CN206876315U - Bridge structure intelligence reinforcement assembly - Google Patents
Bridge structure intelligence reinforcement assembly Download PDFInfo
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- CN206876315U CN206876315U CN201720426804.7U CN201720426804U CN206876315U CN 206876315 U CN206876315 U CN 206876315U CN 201720426804 U CN201720426804 U CN 201720426804U CN 206876315 U CN206876315 U CN 206876315U
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Abstract
The utility model discloses a kind of bridge structure intelligence reinforcement assembly, including：Carbon fibre bar material, fiber-optic grating sensor and the covering portion bonded with the carbon fibre bar material surface are coated with, the anchor structure that the both ends of carbon fibre bar material and beam body are fixed, the fiber grating being connected with the fiber-optic grating sensor reconciles instrument；The fiber-optic grating sensor is the more multimode fibres or single-mode fiber for being written with one or more fiber gratings of parallel laying.The utility model can improve fiber-optic grating sensor and the survival rate after carbon fibre bar material compoiste adhering, reduce the production cost of intelligent carbon fibre bar material, Study On Intelligent Monitoring Techniques are used for the supervision of pre-stressed carbon fiber reinforcement bridge structure construction quality, and realize that bridge structure reinforces efficiency and health and safety long term monitoring.
Description
Technical field
The technology that building monitors with bridge structure intelligence reinforcing engineering and structure intelligent health and safety is the utility model is related to,
More particularly to carbon fibre bar material.
Background technology
The technology reinforced using intelligent prestress carbon fiber board muscle to bridge structure, be by the use of carbon fiber board muscle as
Presstressed reinforcing steel material, by special tensioning, anchor, prestressing force is applied to carbon fiber board muscle and is anchored in reinforcement bridge top
On structural elements, consolidated with bridge by curved tensional element by epoxy construction gluing knot or concrete to carry tension, it can
So that the advantages of active reinforcement technique of external prestressing, to be combined together with carbon fibre composite high-intensity performance.
At present, there is Switzerland's west card in the external enterprise for applying to concrete structure pre-stressed carbon fiber reinforcement technique that possesses
（Sika）Group and U.S. Simpson (Simpson Strong-Tie Asia Ltd), its major product is 100mm or 50mm
Width, carbon fiber rectangular thin plate thick 1~3mm, apply to the reinforcing of Short/Medium Span Bridge reinforced concrete structure, but foreign countries in advance should
Power CFRP strengthening techniques are intelligent, do not inquire related small bridge structural strengthening also temporarily and implement to report with case.
And the domestic research and development of using undergone nearly ten years, some bridge strengthenings construction field experience is also achieved, although city
Pre-stressed carbon fiber anchorage and tensioning equipment manufacturer are more on field, because of the codes and standards imperfection of correlation, particularly intelligence
Monitoring technology has much room for improvement or solved, and it is in very different phenomenon to be driven its quality by illegal profit.
Patent（CN 1057 16758 A）" a kind of fibre reinforced plastics intelligence carbon plate and preparation method thereof " is disclosed, is carried
Go out fiber-optic grating sensor and the method for carbon fiber composite molding in carbon plate pultrusion production.The patent uses single-mode fiber
Grating sensor is implanted into compound tense, same with carbon fiber because fiber-optic grating sensor is relatively large in diameter and wire rod tensile-sbear strength is relatively low
Step pultrusion is when entering mould, because the straight irregular arrangement of carbon fiber easily cause optical patchcord drawing break it is bad, so easily going out existing
The phenomenon that motility rate is relatively low or fiber-optic grating sensor accuracy declines.Simultaneously as fiber-optic grating sensor cross-sectional area is larger,
Be implanted into it is compound after reduce the volume content of carbon fiber, cause muscle material specific strength significantly to decline.Secondly, fiber-optic grating sensor
Gauge or diameter of wire is smaller, also for using when carbon plate cutting after fused fiber splice bring bigger difficulty.
