CN108952015A - It is a kind of to monitor grouting plumpness and the precast assembly grout sleeve of stress variation and preparation method thereof - Google Patents
It is a kind of to monitor grouting plumpness and the precast assembly grout sleeve of stress variation and preparation method thereof Download PDFInfo
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- CN108952015A CN108952015A CN201810835237.XA CN201810835237A CN108952015A CN 108952015 A CN108952015 A CN 108952015A CN 201810835237 A CN201810835237 A CN 201810835237A CN 108952015 A CN108952015 A CN 108952015A
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- grating sensor
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- 239000011440 grout Substances 0.000 title claims abstract description 136
- 238000002360 preparation method Methods 0.000 title description 5
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 238000000338 in vitro Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 18
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 13
- 239000004567 concrete Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Optical Transform (AREA)
Abstract
A kind of precast assembly grout sleeve monitoring grouting plumpness and stress variation, including grout sleeve ontology, fiber-optic grating sensor and (FBG) demodulator；The both ends of the grout sleeve ontology are reinforcing bar insertion end, and the two-port of the grout sleeve ontology is respectively arranged with sealing ring and end cover, and the end cover is used with grout sleeve ontology and is threadedly coupled；Grouting mouth and grout outlet are respectively arranged on the side at the both ends of the grout sleeve ontology；Positioning pin and alignment pin are also respectively provided in the middle part of the grout sleeve ontology；In grout outlet side, the fiber-optic grating sensor passes through outgoing cable and (FBG) demodulator circuit connection for the fiber-optic grating sensor setting.The present invention can monitor the plumpness of grouting in engineering construction, it can according to need monitoring precast assembly at any time during working service simultaneously and build the crucial carrying situation of stress point and the variation of ambient temperature and humidity, provide reliable foundation to the maintenance, maintenance and safety of building.
Description
Technical field
Grouting plumpness can be monitored the present invention relates to a kind of bar connecting apparatus and preparation method thereof, especially one kind and is answered
The precast assembly grout sleeve and preparation method thereof of power variation.
Background technique
With the fast development of Building Trade in China industrialization, prefabricated concrete structure is short with construction period, site operation
Main way of the advantages that workload is few, energy conservation and environmental protection as construction industry industrialized development.In prefabricated concrete structure, in advance
The quality of connection of component processed directly affects the degree of safety of concrete building structures, therefore the interconnection technique of prefabricated components, especially
It is that the interconnection technique of prefabricated components steel bar stress has been to be concerned by more and more people.
The connection of prefabricated components stress is the key that reliably to guarantee fabricated construction safety and meet anti-seismic performance, and assemble
The critical issue that can formula structure promote and apply.Currently, the reinforcing bar in prefabricated assembly structural connects most important mode both at home and abroad
It is reinforced bar sleeve grouting connection: is inserted into reinforcing bar and the grouting of cement injection base in pre-buried metal sleeve in precast concrete
Material hardens the steel reinforcement abutting joints connection abbreviation sleeve connection to form entirety and realize power transmission by mixture.
The key technology applicability that reinforced bar sleeve grouting is connected to fabricated construction is wider: it is by being specifically designed production
The assembly of the sleeve of processing, mating grouting material and reinforcing bar assembling, when connecting reinforcing bar by injecting fast hard contraction-free grouting concrete,
Interlocking connection reinforcing bar and sleeve are cohered by between material.Sleeve grouting is connected with reliable performance, applicability is wide, pacifies
The advantages that dress is easy.But how to guarantee the quality of grouting when construction, it is a uneasy problem all the time.
Summary of the invention
It is an object of the invention to: a kind of precast assembly grouting set that can monitor grouting plumpness and stress variation is provided
Cylinder, it monitors the plumpness of grouting in engineering construction, while can according to need monitoring at any time in advance during working service
The carrying situation of Building block key stress point processed provides reliable foundation to the maintenance, maintenance and safety of building, with solution
The certainly above problem existing for prior art.Invention also provides the prefabricated spellings that this can monitor grouting plumpness and stress variation
Fill the production construction method of grout sleeve.
