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A kind of frp plate anchoring device and anchoring method

A technology of FRP board and anchoring device, which is used in construction, building maintenance, building reinforcements, etc., can solve the problems of FRP board crushing, slippage, inability to effectively anchor FRP wide and thick plates, etc., to avoid sliding out damage, Improve anchoring efficiency and enhance the effect of anchoring force

Active Publication Date: 2022-07-22
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems that the existing prestressed FRP plate clamp anchors cannot effectively anchor FRP wide and thick plates, and the FRP plate is prone to crushing and slipping, and proposes a layered variable stiffness anchoring system for FRP thick plates

Method used

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  • A kind of frp plate anchoring device and anchoring method
  • A kind of frp plate anchoring device and anchoring method
  • A kind of frp plate anchoring device and anchoring method

Examples

Experimental program
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Embodiment

[0065] like figure 1 , figure 2 , Figure 4 shown.

[0066] The steps of the FRP board anchoring method are as follows:

[0067] Cut BFRP with a size of 100 (width) × 5 (thickness) mm into 2 layers from the middle, and the length of the cut is 100 mm;

[0068] Insert the layered BFRP plate into the anchor plate to ensure that the large open end of the anchor plate is closer to the layered part of the BFRP plate;

[0069] Push the wedge-shaped top block made of aluminum alloy into the layered BFRP board and bond with epoxy resin;

[0070] After the resin is completely cured, the upper and lower clips are placed on both sides of the BFRP board whose ends are embedded in the wedge-shaped top block 6 and pushed into the anchor plate together. When pushing in, a jack can be used to push the variable stiffness clip, and the pushing force is the same as the calculated ultimate tensile force of the FRP plate. The finite element simulation results show that the tensile force whe...

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Abstract

The invention discloses an FRP plate anchoring device and an anchoring method, wherein the anchoring device comprises: an anchor plate, which has an isosceles trapezoid anchoring channel in cross-section; a wedge-shaped block is filled between the layers of the anchoring end of the FRP plate; The clips are filled between the upper and lower surfaces of the FRP board and the anchoring channel; the clips have different stiffnesses in the width direction of the FRP board, and the stiffness distribution law is that the stiffness decreases linearly or stepped from the middle to both ends; the metal film, It is fixed on the side of the clip in contact with the anchor plate, so as to reduce the friction between the composite clip and the metal anchor plate. The layered variable-stiffness anchor system for FRP thick plates disclosed in the invention can effectively and reliably realize the anchoring of the FRP thick plates, fully utilize the tensile strength of the FRP slats, and cause ideal burst failure.

Description

technical field [0001] The invention discloses a layered variable stiffness anchor system for FRP thick plates, which belongs to the field of composite material anchoring, and particularly relates to a layered variable stiffness anchoring method. Background technique [0002] With the development of economy, more and more completed building structures need to be reinforced and transformed to meet the new requirements. The reinforcement technology of prestressed FRP slats is a good engineering reinforcement method. Applying prestress to the FRP plate and sticking it to the tensile side surface of the reinforced structure can effectively improve the cracking load, yield load and ultimate load of the structure, reduce deflection, and improve the use efficiency of FRP materials. However, due to the high tensile strength of FRP material and weak transverse compression and shear resistance, the anchoring of FRP material is a difficult problem. [0003] At present, prestressed FRP...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E04C5/12E04C5/08
CPCE04G23/0218E04C5/122E04G2023/0251
Inventor 汪昕常鑫泉吴智深李元琪刘长源
Owner SOUTHEAST UNIV
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