Utility model content
The utility model is in order to solve the above-mentioned problems in the prior art, it is proposed that a kind of bridge structure is intelligently reinforced
Component, including：Carbon fibre bar material, fiber-optic grating sensor and the covering portion bonded with the carbon fibre bar material surface are coated with,
The anchor structure that the both ends of carbon fibre bar material and beam body are fixed, the fiber grating being connected with the fiber-optic grating sensor are reconciled
Instrument, the memory that simultaneously storing fiber optic grating reconciles the use state data for the carbon fibre bar material that instrument collects is received, passes through Internet of Things
Net obtains the use state data and carries out the data analysis center of structural health safety analysis.
The fiber-optic grating sensor be parallel to carbon fiber Impact direction lay one or more be written with one or
The multimode fibre or single-mode fiber of multiple fiber gratings.
Preferably, the fiber-optic grating sensor is between two anchor structures.
In the first embodiment, the covering portion is to be wrapped on the outside of the fiber-optic grating sensor and be bonded in carbon fiber
The thermosetting or thermoplastic resin layer on muscle material surface.
In a second embodiment, the cladding position is wrapped on the outside of the fiber-optic grating sensor and is bonded in carbon fiber
The hot melt plastic glue-line on muscle material surface, the hot melt plastic glue-line outer wrapping the thermal contraction casing tube mutually cohesive with it.
The carbon fibre bar material can be lamellar, and its width is 10~100mm, and thickness is 1~10mm, width and thickness
It is ＞ 10 to spend ratio.In a preferred scheme, carbon fibre bar material width is 30~20mm, and thickness is 2~4mm, width and thickness ratio
For ＜ 10.The carbon fibre bar material can also be cylindrical bar, a diameter of 3~50mm.
Preferably, fiber content >=65% of the carbon fibre bar material, meets national standard《GB50728》It is required that.
The utility model compared with prior art, possesses following advantage：
1st, the utility model uses the wide 10~100mm of muscle material, and preferably 30~20 ㎜, thickness is 1~10mm, preferably 2~4mm
Carbon fibre bar（Plate）Or a diameter of 3~50mm circles muscle, fiber stress concentration degree is good, control stress for prestressing is big, stock utilization
It is high；
2nd, single mode or multi-mode optica lfiber grating sensor and matching demodulation instrument strong applicability, there is preferable cost performance；
3rd, carbon fibre bar material is bonded using secondary resin compoiste adhering or thermoplastic cement fusion, single mode or multi-mode optica lfiber grating
Sensor reliability is good, survival rate is high；
4th, can realize strengthening construction quality data quantization supervision, and can realize Design of Reinforcement data quantization assess and
Loss of prestress monitors, and what is more important, which is based on technology of Internet of things, can realize bridge structure Long Period Health Monitoring.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model first embodiment；
Fig. 2 is the structural representation of first embodiment one of the utility model carbon fibre bar material；
Fig. 3 is another structural representation of first embodiment of the utility model carbon fibre bar material；
Fig. 4 is the structural representation of second embodiment one of the utility model carbon fibre bar material；
Fig. 5 is another structural representation of second embodiment of the utility model carbon fibre bar material；
Fig. 6 is the structural representation of the utility model anchor structure；
Fig. 7 is application structure schematic diagram of the present utility model.
Embodiment
As shown in figure 1, the utility model proposes the principal rod material of bridge intelligence structure reinforcement assembly use carbon fibre bar
Material 1, axial direction of the fiber-optic grating sensor 2 along carbon fibre bar material 1（Fibre length direction, is also Impact direction）It is laid on
The surface of carbon fibre bar material 1, it is bonded together by covering portion and carbon fibre bar material 1.Anchor structure 3 can be by carbon fibre bar material 1
Both ends fixed with beam body, fiber grating is reconciled instrument 4 and is connected with fiber-optic grating sensor 2, the storage with superelevation amount of storage
Device 5（Also it is big data memory）It will receive and store the stress for the carbon fibre bar material 1 that each fiber grating conciliation instrument collects
Use state data, then data analysis center 6 obtained by Internet of Things 7 from memory carbon fibre bar material 1 stress use
Status data is simultaneously analyzed, and has so both realized the data quantization supervision of the strengthening construction quality of erecting bed, and and can, which is realized, to be added
The data quantization of fixed meter is assessed and loss of prestress monitoring, and what is more important, which is based on technology of Internet of things, can realize bridge structure
The long-range or networking monitoring of long-term health.
