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Pre-stressing carbon-cloth tension system and tension reinforcing method

A carbon fiber cloth, prestressing technology, applied in building maintenance, building material processing, construction and other directions, can solve the problems of inflexibility, low tensioning efficiency, complex structure, etc., to achieve simple and fast tensioning and high work efficiency , the effect of easy anchoring

Active Publication Date: 2012-06-20
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing carbon fiber cloth prestressed tensioning equipment has a complex structure, large volume, inflexibility, and low tensioning efficiency

Method used

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  • Pre-stressing carbon-cloth tension system and tension reinforcing method
  • Pre-stressing carbon-cloth tension system and tension reinforcing method
  • Pre-stressing carbon-cloth tension system and tension reinforcing method

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] figure 1 It is a schematic diagram of the structure before tensioning of the present invention, figure 2 It is a schematic diagram of the structure of the stretching completion of the present invention, image 3 It is a schematic diagram of the structure after removing the tensioning equipment, Figure 4 It is a schematic diagram after the construction is completed, Figure 5 for figure 1 Schematic diagram of the tension frame structure along the A direction, Figure 6 It is a schematic diagram of the anchorage structure of the present invention, as shown in the figure: the prestressed carbon fiber cloth tensioning system of this embodiment includes a prestressed tensioning assembly, a steering shaft 4 and a tensioning frame;

[0034] The tensioning frame is hinged to the reinforced part 1 to form a lever structure, and the steering shaft 4 is arranged on the resistance arm 5 of the tensioning frame in a manner that can rotate around its own axis; the power arm 18 ...

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Abstract

The invention discloses a pres-stressing carbon-cloth tension system and a tension reinforcing method. The pre-stressing carbon-cloth tension system comprises a pre-stressing tension assembly, a steering shaft and a tension stand; the tension stand is hinged with a reinforced assembly to form a lever structure, the steering shaft is arranged on the resistance arm of the tension stand in a manner of rotating around the axis of the steering shaft; the power arm of the tension stand is provided with a drive assembly for driving the resistance arm of the tension stand to rotate toward the surface of the reinforced assembly; and the pre-stressing tension assembly is used for connecting a carbon cloth to be tensioned around the upper part of the steering shaft and applying a tension force onto the carbon cloth to be tensioned. The pre-stressing carbon-cloth tension system disclosed by the invention is totally suitable for engineering application environment, does not need any regulation within a certain span, can perform tensioning simply, quickly and conveniently, and does not need excavating any channels on the reinforced assembly as channels for movement of clamps. A tensioning operation does not cause damage to an original concrete structure basically; a gap is reserved between the carbon cloth and the bottom of a component during tensioning, thus friction loss caused by the contact of the carbon cloth and the component is avoided, and an adhesive is conveniently coated at the same time.

Description

technical field [0001] The invention belongs to the field of building structure engineering, in particular to a prestressed carbon fiber cloth tensioning system and a tensioning reinforcement method. Background technique [0002] When concrete beams have tensile transverse cracks due to insufficient bearing capacity or external effects such as temperature changes, fatigue or impact, fiber cloth can be pasted longitudinally on the cracked surface of the beam for reinforcement to restrain the occurrence and development of transverse cracks and improve its bearing capacity. capacity and service life. [0003] Fiber cloth (especially carbon fiber) has excellent physical properties, good adhesion, durability and corrosion resistance, and has the advantages of high strength, small size, light weight, etc., and is used on the tensile surface of reinforced concrete beams It has been widely used in many aspects and has more advantages than other structural reinforced concrete struct...

Claims

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Application Information

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IPC IPC(8): E04G21/12E04G23/02
Inventor 全学友童从庆
Owner CHONGQING UNIV
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