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A tensioning and anchoring device for beams reinforced with multi-layer prestressed fiber cloth

An anchoring device and fiber cloth technology are applied in the field of tensioning and anchoring devices of multi-layer prestressed fiber cloth reinforced beams, which can solve the problems of unequal lengths of multi-layer fiber cloths, cumbersome construction methods, low anchoring efficiency, etc. Convenience, good reinforcement effect, and the effect of improving anchorage reliability

Active Publication Date: 2020-12-22
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The multi-layer prestressed fiber cloth reinforced concrete structure has the problems of unequal length of multi-layer fiber cloth, uneven stress, cumbersome construction methods and low anchoring efficiency. In order to solve the above problems, the technical solution adopted by the present invention is:

Method used

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  • A tensioning and anchoring device for beams reinforced with multi-layer prestressed fiber cloth
  • A tensioning and anchoring device for beams reinforced with multi-layer prestressed fiber cloth
  • A tensioning and anchoring device for beams reinforced with multi-layer prestressed fiber cloth

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Embodiment

[0052] Such as Figure 1-28 As shown, this embodiment utilizes a tensioning and anchoring device for a multi-layer prestressed fiber cloth reinforced beam of the present invention, takes a reinforced concrete beam as the reinforcement object, and adopts eight layers of prestressed carbon fiber cloth to reinforce it, and the width of the carbon fiber cloth is 150mm, as follows:

[0053]A tensioning and anchoring device for multi-layer prestressed fiber cloth reinforced beams, including a fixed end support 1A, a tension end support 1B, a fixed end anchor 2A, a tension end anchor 2B, two Clip 3, two anchor short screws 6A, two anchor long screws 6B, eight chemical bolts 7, fiber cloth 8, prestressing frame 4 and jack 5.

[0054] Such as Figure 4 As shown, the fixed end support 1A is T-shaped. There are four oval through-holes I1A1 for installing chemical bolts 7 on it, and a circular anchor hole I1A2 for connecting with fixed-end anchorage 2A on each side.

[0055] Such as ...

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Abstract

The invention discloses a tensioning and anchoring device for multi-layer prestressed fiber cloth reinforced beams. Including fixed end support, tension end support, fixed end anchor, tension end anchor, clip, anchor long screw, anchor short screw, chemical bolts, fiber cloth, prestressing frame and jack. The fixed-end support and the tension-end support are T-shaped, and the fixed-end anchor and the tension-end anchor are in the shape of a cuboid. The fixed end support and tension end support are fixed to the beam to be strengthened by chemical anchor bolts. The anchor at the fixed end is connected with the support at the fixed end through a short anchor screw. The tension end anchor is connected with the tension end support through the anchoring long screw rod. The fiber cloth is clamped by two clips and wedged into the wedge-shaped through-slit in the tension end anchor to realize the anchoring of the fiber cloth. The tensioning and anchoring device of the present application is simple in structure, easy to operate, and the multi-layer fiber cloth is evenly stressed, and high prestress can be applied, and the prestress applying frame can be used repeatedly.

Description

technical field [0001] The invention relates to a tensioning and anchoring device for multi-layer prestressed fiber cloth reinforced beams. The device can be used to strengthen concrete beams and belongs to the field of building and bridge engineering reinforcement. Background technique [0002] Fiber composite reinforced materials have the characteristics of high unidirectional tensile strength, light weight, high elastic modulus, small volume, and corrosion resistance. After reinforcement, the cross-section and load of the original structural members do not increase significantly, so they are widely used in concrete structures. Reinforcing. In the prior art, most of the non-prestressed reinforcement methods are used, or only a single layer of prestressed fiber cloth is used to strengthen the concrete structure. For multi-layer prestressed fiber cloth reinforced concrete beams, there are fewer tension anchor devices and the applied prestress is relatively low. small. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00E01D2/04
CPCE01D2/04E01D22/00
Inventor 卢春玲李柏林王强朱万旭
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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