CN110737056A - Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof and implementation method - Google Patents
Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof and implementation method Download PDFInfo
- Publication number
- CN110737056A CN110737056A CN201910857525.XA CN201910857525A CN110737056A CN 110737056 A CN110737056 A CN 110737056A CN 201910857525 A CN201910857525 A CN 201910857525A CN 110737056 A CN110737056 A CN 110737056A
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- Prior art keywords
- optical fiber
- leading
- intelligent rib
- sleeve
- protection
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- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 109
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000003466 welding Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 15
- 239000000945 filler Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 40
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 2
- 238000007526 fusion splicing Methods 0.000 claims 1
- 230000004927 fusion Effects 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 description 18
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to composite material intelligent rib leading-out optical fibers and a protection structure of a fusion joint part thereof, which comprises a protection sleeve arranged at the front end of an intelligent rib, wherein the optical fibers exposed out of an intelligent rib body extend forwards into the protection sleeve, the leading-out optical fibers are arranged in a loose sleeve, the front end of the leading-out optical fibers is fused with a end of an optical fiber jumper, the fusion joint part is provided with a protection sleeve for protecting the fusion joint part, the other end of the optical fiber jumper is connected with an optical fiber connector, the optical fiber connector is exposed forwards out of the protection sleeve, and the protection sleeve is internally filled with filler for fixedly connecting the leading-out optical fibers and the optical fiber jumper in the protection sleeve.
Description
Technical Field
The invention belongs to the technical field of safety monitoring and structural materials, and particularly relates to fiber composite material intelligent rib leading-out optical fibers, a protection structure of a welding part of the optical fibers and an implementation method of the protection structure.
Background
The carbon fiber composite material rib material has excellent performances of light weight, high strength, corrosion resistance, fatigue resistance, good damping performance and the like, replaces the traditional steel wire as a guy cable component in a bridge cable, and has become development directions for improving the span and the durability of the bridge.
Compared with the traditional monitoring method, the optical fiber sensor (such as quasi-distributed fiber bragg grating, distributed Brillouin and Raman) has the unique advantages of small sensing element size, high precision, electromagnetic interference resistance, good durability, absolute measurement, convenience in realizing distributed and real-time online test, capability of integrating sensing and data transmission in bodies and the like, and becomes the most ideal safety monitoring sensing element for a great engineering structure.
At present, in the process of preparing a fiber composite rib, an optical fiber sensor is embedded in the middle of the rib along the axial direction to prepare the composite intelligent rib, so that the characteristic that the optical fiber sensor is fragile in texture and difficult to arrange is overcome, and the composite intelligent rib is well applied to many projects.
Disclosure of Invention
The invention aims to provide a composite material intelligent rib leading-out optical fiber and a protection structure of a welding part thereof and an implementation method thereof, wherein the welding part is particularly the welding part of the leading-out optical fiber and an optical fiber jumper wire, the technology can effectively protect the leading-out optical fiber and the welding part thereof, the service life of the intelligent rib serving as a long-term monitoring component is prolonged, and the intelligent rib can be applied to projects such as bridge guys, suspenders and prestressed ribs in .
The invention solves the problems by adopting the technical scheme that composite material intelligent bar leading-out optical fibers and a protection structure of a fusion joint part thereof comprise a protection sleeve arranged at the front end of an intelligent bar, the optical fibers exposed out of an intelligent bar body extend forwards into the protection sleeve, the leading-out optical fibers are arranged in a loose sleeve, the front end of the leading-out optical fibers is fused with the end of an optical fiber jumper wire, the fusion joint part is provided with a protection sleeve for protecting the fusion joint part, the other end of the optical fiber jumper wire is connected with an optical fiber connector, the optical fiber connector is exposed forwards out of the protection sleeve, and the protection sleeve is internally filled with filler for fixedly connecting the leading-out optical fibers and the optical fiber.
The protective sleeve is used for protecting the welding part, and the protective sleeve is used for performing filler consolidation protection on the leading-out optical fiber, the welding part of the leading-out optical fiber and the optical fiber patch cord and most of the optical fiber patch cords, so that the leading-out optical fiber and the welding part of the optical fiber patch cords are thoroughly isolated from the external environment to form sealing protection.
