-1 is fixedly connected to one end of the component to be reinforced. One end of the FRP tendon 3 is anchored and connected to the sleeve 1-2. External threads are provided on the outer surface of the sleeve 1-2, and the sleeve 1-2 is inserted on the anchor frame 1-1. The nut 1-3 is threadedly connected to the sleeve 1-2, and is used for limiting the position of the sleeve 1-2. The other end of the FRP tendon 3 can be connected to the other end of the member to be reinforced by another set of anchoring devices, or can be fixedly connected to the member to be reinforced by other methods.

[0034] Such as Figure 2A , Figure 2B and Figure 2C As ...

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PUM

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Abstract

The invention discloses an FRP bar prestressed stretching and anchoring device. The stretching and anchoring device comprises an anchoring device used for anchoring an FRP bar and a stretching device used for stretching the FRP bar, wherein the anchoring device comprises an anchoring frame, a sleeve and a limit component; the anchoring frame is fixedly connected in an anchoring area at the end ofa component to be reinforced; the sleeve penetrates on the anchoring frame and is used for anchoring the FRP bar; the limit component is connected with the sleeve and is used for limiting the sleeve after stretching the FRP bar; and the stretching device comprises force application equipment and a soft cable, wherein the force application equipment is connected with the sleeve through the soft cable and is used for applying a traction force for stretching the FRP bar. By using the device, the FRP bar can be simply and conveniently stretched and anchored after being stretched.

Description

technical field [0001] The invention relates to a tension anchoring device for applying prestress to FRP tendons. Background technique [0002] External prestressing technology is more and more widely used in the current reinforcement market, but there are still some problems. The traditional external prestressed steel strand reinforcement technology is the most widely used, but it has disadvantages such as poor durability and poor corrosion resistance. Fiber reinforced composite (FRP) has excellent properties such as light weight, high strength, durability and good corrosion resistance. It has been widely used in civil engineering as a material to replace steel strands and steel bars in civil engineering. , but it is not widely used in prestressing. The main reason is that the material performance of FRP reinforcement is low shear strength, which is not suitable for bending. Therefore, the anchoring and tensioning technology of FRP tendons is particularly important. In o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C5/12E04G23/02E04G21/12
Inventor 吴智深吴刚蒋剑彪张敏
Owner SOUTHEAST UNIV
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