In the utility model, fiber-optic grating sensor 2 can be parallel to carbon fiber Impact direction laying one or
The fiber grating of the more single-mode fibers or multimode fibre for being written with one or more fiber gratings, covering portion and its inside passes
Sensor is arranged between anchor structure 3, can so avoid clad when being fixed by anchor structure and beam body, it is possible to go out
Existing anchoring clamping compression shear is damaged, and so as to influence the situation of the collection of data, and covering portion is to fiber-optic grating sensor and company
Wiring material realizes compoiste adhering simultaneously, avoids conventional outer sensor anchoring bond peeling, and therefore, fiber grating reconciles instrument
4 ends that can be connected to fiber-optic grating sensor can also be connected to middle part.Certainly it is coated with the bag of fiber-optic grating sensor
The portion of covering can also be isometric with carbon fibre bar material stress section, and now, fiber grating reconciles instrument and between two anchor structures 3
Fiber-optic grating sensor is connected by wire jumper.
Fig. 2, Fig. 3 show the fixation of carbon fibre bar material 1 and fiber-optic grating sensor 2 in the utility model first embodiment
Structure, in this embodiment, 2 fiber-optic grating sensors 2 are shown in the figure.By secondary formed by extrusion and tension composite algorithm, make heat
Solidity or thermoplastic resin layer 8 are wrapped in fiber-optic grating sensor 2, and thermosetting or thermoplastic resin layer 8 and carbon fibre bar material 1
Bond.When it is in flat bar that carbon fibre bar material 1 is overall, the length direction and carbon of multimode fibre or single-mode fiber grating sensor are fine
The length direction of dimension muscle material 1 is consistent, and multifiber grating sensor is arranged evenly and at intervals along the direction vertically with length direction
Upper surface is shown in the figure on the surface of carbon fibre bar material 1 in cloth.When it is in round bar shape that carbon fibre bar material 1 is overall, multimode or list
The length direction of mode fiber grating sensor is consistent with the length direction of carbon fibre bar material 1, and multifiber grating sensor is in circle
Arranged evenly and at intervals in circumferential direction, thermosetting or thermoplastic resin layer are covered on the outer circumference surface of carbon fibre bar material 1.
In the structure shown here, by the method for carbon fibre bar material and fiber-optic grating sensor compoiste adhering, comprise the following steps：
1) first fiber and reinforced resin are put into mould, carbon fibre bar is formed by first time pultrusion composite molding method
Material；
2) carbon fibre bar material is cut out to needing length according to requirement of engineering；
3) fiber-optic grating sensor is laid on carbon fibre bar material surface, scrapes and smear covered composite yarn binding resin；
4) pultrusion mould composite molding is used again, clad is coated on fiber-optic grating sensor outside and and carbon fiber
Muscle material realizes adhesive solidification.
The advantages of the method, is that carbon fibre bar material glues anchoring and do not influence muscle material composite quality and intensity in vitro, can be according to need
To use single mode or multi-mode optica lfiber grating sensor, fiber-optic grating sensor be arranged between both ends anchorage or anchor plate muscle material by
Power section, not only viscous anchoring easily guarantee, tensioning clamping compression shear not damaged, survival rate pinpoint accuracy are good outside fiber-optic grating sensor, and
And implementation is reliable, convenient, cost is controllable, so, the good application easy to spread of comprehensive cost performance.
Further optimal way is in the present embodiment：Carbon fibre bar material surface recombination bonds single mode or multi-mode optica lfiber grating
Sensor, its outward appearance both can be rectangle or width local crowning parallel above and below width after shaping
Square or width is in circular shape.Meanwhile carbon fibre bar material can also upper and lower two surfaces all compoiste adhering single modes or more
Mode fiber grating sensor.