The method for realizing the protection structure of the leading-out optical fiber and the welding part thereof comprises the following steps
1) Leading out sections of optical fibers in the intelligent rib from the intelligent rib body as leading-out optical fibers;
2) taking a protective sleeve, and sleeving the protective sleeve at the front end of the intelligent rib;
3) taking an optical fiber jumper wire of which the end is connected with an optical fiber connector, welding the front end of the led-out optical fiber with the other end of the optical fiber jumper wire, sleeving a heat-shrinkable tube on the led-out optical fiber before welding, and moving the heat-shrinkable tube to a welding part to form protection after welding;
4) leading out the optical fiber, the welding part of the optical fiber and the optical fiber jumper wire and part of the optical fiber jumper wire into a protective sleeve, wherein the optical fiber joint is exposed out of the protective sleeve;
5) the protection sleeve and the front end of the intelligent rib are internally and externally consolidated, then the filler is poured into the protection sleeve from the front end, and the lead-out optical fiber, the optical fiber welding part and the optical fiber jumper are consolidated in the protection sleeve;
6) the front end of the protective sleeve is blocked, and only the optical fiber connector is exposed.
Compared with the prior art, the invention has the advantages that:
1) the sleeve, the filler and the like used by the protection structure are all common materials and are convenient to obtain.
2) The implementation method of the protection structure is simple in process and convenient and fast to operate;
3) the protection structure can effectively protect the optical fiber in the composite material intelligent rib and the welding part of the optical fiber and the optical fiber jumper wire, and improve the service life of the intelligent rib as a long-term monitoring part;
4) the protection structure is simple, and the process problems of the composite material intelligent rib applied to the manufacturing process of bridge inhaul cables, suspenders, prestressed ribs and the like are reduced to the greatest extent.
Drawings
Fig. 1 shows the protection structure of the kinds of fiber composite material intelligent rib leading-out optical fiber and the welding part thereof.
Wherein:
the optical fiber composite material comprises 1-fiber composite material intelligent ribs, 2-optical fibers, 3-optical gratings, 4-loose tube sleeves, 5-optical fiber jumpers, 6-optical fiber connectors, 7-heat-shrinkable tubes, 8-stainless steel protective sleeves and 9-epoxy resin fillers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely embodiments of the present invention, rather than all embodiments.
Examples
The fiber composite material intelligent rib in the embodiment has the diameter of 7.5mm, and the fiber composite material intelligent rib is led out of the optical fiber and the protection structure of the welding part is implemented according to the following steps:
1) leading out the optical fiber sleeved with the loose tube sleeve 4 in the composite material intelligent rib 1 to the length of sections;
2) selecting a stainless steel protective sleeve with the inner diameter of 8mm, the unilateral wall thickness of 0.5mm and the outer diameter of 9mm, wherein the inner diameter of the protective sleeve 8 is slightly larger than the outer diameter of the composite material intelligent bar 1 and smaller than the maximum outer diameter of the optical fiber connector 6, so that the protective sleeve 8 is sleeved on the composite material intelligent bar firstly;
3) the optical fiber jumper 5 with the optical fiber joint 6 at the end is welded with the led-out optical fiber of the composite material intelligent rib 1, a heat-shrinkable tube is sleeved on the led-out optical fiber before welding, and the heat-shrinkable tube 7 is used for primarily protecting the welding part in the welding process;
4) the stainless steel protective sleeve 8 on the composite material intelligent bar is moved out, the rear end of the stainless steel protective sleeve is still sleeved outside the front end of the intelligent bar, the leading-out optical fibers, the fusion welding part and part of the optical fiber jumper 5 of the intelligent bar are ensured to be covered in the protective sleeve 8, and if the length of the protective sleeve 8 is allowed, the protective sleeve 8 can be covered to the end part of the jumper joint;
5) coating epoxy resin cured at normal temperature on the contact surface in the composite material intelligent rib and the stainless steel protective sleeve, so that the protective sleeve 8 is fixedly connected on the composite material intelligent rib to prevent the composite material intelligent rib from falling off;
6) filling epoxy resin filler 9 cured at normal temperature into the opening part of the other end of the stainless steel protective sleeve 8, so that the intelligent rib leads out optical fibers, the optical fiber welding part and the optical fiber jumper are fixedly connected inside the protective sleeve, and devices in the protective sleeve and the protective sleeve form a whole;
7) and sealing and protecting the opening part of the end part of the protective sleeve by using the sealant.
