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Device for reinforcing concrete beam slab by pretension carbon fiber plate and construction method

A carbon fiber board and concrete technology, which is used in building maintenance, building material processing, construction, etc., can solve problems such as large volume and concrete beam damage, and achieve the effect of small volume, avoiding waste and shortening construction date.

Inactive Publication Date: 2012-03-07
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Furthermore, in the original device, angle steel needs to be installed on both sides of the concrete beam, which is large in size and has a certain destructive effect on the concrete beam

Method used

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  • Device for reinforcing concrete beam slab by pretension carbon fiber plate and construction method
  • Device for reinforcing concrete beam slab by pretension carbon fiber plate and construction method
  • Device for reinforcing concrete beam slab by pretension carbon fiber plate and construction method

Examples

Experimental program
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Embodiment Construction

[0027] see Figure 1a , Figure 1b , Figure 2a Figure 2b with image 3 , the structure in this example is set to:

[0028] At the two ends of the bottom surface of the concrete beam slab 3 close to the end positions, there are respectively fixed end embedding grooves and tension end embedding grooves; In the end embedding groove and the tension end embedding groove; on the tension end base steel plate 6, along the direction of the carbon fiber plate 2, respectively set the tension end fixed anchor 5, the jack support 7 and the tension fixture 10, and the tension fixture 10 The base steel plate 6 at the tension end is movable along the tension direction; the jack 8 is pushed on the tension fixture 10 along the tension direction of the carbon fiber plate 2; the fixed end of the carbon fiber plate 2 is clamped in the fixed end anchorage 1, The tension end of the carbon fiber plate 2 is clamped in the tension fixture 10 through the tension end fixed anchor 5 and the jack sup...

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Abstract

The invention discloses a device for reinforcing a concrete beam slab by a pretension carbon fiber plate and a construction method, and is characterized in that: a fixed end rabbet and a tension end rabbet are formed on two ends, which are close to the end positions, on the bottom surface of the concrete beam slab respectively; a fixed end anchor device and a tension end base steel plate are fixedly arranged in the fixed end rabbet and tension end rabbet respectively through bolts; a tension end fixing anchor device, a jacking bracket and a tension clamp are arranged on the tension end base steel plate along the carbon fiber plate; the tension clamp is movable on the tension end base steel plate in the tension direction; the jacking bracket is pressed against the tension clamp in the tension direction of the carbon fiber plate; the fixed end of the carbon fiber plate is clamped in the fixed end anchor device; and the carbon fiber plate passes through a tension end anchor device and the jacking bracket and is clamped in the tension clamp. The invention can effectively reduce the construction period.

Description

technical field [0001] The invention relates to the field of building construction, more specifically to a device and a construction method for reinforcing a concrete beam plate with a pre-tensioned carbon fiber plate. Background technique [0002] In order to reinforce the concrete flexural components of old buildings, to eliminate potential safety hazards and prolong service life, the existing technology is to paste carbon fiber sheets with high strength and low volume and self-weight on the tensile surface of concrete beams and slabs. In order to improve the service strength of the carbon fiber sheet, it is necessary to pre-tension the sheet to reinforce the concrete beam slab with the prestressed carbon fiber sheet, which can effectively improve the flexural bearing capacity and stiffness of the component. Among the various pre-tensioning methods at present, the beam-on-beam tensioning method requires less equipment and is light and handy. However, the existing several t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/12E04G23/02
Inventor 高鹏殷惠君李守继王静峰
Owner HEFEI UNIV OF TECH
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