Displacement self-restraint type prestressed FRP sheet tensioning device and implementation method thereof

A technology of FRP sheets and tensioning devices, which is applied in the processing of building materials, construction, building construction, etc., can solve the problems of large operating space, cumbersome operation, and high material consumption, and achieve convenient manual operation, simple operation, and high construction efficiency. low cost effect

Active Publication Date: 2019-02-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention has a large operating space, consumes a lot of materials, and is cumbersome to operate

Method used

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  • Displacement self-restraint type prestressed FRP sheet tensioning device and implementation method thereof
  • Displacement self-restraint type prestressed FRP sheet tensioning device and implementation method thereof
  • Displacement self-restraint type prestressed FRP sheet tensioning device and implementation method thereof

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Embodiment 1

[0039] A displacement self-constrained prestressed FRP sheet tensioning device, the tensioning device includes a steering part 2, a fixed part 3, a tensioning part 5 and a tensioning support part 6; wherein the steering part 2, the fixing part 3 and the tensioning part The support parts 6 are all fixed on the lower surface of the reinforced beam 1, the tension support part 6 is centered and fixed, and the number of the steering parts 2 is 2, which are respectively located on the left and right sides of the tension support part 6. Fixing parts 3 are arranged between the left and right sides of the left and right sides and the steering part 2, the tensioning part 5 is fixedly connected to the tensioning support part 6, one end of the FRP sheet 4 is fixed on one end of the tensioning part 5, and the FRP sheet The other end of 4 passes through the steering part 2 and the fixed part 3 on one side of the tension support part 6, then passes through the tension support part 6, and then...

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Abstract

The invention discloses a displacement self-restraint type prestressed FRP sheet tensioning device and an implementation method thereof. The tensioning device comprises a steering part (2), a fixed part (3), a tensioning part (5) and a tensioning and supporting part (6); and one end of an FRP sheet (4) is fixed to one end of the tensioning part (5), and the other end of the FRP sheet (4) is fixedto the other end of the tensioning part (5) through the steering part (2), the fixed part (3), the tensioning and supporting part (6), the fixed part (3) and the steering part (2). The implementationmethod comprises the steps that the position and length of the FRP sheet (4) are determined according to actual demand, then the steering part (2), the fixed part (3), the tensioning and supporting part (6) and the tensioning part (5) are fixed, and finally, the FRP sheet (4) is tensioned through the tensioning part (5). The implementation method has simple operation and low construction cost, efficiently uses the FRP material performance, and improves the performance of a reinforced object.

Description

technical field [0001] The invention relates to a displacement self-constrained prestressed FRP sheet tensioning device and an implementation method thereof, which belong to the fields of civil engineering, construction engineering, highway engineering and municipal engineering. Background technique [0002] In actual engineering, because fiber reinforced polymer (FRP) has the advantages of high tensile strength, good durability, light weight, excellent elastic properties, and convenient construction, the beam body is often reinforced by pasting FRP sheets. . In practice, it is found that the effect of FRP sheet is not obvious at the initial stage of beam stress. Only when the crack reaches a certain width, FRP sheet can play a role and bear the load, and the reinforcement effect is passive. In view of this, with the help of prestress theory and related practice, a method is sought to make the FRP sheet produce a certain pretension in the early stage, so that it can produce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12
CPCE04G21/12
Inventor 王文炜张亚飞王放周畅郑宇宙田俊谈笑刘欣楠
Owner SOUTHEAST UNIV
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