Fig. 4, Fig. 5 show the fixation of carbon fibre bar material 1 and fiber-optic grating sensor 2 in the utility model second embodiment
Structure, in this embodiment, 2 fiber-optic grating sensors 2 are shown in the figure.Wrapped from the inside to the outside on the outer wall of carbon fibre bar material 1
Hot melt plastic glue-line 9 and thermal contraction casing tube 10 are wrapped up in, for hot melt plastic glue-line 9 using the relatively low interior thermal contraction casing tube of fusing point, it is molten
Point be less than outer heat shrink sleeve pipe, and outer heat shrink sleeve pipe for using among PE, EVA, PVC, PET one of or two or more be made
Thermoplastic resin membrane.No matter carbon fibre bar material 1 is flat bar shaped or cylinder, and hot melt plastic glue-line and thermal contraction casing tube are all
Successively on the surrounding outer wall of whole wrap carbon fiber muscle material 1.
In the structure shown here, by the method for carbon fibre bar material and fiber-optic grating sensor bond-anchorage, comprise the following steps：
1) and first fiber and reinforced resin are put into mould, carbon fibre bar material is formed by pultrusion composite molding method；
2) carbon fibre bar material is cut out to needing length according to requirement of engineering；
3) fiber-optic grating sensor is then laid on carbon fibre bar material surface, and is fixed using binding agent local bonding；
4) interior hot melt adhesive layer and outer heat shrink plastic cement bilayer sleeve is arranged outside, melts interior hot melt adhesive layer using external heating method
Realized after melting with carbon fibre bar material bond-anchorage on the outside of fiber-optic grating sensor, rapid desufflation bag after outer heat shrink plastic layer is heated
Cover and overlay, so as to realize external optical fiber grating sensor and carbon fibre bar material bond-anchorage.
The advantages of the method, is that bonding does not influence muscle material composite quality and intensity to carbon fibre bar material in vitro, can be as needed
Using single-mode fiber or multi-mode optica lfiber grating sensor；Because outer layer thermoplastic resin possesses preferable intensity and toughness, not only
There are the defencive functions such as anti-puncture, anti-scratch destruction to carbon fiber, and clamped when both ends anchorage is engaged to the tensioning of carbon fibre bar material
When, also there is preferable anti-puncture defencive function to optical fiber, so, optical fiber both may be disposed at muscle material between both ends anchorage or anchor plate
Stress section, the elongated arrangement of muscle material can also be pressed.The method is further advantage is that not only fiber-optic grating sensor bond-anchorage
Easily ensure, survival rate is high, accuracy is good, cheap etc. excellent with more convenient, reliable in quality, cost is implemented relative to former approach
Gesture, so, comprehensive cost performance is good, more for application value.
Further preferred embodiment is：In first and second embodiment, single-mode fiber or multi-mode optica lfiber grating sensing
Device outer surface, laying one layer of two-way fibrous web lattice cloth of covering, its width are the width or circumference appearance after muscle material compoiste adhering
It is more than fiber-optic grating sensor length Deng, length.It is act as by long fibres such as muscle material width or circumference（Laterally）, to light
Fiber grating sensor bonds with muscle material compoiste adhering from point bonding transition for face, can not only improve bond quality, can more improve
Perception accuracy of the fiber-optic grating sensor to muscle material ess-strain.
In the above-described embodiments, the fiber content of carbon fibre bar material 1 is more than or equal to 65%, and when carbon fibre bar material 1 uses muscle
During tabular, its length is depending on Specific construction situation, and its width is 10~100mm, preferably 20 ㎜, and thickness is 1~10mm, excellent
Elect 2.5mm as, width and thickness ratio are 3~100, preferably 8.