The technical solution to solve the above problems is: one kind can monitor the precast assembly grouting of grouting plumpness and stress variation
Sleeve, the grout sleeve ontology including having cavity, the both ends of the grout sleeve ontology are reinforcing bar insertion end, the grouting
The Single port of sleeve body is provided with sealing ring, and another port is provided with end cover, the end cover and grout sleeve
Ontology is using threaded connection；The grout sleeve ontology, which is located on the side of sealing ring one end, is provided with grouting mouth, the grouting
Sleeve body, which is located on the side of end cover one end, is provided with grout outlet；It is also respectively provided in the middle part of the grout sleeve ontology
Positioning pin and alignment pin；The precast assembly grout sleeve further includes having fiber-optic grating sensor and (FBG) demodulator；The fiber grating
Sensor setting passes through outgoing cable and (FBG) demodulator circuit connection in grout outlet side, the fiber-optic grating sensor.
Further, the sulculus I of 1~3 circle, at least one institute are opened up in the edge of processing grout sleeve body end screw thread
It states fiber-optic grating sensor and is encapsulated in sulculus I and be coupled into an entirety with grout sleeve ontology.
Further, between 0.5mm~2mm, the width of the sulculus I takes the value range of the depth of the sulculus I
It is worth range between 0.5 mm~5mm.
Further, the fiber-optic grating sensor is arranged at the escape that processing grout sleeve body end screw thread is formed
Or it is arranged in end cover bottom.
Further, the end cover bottom opens up the sulculus II of 1 ~ 3 circle, and one end of sulculus II is provided with opening；
At least one described fiber-optic grating sensor is coupled in sulculus II and encapsulates, and the lead-out wire of each fiber-optic grating sensor is put
It sets in opening.
Further, the depth of the sulculus II is H, the value range of H are as follows: 0.5mm≤H≤2mm, the width of the sulculus II
Degree is D, the value range of D are as follows: 0.5 mm≤D≤5mm；The width of the opening is D1, the value range of D1 are as follows: 8mm≤D1
≤16mm。
Further, the outgoing cable passes through grout outlet extraction grout sleeve and originally connect in vitro with (FBG) demodulator.
Further, grout pipe is installed, the top of grout pipe is configured with adaptable pipe plug on the grouting mouth；It is described go out
Grout outlet is installed, the top of the grout outlet is configured with adaptable pipe plug on slurry mouth.
It is relevant another solution is that it is a kind of monitor grouting plumpness and stress variation precast assembly grout sleeve
Production method, it is that installation makes above-mentioned one kind and can monitor the precast assembly grout sleeve of grouting plumpness and stress variation
Method；Itself the following steps are included:
A, it stocks up: getting out round steel used in production grout sleeve ontology；
B, corresponding rolling tooling used in installation production grout sleeve ontology；
C, roll forming grout sleeve ontology；
D, recessing, vehicle hole machined are carried out to grout sleeve ontology, sealing ring and end cover by technical requirements；
E, welding grouting mouth and grout outlet；
F, fiber-optic grating sensor is cleaned, it is bonded in mounting groove and lead is welded on grout outlet side；
G, the lead, packaged fiber grating sensor, protection lead of fiber-optic grating sensor are welded；
H, sealing ring and end cover are installed；
I, positioning pin and alignment pin are installed；
J, outgoing cable protects.
Due to taking above structure, the one kind of the present invention can monitor the precast assembly grouting of grouting plumpness and stress variation
Sleeve and preparation method thereof has the advantages that
The present invention provides the precast assembly grout sleeves that one kind can monitor grouting plumpness and stress variation, it is in engineering construction
When monitoring grouting plumpness, while can according to need during working service monitoring precast assembly building at any time it is crucial by
The carrying situation in force and the variation of ambient temperature and humidity, to the maintenance, maintenance and safety of building provide reliably according to
According to.The present invention uses fiber-optic grating sensor to have the advantage that 1 as detecting element, low, electromagnetism interference, corrosion resistant is lost
Erosion, signal transmission distance are long；2, small in size, implantation grout sleeve inside configuration forms optical fiber sensing network, guarantees monitoring effect,
Normal construction technique is not influenced, ensure that the quality of construction, and can monitor in real time to service condition, and bigger guarantee uses
Safety.
