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Tensioning and anchoring device for multi-layer pre-stressed fiber cloth reinforced beam

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

Active Publication Date: 2019-07-19
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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  • Tensioning and anchoring device for multi-layer pre-stressed fiber cloth reinforced beam
  • Tensioning and anchoring device for multi-layer pre-stressed fiber cloth reinforced beam
  • Tensioning and anchoring device for multi-layer pre-stressed fiber cloth reinforced beam

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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 a multi-layer pre-stressed fiber cloth reinforced beam. The tensioning and anchoring device comprises a fixing end supporting seat, a tensioning end supporting seat, a fixing end anchorage, a tensioning end anchorage, clamping sheets, an anchoring long screw rod, an anchoring short screw rod, chemical bolts, fiber cloths, a pre-stress applying frame and a jack; each of the fixing end supporting seat and the tensioning end supporting seat is a T-shaped body, each of the fixing end anchorage and the tensioning end anchorage is in a cuboid shape, the fixing end supporting seat and the tensioning end supporting seat are fixed to a to-be-reinforced beam through the chemical bolts, the fixing end anchorage is connected with the fixingend supporting seat through the anchoring short screw rod, and the tensioning end anchorage is connected with the tensioning end supporting seat through the anchoring short screw rod; and the fiber cloths are clamped by the two clamping sheets, thus the fiber cloths are wedged into a wedge-shaped through seam in the tensioning end anchorage, and thus the fiber cloths are anchored. The tensioningand anchoring device is simple in structure and convenient to operate, the multiple layers of the fiber cloth are subjected to force evenly, the high prestress can be applied, and the pre-stress applying frame can be repeatedly used.

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 Applications(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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