Fig. 6, Fig. 7 show that the utility model applies the concrete application example in construction of bridge T girder construction.Fig. 6 shows in example
Gone out a pre-stressed carbon fiber stretch-draw anchor structure, including be arranged on T beam left ends be followed successively by from outside to inside jack 11,
Reaction frame 12, stretching end lock platform 14, the stretching end bottom plate 15 and carbon fiber being fixedly connected by glue anchor screw 13 with beam body 17
Anchorage 3, carbon fibre bar material 1；Being followed successively by carbon fiber anchorage 3, fixing end lock platform 14 from the inside to the outside, passing through glue on T beam right-hand members
The fixing end bottom plate 16 that anchor screw 13 is fixedly connected with beam body 17, the exposed surface of carbon fibre bar material 1 have by first or two embodiments
The fiber-optic grating sensor 2 of compoiste adhering.
The jack 11 for being installed on the front end of reaction frame 12 connects carbon fiber anchorage 3 by draw bolt, to carbon fibre bar material 1
Implement prestressed stretch-draw, after control stress for prestressing reaches design requirement, lock platform 14 is installed and locked using nut, lock platform 14
Linked by screw, pin key or groove and bottom plate 15,16, bottom plate 15,16 is fixedly connected simultaneously by glue anchor screw 13 with beam body 17
Transmit newly-increased tension stress.Fiber-optic grating sensor 2 and the compoiste adhering anchorage reliability of carbon fibre bar material 1 are good, stress deformation
Synchronous elongation, when the light source of external (FBG) demodulator enters fiber-optic grating sensor, the centre wavelength of its light is by muscle material 1 and sensor 2
Stress deformation and produce change, by monitoring this change so as to obtaining whether the ess-strain of muscle material 1 meets Design of Reinforcement
And construction quality requirement, realize the digitization supervision of pre-stressed carbon fiber intelligent tensioning work progress and quality.
Fig. 7 shows the concrete application example in construction of bridge T girder construction.The bottom of T girder constructions 17 sets three in advance in example
Stress carbon fibre bar material 1, is open to traffic after the completion of strengthening construction（Or load test）When, the natural downwarp carbon of T girder constructions 17 is fine
Muscle material 1 and 2 synchronous anamorphic stretching of fiber-optic grating sensor are tieed up, the centre wavelength that external (FBG) demodulator perceives light source produces change, led to
Cross and monitor this change so as to obtain the strain of muscle material 1 and the deflection deformation of T girder constructions, the light wave curve of demodulation is subjected to numeral
Change and handle and compress storage, data analysis center is sent to by Internet of Things, so as to realize that bridge structure reinforces the evaluation of efficiency.
Bridge structure strenthening member is to be damaged or fragile component, using intelligence structure reinforcement assembly reinforcement bridge knot
Structure, long term monitoring is realized using the intelligent characteristic after carbon fibre bar material 1 and the compoiste adhering of fiber-optic grating sensor 2, can not only be supervised
The Relaxation of prestressing situation of carbon determination fiber bar material 1, it can also realizing bridge structure health safety monitoring.
As shown in Figure 6, Figure 7, anchor structure includes the stretching end anchor plate 11 for being arranged on stretching end, successively will from outside to inside
Jack 13 that the one end of carbon fibre bar material 1 is fixedly connected with stretching end anchor plate 11, reaction frame 14, stretching end lock platform 15,
Pull end anchorage 16, the fixing end anchor plate 12 of fixing end is arranged on, from outside to inside successively by the other end of carbon fibre bar material 1 with consolidating
Fixing end lock platform 17 that fixed end anchor plate 12 is fixedly connected, fixing end anchorage 18, stretching end anchor plate 11 and fixing end anchoring
Plate 12 is fixedly connected by glue anchor screw 19 with beam body 20.Effect is used in order to optimize and improve implementation of the present utility model,
Technical characteristic is identical in other embodiments, and difference is：The fiber-optic grating sensor 2 of the compoiste adhering of carbon fibre bar material 1 is
Two or the more single-mode fibers for being written with one or more fiber gratings or more laid parallel to carbon fiber Impact direction
Mode fiber.
Embodiments above is only to illustrate structure of the present utility model, and one of ordinary skill in the art is at this
Various deformation and change can be made under the design of utility model, these deformations and change are included in protection of the present utility model
Within the scope of.