Fiber composite intelligence muscle is drawn forth optic fibre and protection architecture at splice position thereof, including setting up protective case 8 and the front end implantation protective case 8 of intelligent muscle 1 at 1 front end of intelligent muscle and fixed, expose and stretch into forward in the optic fibre outside the intelligent muscle body in protective case 8, draw forth optic fibre and arrange in loose tube sleeve 4, the front end of drawing forth optic fibre and the end butt fusion of optic fibre wire jumper 5, the splice sets up the protective sheath 7 of protection splice position, optic fibre jumper 5's end connection fiber splice 6 in addition, and fiber splice 6 exposes in protective case 8 forward, be full of in protective case 8 and pack 9 and be used for drawing forth optic fibre and optic fibre jumper 5 concreties in protective case 8.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
- The protection structure for the leading-out optical fiber and the fusion-spliced part of the leading-out optical fiber of the composite material intelligent rib is characterized by comprising a protection sleeve (8) arranged at the front end of the intelligent rib (1), the optical fiber exposed out of an intelligent rib body extends forwards into the protection sleeve (8), the leading-out optical fiber is arranged in a loose tube sleeve (4), the front end of the leading-out optical fiber is in fusion splicing with the end of an optical fiber jumper (5), a protection sleeve (7) for protecting the fusion-spliced part is arranged at the fusion-spliced part, the other end of the optical fiber jumper (5) is connected with an optical fiber connector (6), the optical fiber connector (6) is exposed forwards in the protection sleeve (8), and the protection sleeve (8) is fully filled with filler (9) for fixedly connecting the leading-out optical fiber and the optical fiber jumper (5) in.
- 2. The intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 1, characterized in that: the front end of the intelligent bar (1) is implanted into the protective sleeve (8) and fixed.
- 3. The intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 1, characterized in that: the optical fiber connector (6) is clamped at the front end of the protective sleeve (8).
- 4. The intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 1, characterized in that: the intelligent rib is a composite material intelligent rib.
- 5. The method for realizing the protection structure of the composite material intelligent rib outgoing optical fiber and the welding part thereof according to the claim 1, 2, 3 or 4 is characterized in that: comprises the following steps1) Leading out sections of optical fibers in the intelligent rib from the intelligent rib body as leading-out optical fibers;2) taking a protective sleeve, and sleeving the protective sleeve at the front end of the intelligent rib;3) taking an optical fiber jumper wire of which the end is connected with an optical fiber connector, welding the front end of the led-out optical fiber with the other end of the optical fiber jumper wire, sleeving a heat-shrinkable tube on the led-out optical fiber as a protective sleeve before welding, and moving the heat-shrinkable tube to a welding part to form protection after welding;4) leading out the optical fiber, the welding part of the optical fiber and the optical fiber jumper wire and part of the optical fiber jumper wire into a protective sleeve, wherein the optical fiber joint is exposed out of the protective sleeve;5) the protection sleeve is fixedly connected with the front end of the intelligent rib, then the filler is poured into the protection sleeve from the front end, and the lead-out optical fiber, the optical fiber welding part and the optical fiber jumper are fixedly connected in the protection sleeve;6) the front end of the protective sleeve is blocked, and only the optical fiber connector is exposed.
- 6. The method for realizing the composite material intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 5 is characterized in that: the filler in the step (5) is epoxy resin.
- 7. The method for realizing the composite material intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 5 is characterized in that: and (6) adopting a sealant to seal the front end of the protective sleeve.