The prefabricated spelling of grouting plumpness and stress variation can be monitored to the one kind of the present invention with reference to the accompanying drawings and examples
The technical characteristic of dress grout sleeve and preparation method thereof is described further.
Detailed description of the invention
Fig. 1 is the internal junction for the precast assembly grout sleeve that the one kind of the present invention can monitor grouting plumpness and stress variation
Structure schematic diagram；
Fig. 2 is that the external structure for the precast assembly grout sleeve that the one kind of the present invention can monitor grouting plumpness and stress variation is shown
It is intended to；
Fig. 3 is that the use state for the precast assembly grout sleeve that the one kind of the present invention can monitor grouting plumpness and stress variation is shown
It is intended to；
Fig. 4 is the schematic diagram that fiber-optic grating sensor is installed when grout sleeve body end has escape；
Fig. 5 is the schematic diagram (offering 1 circle sulculus II) that fiber-optic grating sensor is mounted on end cover bottom；
Fig. 6 is the end cover cross-sectional view for being equipped with fiber-optic grating sensor；
Fig. 7 is the schematic diagram that end cover bottom offers 2 circle sulculuses II；
Fig. 8 is the schematic diagram that end cover bottom offers 3 circle sulculuses II；
Fig. 9 is the process flow chart for the precast assembly grout sleeve that production can monitor grouting plumpness and stress variation；
Figure 10 is the schematic diagram that can monitor the precast assembly grout sleeve construction and installation of grouting plumpness and stress variation.
In figure:
1- reinforcing bar, 2- sealing ring, 3- grouting socket, 31- grout pipe, 4- grout sleeve ontology, 5- grouting material, 6- positioning pin, 7-
Alignment pin, 8- grout outlet, 81- grout outlet, 9- pipe plug, 10- outgoing cable, 11- grating sensor, 12- end cover, 13- solution
Adjust instrument, 14- escape, 15- sulculus II, 16- opening；M1- side template, M2- Side Template.
Specific embodiment
Embodiment one:
A kind of precast assembly grout sleeve monitoring grouting plumpness and stress variation, the grout sleeve sheet including having cavity
Body 4, the grout sleeve ontology 4 are rolled by smooth bar, and the both ends of the grout sleeve ontology 4 are that reinforcing bar 1 is inserted into
End, the Single port of the grout sleeve ontology 4 are provided with sealing ring 2, and another port is provided with end cover 12, the sealing
End cap 12 is used with grout sleeve ontology 4 and is threadedly coupled；The grout sleeve ontology 4, which is located on the side of 2 one end of sealing ring, to be set
It is equipped with grouting mouth 3, the grout sleeve ontology 4, which is located on the side of 12 one end of end cover, is provided with grout outlet 8；The grouting
Positioning pin 6 and alignment pin 7 are also respectively provided in the middle part of sleeve body 4；The precast assembly grout sleeve further includes having fiber grating
Sensor 11 and (FBG) demodulator 13；The fiber-optic grating sensor 11 is arranged in grout outlet side, the fiber-optic grating sensor 11
Pass through outgoing cable 10 and 13 circuit connection of (FBG) demodulator.The outgoing cable 10 passes through grout outlet 8 and draws outside grout sleeve ontology 4
It is connect with (FBG) demodulator 13.
As further improvement of the present invention, grout pipe 31 is installed on the grouting mouth 3, the top of grout pipe 31 is matched
It is equipped with adaptable pipe plug；Grout outlet 81 is installed, the top of the grout outlet 81 is configured with adaptable on the grout outlet 8
Pipe plug 9.
According to 4 end construction of grout sleeve ontology, 4 end of grout sleeve ontology, which refers to, carries out spiral shell with end cover 12
The end of line connection, the fiber-optic grating sensor 11, which can choose, is mounted on following several different positions:
Installation site 1:
In the sulculus I that the edge that the fiber-optic grating sensor 11 is mounted on 4 end thread of grout sleeve ontology opens up.
