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Method for rein forcing concrete structure by top push type prestress carbon fibre cloth and use

A carbon fiber cloth and prestressing technology, which is applied in building maintenance, building structure, construction, etc., can solve the problems of easy overall failure, popularization and application, change of shape size, and inconspicuous bearing capacity, so as to achieve easy guarantee of reinforcement quality and reduce structure Reliable effect of deformation and anchorage measures

Inactive Publication Date: 2007-04-11
葛培中
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the conventional carbon fiber cloth pasting method that it can only participate in the work when it is stressed twice, the bearing capacity is not significantly improved, and the material performance is less. Due to the defects of obviously changing the shape size, easy overall failure and difficulty in popularization and application, a technology for reinforcing concrete structures with push-type prestressed carbon fiber cloth is provided. The tensile stress can reach about 60% of the strength of carbon fiber cloth, and the construction method is simple. , the tensile stress control is intuitive, not only can improve the bearing capacity of the component, but also can significantly reduce the material cost

Method used

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  • Method for rein forcing concrete structure by top push type prestress carbon fibre cloth and use
  • Method for rein forcing concrete structure by top push type prestress carbon fibre cloth and use
  • Method for rein forcing concrete structure by top push type prestress carbon fibre cloth and use

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention is further described, and this construction method is very clear to being engaged in the professional people of structural reinforcement.

[0024] a. Repair and smooth the surface of the reinforced component (3) first:

[0025] Remove the inferior layer of the reinforced member (3), repair it, and polish it to be smooth without leaving grooves.

[0026] b. Paste the fixed end and tension end as shown in Figure 1:

[0027] First install the anchor bolt (1) at the fixed end, brush the special glue for carbon fiber cloth on the anchoring area, paste one end of the cut carbon fiber cloth (4) on the component (3), then press the flat anchor plate (2), and tighten the anchor Bolt (1) nut to make it stick firmly and become the anchor end; one side of the special-shaped anchor plate (5) is flat, and the other side can be connected and fixed with the push plate (7). Brush glue on the flat side of the The oth...

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Abstract

The present invention relates to method of reinforcing concrete structure with top pushed pre-stressed carbon fiber cloth and its application. The method includes the following steps: fixing one end of the carbon fiber cloth to the concrete structure and adhering the other end to anchor plate and fixing to the pushing board to form the stretching end; brushing special glue to the surface of concrete structure, controlling the interval between the stretching end and the concrete structure with the limiting board, and pushing the stretching end forward with the pushing device the stretch the carbon fiber cloth; reaching the stress and regulating the limiting board to make the stretching end adhering the surface of the concrete structure; and disassembling the pushing device, the limiting board and the pushing board after curing. The present invention can reach excellent reinforcing effect.

Description

[technical field] [0001] The invention relates to the technical field of reinforcing concrete structures with fiber composite materials, in particular to a method and application of carbon fiber cloth reinforcing concrete structures. [Background technique] [0002] Carbon fiber cloth reinforced concrete structure is a technology that has only gradually developed in China in recent years. The production technology of domestic carbon fiber raw materials is not yet qualified. Almost all carbon fiber precursors used for engineering reinforcement rely on imports. Due to the restrictions of importing countries, The price of imported raw silk has risen sharply. Fiber composite materials have the advantages of high strength, light weight, strong weather resistance, convenient construction, and almost no increase in component cross-section. Composite fiber cloth has become an ideal reinforcement material, so the annual import of raw silk has also doubled. At present, the constructio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
Inventor 葛培中孙海
Owner 葛培中
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