- 8. The method for realizing the composite material intelligent rib leading-out optical fiber and the protection structure of the welding part thereof according to claim 5 is characterized in that: and (5) adopting epoxy resin to fixedly bond the protective sleeve at the front end of the intelligent rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857525.XA CN110737056A (en) | 2019-09-09 | 2019-09-09 | Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857525.XA CN110737056A (en) | 2019-09-09 | 2019-09-09 | Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110737056A true CN110737056A (en) | 2020-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857525.XA Pending CN110737056A (en) | 2019-09-09 | 2019-09-09 | Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof and implementation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110737056A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051164Y (en) * | 2006-12-29 | 2008-04-23 | 柳州欧维姆机械股份有限公司 | Enhanced compound intelligent bar for optical fiber grating fiber |
| CN101435779A (en) * | 2008-12-12 | 2009-05-20 | 哈尔滨工业大学 | Intelligent steel strand based on optical fiber Brillouin sensing and preparation and full dimension monitoring method thereof |
| CN101930101A (en) * | 2009-06-25 | 2010-12-29 | 上海启鹏化工有限公司 | System and method for preparing optical fiber Bragg grating smart bar |
| CN102109643A (en) * | 2011-02-18 | 2011-06-29 | 深圳市特发信息光网科技股份有限公司 | Optical fiber quick coupling and splicing method thereof |
| US20110243185A1 (en) * | 2009-09-30 | 2011-10-06 | Fasten Group Company, Ltd. | Bridge Intelligent Cable System with Built-In Fiber Grating Sensor |
| CN103345019A (en) * | 2010-07-08 | 2013-10-09 | 朴撰卨 | Optical fiber connector and optical fiber assembly method |
| CN205317992U (en) * | 2015-12-31 | 2016-06-15 | 广东思柏科技有限公司 | Optical cable fusion connects protection subassembly |
| CN106121134A (en) * | 2016-08-29 | 2016-11-16 | 智性纤维复合加固南通有限公司 | A kind of optical fiber built-in FRP muscle leading-out wire protective structure and preparation method thereof |
| CN106526750A (en) * | 2015-09-11 | 2017-03-22 | Ⅱ-Ⅵ有限公司 | Micro splice protector |
| CN208688695U (en) * | 2018-09-28 | 2019-04-02 | 哈尔滨工业大学 | Bridge capacity rapid evaluation and health monitoring fibre optical sensor welding protective device |
| CN210982826U (en) * | 2019-09-09 | 2020-07-10 | 法尔胜泓昇集团有限公司 | Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof |
-
2019
- 2019-09-09 CN CN201910857525.XA patent/CN110737056A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051164Y (en) * | 2006-12-29 | 2008-04-23 | 柳州欧维姆机械股份有限公司 | Enhanced compound intelligent bar for optical fiber grating fiber |
| CN101435779A (en) * | 2008-12-12 | 2009-05-20 | 哈尔滨工业大学 | Intelligent steel strand based on optical fiber Brillouin sensing and preparation and full dimension monitoring method thereof |
| CN101930101A (en) * | 2009-06-25 | 2010-12-29 | 上海启鹏化工有限公司 | System and method for preparing optical fiber Bragg grating smart bar |
| US20110243185A1 (en) * | 2009-09-30 | 2011-10-06 | Fasten Group Company, Ltd. | Bridge Intelligent Cable System with Built-In Fiber Grating Sensor |
| CN103345019A (en) * | 2010-07-08 | 2013-10-09 | 朴撰卨 | Optical fiber connector and optical fiber assembly method |
| CN102109643A (en) * | 2011-02-18 | 2011-06-29 | 深圳市特发信息光网科技股份有限公司 | Optical fiber quick coupling and splicing method thereof |
| CN106526750A (en) * | 2015-09-11 | 2017-03-22 | Ⅱ-Ⅵ有限公司 | Micro splice protector |
| CN205317992U (en) * | 2015-12-31 | 2016-06-15 | 广东思柏科技有限公司 | Optical cable fusion connects protection subassembly |
| CN106121134A (en) * | 2016-08-29 | 2016-11-16 | 智性纤维复合加固南通有限公司 | A kind of optical fiber built-in FRP muscle leading-out wire protective structure and preparation method thereof |
| CN208688695U (en) * | 2018-09-28 | 2019-04-02 | 哈尔滨工业大学 | Bridge capacity rapid evaluation and health monitoring fibre optical sensor welding protective device |
| CN210982826U (en) * | 2019-09-09 | 2020-07-10 | 法尔胜泓昇集团有限公司 | Composite material intelligent rib leading-out optical fiber and protection structure of welding part thereof |
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| PB01 | Publication | ||
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Application publication date: 20200131 |