Combined FRP(Fiber Reinforced Plastic)-self prestressed concrete structure

A fiber reinforced plastic and composite structure technology, applied in the direction of structural elements, truss structure, infrastructure engineering, etc., can solve problems such as structural parts damage, and achieve the effect of delaying cracking, reducing self-weight, and saving manufacturing costs

Active Publication Date: 2012-10-03
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the corrosion of steel bars often leads to the destruction of structural parts, resulting in the repair or even necessary replacement of structural parts

Method used

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  • Combined FRP(Fiber Reinforced Plastic)-self prestressed concrete structure
  • Combined FRP(Fiber Reinforced Plastic)-self prestressed concrete structure
  • Combined FRP(Fiber Reinforced Plastic)-self prestressed concrete structure

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Drawings: 1-fiber-reinforced plastic FRP template, 2-self-prestressed concrete, 3-reserved opening.

[0022] A fiber-reinforced plastic-self-prestressed concrete composite structure of the present invention includes: a fiber-reinforced plastic FRP formwork 1 and an intervening fiber-reinforced plastic FRP formwork 1 poured through the opening 3 reserved on the upper part of the fiber-reinforced plastic FRP formwork 1 Fully enclosed self-prestressing concrete 2.

[0023] The cross-sectional form of the combined structure is rectangular, square, I-shaped or T-shaped, and all sides of the self-prestressed concrete 2 are wrapped by the fiber-reinforced plastic FRP template 1 .

[0024] The fiber-reinforced plastic is one of glass fiber-reinforced plastic, carbon fiber-reinforced plastic, aramid fiber-reinforced plastic or the above three fiber-rei...

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PUM

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Abstract

The invention discloses a combined FRP(Fiber Reinforced Plastic)-self prestressed concrete structure, which comprises an FRP template and self prestressed concrete, wherein the self prestressed concrete is poured in through reserved openings formed at the upper part of the FRP template, is positioned between the FRP template, and is wrapped in a totally-enclosed manner. The combined FRP-self prestressed concrete structure fully utilizes and optimally combines the tensile property and the corrosion prevention performance of FRP material as well as the expansibility and the compression resistance of the self prestressed concrete, saves the connection of the FRP material and the self prestressed concrete through totally-enclosed sheathing, and achieves the self prestressed function without bar reinforcements; in addition, the combined FRP-self prestressed concrete structure achieves favorable self prestressed performance and corrosion resistance, has the advantages of delaying and reducing concrete cracking, being simple and convenient to construct and the like, and is especially suitable for structures of newly-built bridges, road surfaces, buildings and the like.

Description

technical field [0001] The invention relates to the technical fields of structural engineering and bridge engineering, in particular to a fiber-reinforced plastic-self-prestressed concrete composite structure. Background technique [0002] The two most common problems in reinforced concrete structures today are concrete cracking and steel corrosion. The main cause of cracking in beams, columns, bridge decks, pavement decks, and revetments in concrete structures is shrinkage of the concrete. At the same time, the corrosion of steel bars often leads to the destruction of structural parts, resulting in the repair or even necessary replacement of structural parts. These problems make it imperative to study innovative structures that delay and eliminate cracking and resist corrosion. Contents of the invention [0003] Purpose of the invention: In order to solve the cracking of concrete and the corrosion of steel bars, a feasible method to delay and reduce cracking of concrete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/29E04C3/34E04C5/08E01D19/12E01C5/22E02D17/20
Inventor 曹旗马中国
Owner DALIAN UNIV OF TECH
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