CN207197581U - A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector - Google Patents
A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector Download PDFInfo
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- CN207197581U CN207197581U CN201721270796.8U CN201721270796U CN207197581U CN 207197581 U CN207197581 U CN 207197581U CN 201721270796 U CN201721270796 U CN 201721270796U CN 207197581 U CN207197581 U CN 207197581U
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Abstract
The utility model discloses a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector,By setting piezoceramic transducer in the outside of reinforced bar sleeve body and inserting a three-way piezoelectric ceramic sensor element respectively in the embedded bar and insertion reinforcing bar both ends being fixedly connected by reinforced bar sleeve body,Then using any two therein as one group of monitoring ring,Pass through connected signal function generator and signal acquisition module,Pumping signal is produced using signal function generator,Make to produce stress wave in reinforced bar sleeve,Utilize electric signal caused by high-frequency signal acquisition system collection sensor,According to the change of signal energy,Using the signal analysis method of time reversal calculate the health status of analysis straight screw sleeve connection part,Non-destructive monitoring is carried out to prefabricated assembling type reinforced sleeve connector,Both concrete grouting compactness can be monitored in real time in construction,Sliding that again can be to reinforcing bar during military service and concrete etc. is monitored in real time.
Description
Technical field
The utility model belongs to field of civil engineering, and in particular to a kind of health of prefabricated assembling type reinforced sleeve connector
Monitoring system.
Background technology
Country advocates fabricated construction system of greatly developing, and prefabricated concrete structure has industrialization degree height, saved
Material, pollution is small, easy for construction, construction period is short, invests the advantages that gain quick return, is the direction of novel building industrialization development.
Being reliably connected for the main principal rod of prefabricated components ensures that prefabricated concrete structure has good anti-seismic performance
It is crucial.At present, the bar connecting major way in domestic and international prefabricated assembly structural is that reinforced bar sleeve grouting connects, sleeve grouting matter
Amount is to ensure the important step of fabricated construction safety.The scope of application of reinforced bar sleeve grouting connected mode is wider, not by reinforcing bar
The limitation of diameter, load classification and height of house etc., reliability are higher.
Because concrete and reinforcing bar are sealed in straight screw sleeve connection part, the compactness and reinforcing bar of concrete and concrete
Bonding situation must not learn that the detection for connector at present is tested simply by field sampling, it is so both inconvenient or
The safety of original structure is had an impact.It is therefore desirable to a kind of monitoring method can to its it is real-time monitoring and will not be to original structure
Safety has an impact.
Utility model content
The purpose of this utility model is that providing a kind of three-way piezoelectric ceramics that are based on is used for prefabricated assembling type reinforced sleeve company
The health monitor method of fitting, with overcome the deficiencies in the prior art.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector, including for connecting embedded bar and insertion
The reinforced bar sleeve body of reinforcing bar, reinforced bar sleeve body lead to structure in being, embedded bar and insertion reinforcing bar are respectively from reinforced bar sleeve sheet
Body both ends are stretched into reinforced bar sleeve body, and embedded bar and insertion reinforcing bar are fixed by pouring into mortar in reinforced bar sleeve body,
Embedded bar is placed in one end in reinforced bar sleeve body and is provided with lower three-way piezoelectric ceramic sensor element, lower three-way piezoelectric ceramic sensor element
Embedded bar end is set in for barreled structure, insertion reinforcing bar is placed in one end in reinforced bar sleeve body and is provided with upper three-way piezoelectric ceramics
Sensor, upper three-way piezoelectric ceramic sensor element be barreled structure be set in insertion it is end reinforced, reinforced bar sleeve outer body opens up
There are upper annular opening groove and lower annular opening groove, piezoelectric ceramic piece is respectively equipped with upper annular opening groove and lower annular opening groove
With lower piezoelectric potsherd, the lower edge of upper annular opening groove and insertion are end reinforced concordant, lower annular opening groove upper edge with advance
Bury end reinforced concordant；
Wherein upper three-way piezoelectric ceramic sensor element, lower three-way piezoelectric ceramic sensor element, upper piezoelectric ceramic piece and lower piezoelectric pottery
Ceramics any two forms one group of monitoring ring；Also include the signal function generator and signal acquisition mould being connected with one group of monitoring ring
Block, signal acquisition module are connected with signal processing module, and signal function generator is used for the transmitting of detection signal, signal function hair
Raw device is connected with monitoring ring by high-voltage signal amplifier, and high-voltage signal amplifier is used for the amplification of detection signal, signal acquisition
Module is used to carry out signal acquisition by monitoring ring, and signal processing module is used at the signal to signal acquisition module collection
Manage and by result preserve and publicity.
Further, this body sidewall of reinforced bar sleeve offers the grouting mouth connected with reinforced bar sleeve body interior cavity and gone out
Gas port, grouting mouth are located at gas outlet upper end.
