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Packaging component of self-sensing reinforcing steel bar

A self-sensing, steel bar technology, applied in measuring devices, measuring force by measuring the change of optical properties of materials under stress, instruments, etc., can solve problems such as easy breakage and low shear resistance, and achieve low energy loss. , It is not easy to break, and the effect of improving the survival rate

Inactive Publication Date: 2020-08-04
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention proposes a packaging component with embedded fiber grating and self-sensing steel bars. Low shear capacity, easy to break and other shortcomings, effectively protect the optical fiber lead-out line, and effectively improve the survival rate of the grating optical fiber

Method used

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  • Packaging component of self-sensing reinforcing steel bar
  • Packaging component of self-sensing reinforcing steel bar
  • Packaging component of self-sensing reinforcing steel bar

Examples

Experimental program
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specific Embodiment 1

[0016] Such as figure 1 , 2 As shown in , 3, a packaging component of a self-sensing steel bar embedded with a fiber grating is used to protect the lead-out line of the self-sensing steel bar embedded with a fiber grating, including a self-sensing steel bar 1, an optical fiber lead-out line 2, and a packaging component 3 And the protective tube 6. The encapsulation component 3 covers the lead-out position of the embedded fiber grating self-sensing steel bar in its own internal space, protecting it from impact and resulting in brittle fracture. The protection tube 6 is closely connected with the packaging component 3, and the protection tube wraps the pigtail of the lead-out line outside the internal lead-out engineering component.

[0017] The packaging component 3 includes: an extraction hole 4 , a tightening screw 5 and a cutout 8 . Screw holes are provided on both sides of the package member 3, and the screw 5 is tightened to fix the package member 3 on the self-sensing ...

specific Embodiment 2

[0021] Such as Figure 4 , 5 , shown in 6, a packaging component of a carbon plate embedded with a fiber grating, used to protect the lead-out line of the carbon plate embedded with a fiber grating, including a carbon plate 1, an optical fiber lead-out line 2, a package component 3 and a protection tube 6. The packaging component 3 covers the lead-out wires embedded in the fiber grating carbon plate in its own internal space, protecting it from shocks and brittle fractures. The protection tube 6 is tightly connected with the packaging component 3, and the protection tube wraps the pigtail of the lead-out line outside the internal lead-out engineering component.

[0022] The packaging component 3 includes: an extraction hole 4 , a tightening screw 5 and a cutout 8 . Holes are provided on both sides of the packaging component 3, and the screw 5 is tightened to fix the packaging component 3 on the engineering component and ensure that the cutout 8 and the lead-out hole 4 are l...

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Abstract

The invention discloses a protection device of a self-sensing reinforcing steel bar outgoing line. The protection device comprises a tension reinforcing steel bar, an outgoing line, a packaging component and a fiber grating outgoing line protection tube, wherein the packaging component is fixed on the self-sensing reinforcing steel bar through a tightening screw, a notch in the same direction as afiber bragg grating embedding groove is reserved in the packaging component, a fiber bragg grating outgoing line is bent through the notch, enters a leading-out hole in the packaging component and isled out at any angle, a groove is formed in the leading-out hole, and the optical fiber protection tube is clamped into the groove. According to the packaging component of the self-sensing reinforcing steel bar with the embedded fiber bragg grating, the mounting position can be determined according to actual engineering requirements, the requirement for accurate clamping is met, the defects thata light material is high in brittleness, low in shear capacity, prone to breakage and the like are effectively overcome, an optical fiber outgoing line is effectively protected, and the survival rateof grating optical fibers is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of safety monitoring and structural materials, and in particular relates to a packaging component of self-sensing steel bars embedded with optical fiber gratings. Background technique [0002] Once the reinforced concrete structure fails in service, it will lead to catastrophic consequences such as the collapse of the entire structure, causing huge losses to people's lives and property. Therefore, it is very important to carry out long-term real-time monitoring of the stress state of reinforced concrete structures and to protect the detection devices. [0003] In order to predict and prevent accidents, scientists and technicians have been working hard to study intelligent structures, and sensing technology is one of the key technologies of intelligent structures. Fiber Bragg grating has the advantages of small size, light weight, good wavelength selectivity, not affected by nonlinear effects, insensitive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/24
CPCG01L1/246
Inventor 徐荣铭朱万旭苏泳旗
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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