When the processing of 4 end thread of grout sleeve ontology does not have escape, after completing grout sleeve ontology 4 and machining,
In the edge of processing 4 end thread of grout sleeve ontology, i.e., position about 0 ~ 10mm, is opened as needed below the bottom of thread
If the sulculus I of 1-3 circle, between 0.5mm~2mm, the width of the sulculus I takes the value range of the depth of the sulculus I
It is worth range between 0.5 mm~5mm.After cleaned processing, by fiber-optic grating sensor 11 extraordinary binding material bonding or weldering
After connecing securely, encapsulation, which couples fiber-optic grating sensor 11 with grout sleeve ontology 4, becomes an entirety, and lead is accessed and is drawn
Cable 10, which extends, draws grout outlet 81.The quantity of the fiber-optic grating sensor 11 is at least one, sometimes worries there is damage
It can install multiple spare.
Installation site 2:
The fiber-optic grating sensor 11 is mounted at the escape 14 that processing 4 end thread of grout sleeve is formed.
When 4 end thread of grout sleeve ontology is machined with escape 14, the screw thread of escape end cover 12 here is
What torsion was not entered, so positive this space of good utilisation is pre-buried or inlays fiber-optic grating sensor 11, in escape bottom position
Directly an entirety, welding lead envelope are coupled into extraordinary binding material bonding packaged fiber grating sensor and grout sleeve 4
Grout outlet is drawn after dress.
Installation site 3: the fiber-optic grating sensor 11 is mounted on 12 bottom of end cover.
In 12 bottom of end cover, extra bus 1-3 circle II 15(of sulculus as needed is referring to Fig. 5 to Fig. 8), the sulculus II 15
Depth be H, the value range of H are as follows: 0.5mm≤H≤2mm, the width of the sulculus II are D (D=R2-R1), the value model of D
It encloses are as follows: 0.5 mm≤D≤5mm；And II 15 one end of sulculus is provided with opening 16；The width of the opening is D1, the value of D1
Range are as follows: 8mm≤D1≤16mm.Sealing, is led to one for lead-out wire after fiber-optic grating sensor 11 is coupled in sulculus II 15
End opening 16, cleaned, bonding, welding, encapsulation outgoing cable 10.The quantity of the fiber-optic grating sensor 11 is at least one
It is a.
Embodiment two:
A kind of production method for the precast assembly grout sleeve monitoring grouting plumpness and stress variation, it is that installation production is real
The method of precast assembly grout sleeve of grouting plumpness and stress variation can be monitored by applying one kind described in example one；It includes following
Step:
A, it stocks up: getting out round steel used in production grout sleeve ontology；
B, corresponding rolling tooling used in installation production grout sleeve ontology；
C, roll forming grout sleeve ontology 4；
D, recessing, vehicle hole machined are carried out to grout sleeve ontology 4, sealing ring 2 and end cover 12 by technical requirements；
E, welding grouting mouth 3 and grout outlet 8；
F, fiber-optic grating sensor 11 is cleaned, it is bonded in installation sulculus and lead is welded on side；
G, the lead, packaged fiber grating sensor, protection lead of fiber-optic grating sensor are welded；
H, sealing ring 2 and end cover 12 are installed；
I, positioning pin 6 and alignment pin 7 are installed；
J, outgoing cable 10 protects.
In the step D, vehicle hole refers to all holes for having to vehicle or brill.By technical requirements to 4 vehicle of grout sleeve ontology
Slot such as vehicle escape 14, sulculus I etc., vehicle hole such as vehicle place 7 preformed hole of alignment pin and 6 preformed hole of positioning pin etc.；To sealing
2 vehicle hole of ring such as vehicle places the preformed hole of reinforcing bar；To 12 recessing of end cover such as II 15(of vehicle sulculus it is necessary to when open it is small
Slot II, if there is escape or sulculus I there is no need to), vehicle hole such as vehicle places the preformed hole of reinforcing bar.
In the step F, in the escape 14 of the fiber-optic grating sensor bonding in step D or it is bonded in
In sulculus I in step D or in bonding sulculus II 15 in step D.
In the step I, step H, sealing ring 2, end cover 12, alignment pin 7, positioning pin 6 respectively with grout sleeve sheet
Body 4 is all using threaded connection, and alignment pin 7, positioning pin 6, which can be market, the screw rod or special long spiral shell for selling enough length
Bar can also be with.It is motionless by being screwed into the screw-in grout sleeve ontology 4 of sealing ring 2 when installation, then alignment pin 7, positioning pin 6 are divided
Head is not screwed into be installed.If directly applying the contact of upper sealing ring 2 and grout sleeve ontology 4 with adhesive glue using viscose glue
The surface of alignment pin 7 and positioning pin 6 is directly coated in face with adhesive glue, is inserted into corresponding preformed hole, checks surfacing
Complete installation.