Claims (9)
- A kind of 1. bridge structure intelligence reinforcement assembly, it is characterised in that including：Carbon fibre bar material, is coated with optical fiber grating sensing Device and the covering portion bonded with the carbon fibre bar material surface, the anchor structure that the both ends of carbon fibre bar material and beam body are fixed, The fiber grating being connected with the fiber-optic grating sensor reconciles instrument；The fiber-optic grating sensor is the more multimode fibres or list for being written with one or more fiber gratings of parallel laying Mode fiber.
- 2. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that the fiber-optic grating sensor is located at Between two anchor structures.
- 3. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that the covering portion is described to be wrapped in Fiber-optic grating sensor outside is simultaneously bonded in the thermosetting or thermoplastic resin layer on carbon fibre bar material surface.
- 4. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that the cladding position is wrapped in described Simultaneously be bonded in the hot melt plastic glue-line on carbon fibre bar material surface on the outside of fiber-optic grating sensor, the hot melt plastic glue-line outer wrapping with Its mutually cohesive thermal contraction casing tube.
- 5. the bridge structure intelligence reinforcement assembly as described in claim 2 to 4 any one claim, it is characterised in that institute It is tabular to state carbon fibre bar material, and its width is 10~100mm, and thickness is 1~10mm, and width and thickness ratio are 3~100.
- 6. the bridge structure intelligence reinforcement assembly as described in claim 2 to 4 any one claim, it is characterised in that institute Carbon fibre bar material is stated as cylinder, a diameter of 3~50mm.
- 7. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that the fiber of the carbon fibre bar material contains Amount is more than or equal to 60%.
- 8. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that also include receiving simultaneously storing fiber optic light Grid reconcile the memory of the use state data for the carbon fibre bar material that instrument collects, and the use state number is obtained by Internet of Things According to and carry out the data analysis center of structural health safety analysis.
- 9. bridge structure intelligence reinforcement assembly as claimed in claim 1, it is characterised in that outside the fiber-optic grating sensor Surface laying one layer of two-way fibrous web lattice cloth of covering, its width is equal for the width after muscle material compoiste adhering or circumference, long Spend for more than fiber-optic grating sensor length, grid spacing is 1~20mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720426804.7U CN206876315U (en) | 2017-04-21 | 2017-04-21 | Bridge structure intelligence reinforcement assembly |
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| CN201720426804.7U CN206876315U (en) | 2017-04-21 | 2017-04-21 | Bridge structure intelligence reinforcement assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024305A (en) * | 2017-04-21 | 2017-08-08 | 深圳市威士邦建筑新材料科技有限公司 | The method of bridge structure intelligence reinforcement assembly and fiber-optic grating sensor compoiste adhering |
| CN108982002A (en) * | 2018-08-08 | 2018-12-11 | 宜春学院 | A kind of temperature compensation type quartz crystal pressure transducer |
| CN113982192A (en) * | 2021-12-15 | 2022-01-28 | 广州大学 | Carbon nanofiber modified FRP rib and preparation method and application thereof |
| CN116697917A (en) * | 2023-04-28 | 2023-09-05 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
-
2017
- 2017-04-21 CN CN201720426804.7U patent/CN206876315U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024305A (en) * | 2017-04-21 | 2017-08-08 | 深圳市威士邦建筑新材料科技有限公司 | The method of bridge structure intelligence reinforcement assembly and fiber-optic grating sensor compoiste adhering |
| CN108982002A (en) * | 2018-08-08 | 2018-12-11 | 宜春学院 | A kind of temperature compensation type quartz crystal pressure transducer |
| CN113982192A (en) * | 2021-12-15 | 2022-01-28 | 广州大学 | Carbon nanofiber modified FRP rib and preparation method and application thereof |
| CN116697917A (en) * | 2023-04-28 | 2023-09-05 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
| CN116697917B (en) * | 2023-04-28 | 2024-03-08 | 齐鲁工业大学(山东省科学院) | Adjustable long gauge length optical fiber distributed strain monitoring device and monitoring and installing method thereof |
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