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Fiber grating intelligent plate made of fiber reinforced polymer in pulling extrusion and continuous forming mode and manufacturing method thereof

A fiber grating and fiber-reinforced technology, which is applied in building maintenance, building components, construction, etc., can solve the problem of not being able to sense surface strain with a single smart rib, and achieve easy popularization and application, good mechanical performance, and good corrosion resistance and anti-fatigue effect

Inactive Publication Date: 2014-03-12
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the currently published patents, a fiber grating fiber-reinforced composite smart rib containing a fiber grating sensor is disclosed. The smart rib can only sense linear strain, and cannot sense surface strain through a single smart rib.

Method used

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  • Fiber grating intelligent plate made of fiber reinforced polymer in pulling extrusion and continuous forming mode and manufacturing method thereof
  • Fiber grating intelligent plate made of fiber reinforced polymer in pulling extrusion and continuous forming mode and manufacturing method thereof
  • Fiber grating intelligent plate made of fiber reinforced polymer in pulling extrusion and continuous forming mode and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: A fiber grating fiber-reinforced composite pultrusion continuous molding smart board, such as Figure 9 As shown, it includes a board main body 1 composed of fiber raw yarn and matrix resin. The board main body is filled with a sensing fiber 2 containing a fiber grating sensor 21 and a transmission fiber 22 along the fiber direction. The number of fibers is m, m=3; n fiber grating sensors are arranged on the single sensing fiber, n=3, that is, the fiber grating sensors are grating sensor strings welded with a certain length interval. The distance d1 between two adjacent sensing fibers in the vertical fiber direction and the distance d2 between two adjacent fiber grating sensors along the fiber direction on a single sensing fiber are the same. A section of transmission fiber for connecting the compensation fiber grating is led out from the end of the plate main body. The smart board is made by continuous pultrusion molding process, and the fiber volume con...

Embodiment 2

[0062] Embodiment 2: A fiber grating fiber reinforced composite material pultrusion continuous molding smart board, such as Figure 10 As shown, it includes a board main body 1 composed of fiber raw yarn and matrix resin. The board main body is filled with a sensing fiber 2 containing a fiber grating sensor 21 and a transmission fiber 22 along the fiber direction. The number is m, m=3; n fiber grating sensors are arranged on the single sensing fiber, n=2 or 3. The distance d1 of two adjacent sensing fibers in the vertical fiber direction is the same, and the distance d2 of two adjacent fiber grating sensors along the fiber direction on a single sensing fiber is different. A section of transmission fiber for connecting the compensation fiber grating is led out from the end of the plate main body. The smart board is made by continuous pultrusion molding process, and the fiber volume content of the smart board is not less than 60%.

Embodiment 3

[0063] Embodiment 3: A fiber grating fiber reinforced composite material pultrusion continuous molding smart board, such as Figure 11 As shown, it includes a board main body 1 composed of fiber raw yarn and matrix resin. The board main body is filled with a sensing fiber 2 containing a fiber grating sensor 21 and a transmission fiber 22 along the fiber direction. The number is m, m=3; n fiber grating sensors are arranged on the single sensing fiber, n=2 or 3. The distance d1 between two adjacent sensing fibers in the vertical fiber direction and the distance d2 between two adjacent fiber grating sensors along the fiber direction on a single sensing fiber are different. A section of transmission fiber for connecting the compensation fiber grating is led out from the end of the plate main body. The smart board is made by continuous pultrusion molding process, and the fiber volume content of the smart board is not less than 60%.

[0064] The fiber raw yarn described in embodim...

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Abstract

The invention relates to a fiber grating intelligent plate made of fiber reinforced polymer in a pulling extrusion and continuous forming mode and a manufacturing method thereof. The intelligent plate has civil engineering structural stress and self-monitoring double functions. The intelligent plate comprises a plate body composed of fiber grey yarns and matrix resin, wherein the plate body is filled with sensor fibers containing fiber grating sensors and transmission fibers in the fiber direction, the number of the sensor fibers is m, m is an integer larger than or equal to one, each sensor fiber is provided with n fiber grating sensors, and n is an integer larger than or equal to one. The intelligent plate is manufactured in a pulling extrusion and continuous forming process, the fiber volume content of the intelligent plate is no less than 60%, and the intelligent plate facilitates accurate control of tension control stress of fiber plates, compensation of lost prestress and real-time monitoring of reinforced structures when the fiber plates, especially prestress fiber plates are used for reinforcing and repairing concrete structures and steel structures.

Description

technical field [0001] The invention relates to an intelligent civil engineering material for stress and monitoring of civil engineering structures and a preparation method thereof, in particular to a fiber grating fiber reinforced composite material pultrusion with dual functions of stress and self-monitoring for civil engineering structures Continuous molding smart board and preparation method thereof. Background technique [0002] Fiber Reinforced Polymer (FRP) is composed of high-performance fibers and matrices such as carbon fiber (Carbon Fiber), glass fiber (Glass Fiber) and aramid fiber (Aramid Fiber), mainly resin (Polymer) system. A high-performance composite material made in a certain proportion and in accordance with a certain processing technology. Because of its excellent corrosion resistance, fatigue resistance, high specific strength, and convenient construction, it is widely used in the field of civil engineering. Its strengthening and repairing of concrete...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04C2/52B29C70/52
Inventor 廖羚邓朗妮张鹏陈华邓宇康侃
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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