The reinforcing bar grout sleeve lead spreading that monitors made above is drawn into concrete in engineering construction, is formed and is fixed
Line concentrating case, when construction grouting connect detection grouting after (FBG) demodulator it is whether full meet construction monitoring and later period using node by
The monitoring of the variations such as power.
(FBG) demodulator is connected when reinforcing bar grout sleeve connector construction grouting and measures its data variation, when grouting pressure range
Satisfaction >=0.05MPa, i.e., it is believed that being perfused full.
Reinforced bar sleeve is carried out using the precast assembly grout sleeve that can monitor grouting plumpness and stress variation of the present invention
When grouting connection, construction and installation are carried out according to Figure 10, the grout sleeve ontology 4 is placed vertically, and the grouting mouth 3 is located at pulp
The lower section of mouth 8.Inspection firmly installs after-pouring concrete, and intensity reaches technical requirements, and Side Template, side template and pipe plug are torn open
Fall, grouting socket is accessed into grouting mouth, the grouting material 5 that will be stirred starts grouting pump, when grout outlet flows out normal grouting material
After 5, grout outlet is blocked with pipe plug, when grouting material contacts top and is full of, continues to be in the milk, as the pressure of grouting material increases,
After pressure >=0.05MPa, stop grouting, it is full to be considered as grouting.
Fiber-optic grating sensor working principle:
When temperature, stress, strain or other physics locating for the fiber grating change, the period of grating or fiber core refractive index will
It changes, to make the wavelength of reflected light change, by the variation of reflected light wavelength before and after measurement physical quantity variation, just
The situation of change of measured physical quantity can be obtained.Fiber-optic grating sensor has electromagnetism interference, and size is small, light-weight, heatproof
Performance is good.Multiplexing capacity is strong, long transmission distance, corrosion-resistant, highly sensitive, passive device, it is easily-deformable the advantages that.
The present invention utilizes the characteristics of fiber-optic grating sensor and advantage, is embedded in fiber-optic grating sensor according to design close
Block the edge of 12 inner surface of lid (in the sulculus II 15 that i.e. 12 bottom of end cover opens up) or 4 end thread of grout sleeve ontology
In the sulculus I that place opens up or at the escape 14 of processing 4 end thread of grout sleeve formation, grouting material is perfused from the bottom up, applies
The location of working hour fiber-optic grating sensor is that grouting material reaches most significant end, detects most significant end full of grouting material and has pressure
Power, then it represents that filled.It, can if necessary to carry out the monitoring of environment and stress variation situation during the operation in later period
Directly (FBG) demodulator is connected to measure.
Therefore one kind of the invention can monitor the precast assembly grout sleeve connector of grouting plumpness and stress variation, have
Effect solve prefabricated components steel bar stress connection grouting plumpness technical problem and use process in key node by
Power situation of change provides safely reliable technical guarantee to prefabricated concrete structure.
Although above having made detailed description to the invention with a general description of the specific embodiments,
But on the basis of the invention, it can be made some modifications or improvements, this be to those skilled in the art it is aobvious and
It is clear to.Therefore, these modifications or improvements on the basis of without departing from the inventive spirit of the present invention, belong to wound of the present invention
Make claimed range.
Claims (9)
1. one kind can monitor the precast assembly grout sleeve of grouting plumpness and stress variation, the grout sleeve including having cavity
Ontology, the both ends of the grout sleeve ontology are reinforcing bar insertion end, and the Single port of the grout sleeve ontology is provided with sealing
Ring, another port are provided with end cover, and the end cover is used with grout sleeve ontology and is threadedly coupled；The grouting set
Cylinder ontology, which is located on the side of sealing ring one end, is provided with grouting mouth, and the grout sleeve ontology is located at the side of end cover one end
Grout outlet is provided on face；It is characterized by: being also respectively provided with positioning pin and alignment pin in the middle part of the grout sleeve ontology；It should
Precast assembly grout sleeve further includes having fiber-optic grating sensor and (FBG) demodulator；The fiber-optic grating sensor is arranged in grout outlet
Side, the fiber-optic grating sensor pass through outgoing cable and (FBG) demodulator circuit connection.
2. one kind according to claim 1 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
It is characterized in that: opening up the sulculus I of 1~3 circle, at least one described optical fiber in the edge of processing grout sleeve body end screw thread
Grating sensor package is coupled into an entirety in sulculus I with grout sleeve ontology.
3. one kind according to claim 2 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
Be characterized in that: the value range of the depth of the sulculus I is between 0.5mm~2mm, the value range of the width of the sulculus I
Between 0.5 mm~5mm.
4. one kind according to claim 1 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
Be characterized in that: the fiber-optic grating sensor is arranged at the escape that processing grout sleeve body end screw thread is formed or sets
It sets in end cover bottom.
5. one kind according to claim 4 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
Be characterized in that: the end cover bottom opens up the sulculus II of 1 ~ 3 circle, and one end of sulculus II is provided with opening；At least one
A fiber-optic grating sensor is coupled in sulculus II and encapsulates, and the lead-out wire of each fiber-optic grating sensor is placed on out
At mouthful.
6. one kind according to claim 5 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
Be characterized in that: the depth of the sulculus II is H, the value range of H are as follows: 0.5mm≤H≤2mm, the width of the sulculus II are D,
The value range of D are as follows: 0.5 mm≤D≤5mm；The width of the opening is D1, the value range of D1 are as follows: 8mm≤D1≤
16mm。
7. one kind according to claim 1 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
Be characterized in that: the outgoing cable passes through grout outlet extraction grout sleeve and originally connect in vitro with (FBG) demodulator.
8. one kind according to claim 1 can monitor the precast assembly grout sleeve of grouting plumpness and stress variation,
It is characterized in that: grout pipe being installed, the top of grout pipe is configured with adaptable pipe plug on the grouting mouth；On the grout outlet
Grout outlet is installed, the top of the grout outlet is configured with adaptable pipe plug.
9. the production method that one kind can monitor the precast assembly grout sleeve of grouting plumpness and stress variation, it is characterised in that:
It is the precast assembly grout sleeve that installation production one kind described in claim 1 can monitor grouting plumpness and stress variation
Method；Itself the following steps are included:
A, it stocks up: getting out round steel used in production grout sleeve ontology；
B, corresponding rolling tooling used in installation production grout sleeve ontology；
C, roll forming grout sleeve ontology；
D, recessing, vehicle hole machined are carried out to grout sleeve ontology, sealing ring and end cover by technical requirements；
E, welding grouting mouth and grout outlet；
F, fiber-optic grating sensor is cleaned, it is bonded in mounting groove and lead is welded on grout outlet side；
G, the lead, packaged fiber grating sensor, protection lead of fiber-optic grating sensor are welded；
H, sealing ring and end cover are installed；
I, positioning pin and alignment pin are installed；
J, outgoing cable protects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810835237.XA CN108952015A (en) | 2018-07-26 | 2018-07-26 | It is a kind of to monitor grouting plumpness and the precast assembly grout sleeve of stress variation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810835237.XA CN108952015A (en) | 2018-07-26 | 2018-07-26 | It is a kind of to monitor grouting plumpness and the precast assembly grout sleeve of stress variation and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952015A true CN108952015A (en) | 2018-12-07 |
Family
ID=64464258
Family Applications (1)
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| CN201810835237.XA Pending CN108952015A (en) | 2018-07-26 | 2018-07-26 | It is a kind of to monitor grouting plumpness and the precast assembly grout sleeve of stress variation and preparation method thereof |
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| CN111486999A (en) * | 2019-01-26 | 2020-08-04 | 桂林理工大学 | Self-sensing rebar packaging |
| CN112922329A (en) * | 2021-03-04 | 2021-06-08 | 桂林理工大学 | Intelligent ECC template and connection method between templates |
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| CN116952729B (en) * | 2023-09-21 | 2024-01-16 | 北京建筑大学 | Sleeve grouting quality detection device, assembly and use method thereof |
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