Further, wherein upper three-way piezoelectric ceramic sensor element forms one group of monitoring ring with upper piezoelectric ceramic piece, for supervising
The X-direction and the insertion reinforcing bar of Z-direction that three-way piezoelectric ceramic sensor element is in same level with upper piezoelectric ceramic piece in survey
Sliding with mortar is monitored, and signal function generator is connected through high-voltage signal amplifier with upper three-way piezoelectric ceramic sensor element, on
Piezoelectric ceramic piece is connected by wire with signal acquisition module, and signal acquisition module is connected with signal processing module.
Further, wherein lower three-way piezoelectric ceramic sensor element forms one group of monitoring ring with lower piezoelectric potsherd, for supervising
The X-direction and the embedded bar of Z-direction that three-way piezoelectric ceramic sensor element is in same level with lower piezoelectric potsherd under surveying
Sliding with mortar is monitored, and signal function generator is connected through high-voltage signal amplifier with lower three-way piezoelectric ceramic sensor element, under
Piezoelectric ceramic piece is connected by wire with signal acquisition module, and signal acquisition module is connected with signal processing module.
Further, wherein upper three-way piezoelectric ceramic sensor element and lower three-way piezoelectric ceramic sensor element form one group of monitoring
Ring, upper three-way piezoelectric pottery is carried out along Y-direction for monitoring upper three-way piezoelectric ceramic sensor element and lower three-way piezoelectric ceramic sensor element
The monitoring of high-strength mortar compactness, signal function generator are believed through high pressure between porcelain sensor and lower three-way piezoelectric ceramic sensor element
Number amplifier is connected with upper three-way piezoelectric ceramic sensor element, and lower three-way piezoelectric ceramic sensor element passes through wire and signal acquisition module
Connection, signal acquisition module are connected with signal processing module.
Further, wherein upper three-way piezoelectric ceramic sensor element is identical with lower three-way piezoelectric ceramic sensor element structure, it is
Barrel, upper three-way piezoelectric ceramic sensor element includes three-way piezoelectric potsherd and interior to be successively set on three-way piezoelectric ceramic to outer
The anti-electrocoat of waterproof, coating for EMI shielding and cement mortar protective course on the outside of piece.
Further, upper piezoelectric ceramic piece is identical with lower piezoelectric ceramic chip structure, is arc-shaped, upper piezoelectric ceramic piece bag
Include semicircular ring piezoelectric ceramic piece and be successively set on from inside to outside semicircular ring piezoelectric ceramic piece outer ring surface the anti-electrocoat of waterproof,
Coating for EMI shielding and cement mortar protective course.
Further, upper three-way piezoelectric ceramic sensor element, lower three-way piezoelectric ceramic sensor element, upper piezoelectric ceramic piece and push
Electroceramics piece is drawn by wire；Reinforced bar sleeve body one end is provided with seal washer.
Compared with prior art, the utility model has technique effect beneficial below：
A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector of the utility model, by reinforced bar sleeve sheet
The outside of body sets piezoceramic transducer and in the embedded bar and insertion reinforcing bar being fixedly connected by reinforced bar sleeve body
A three-way piezoelectric ceramic sensor element is inserted at both ends respectively, then using any two therein as one group of monitoring ring, by with
Its signal function generator connected and signal acquisition module, form piezo-electric intelligent structure system with this, utilize signal function
Generator produces pumping signal, is amplified pumping signal using high-voltage signal amplifier, using the pumping signal of amplification to semicircle
Ring piezoelectric ceramic piece enters row energization, makes to produce stress wave in reinforced bar sleeve, stress wave acts on three-way piezoelectric ceramic sensor element and produced
Raw electric signal；Using electric signal caused by high-frequency signal acquisition system collection sensor, according to the change of signal energy, during utilization
Between inverting signal analysis method carry out calculate analysis straight screw sleeve connection part health status, to prefabricated assembling type reinforced sleeve
Connector carries out non-destructive monitoring, concrete grouting compactness can both be monitored in real time in construction, again can be to being on active service
Sliding of reinforcing bar and concrete etc. is monitored in real time in journey, and the utility model being capable of non-destructive monitoring and can be for prefabrication and assembly construction
Formula straight screw sleeve connection part carries out multinomial monitoring, it is not necessary to live pickup, avoid causing it is technologic complicated and avoid for
Structural damage.
Further, by using three-way piezoelectric ceramic sensor element reinforcing bar X can be realized in straight screw sleeve connection part to, Y
Comprehensive monitoring to, three directions of Z-direction.
Further, using the signal analysis method of time reversal, noise robustness is good, signal analysis accurate and effective.
Brief description of the drawings
Fig. 1 is the utility model detecting system figure.
Fig. 2 is the utility model reinforced bar sleeve grouting connector stereogram.
Fig. 3 is the utility model reinforced bar sleeve grouting connector mounting structure schematic diagram.
Fig. 4 is the utility model piezoceramic transducer structural representation.
Fig. 5 is the utility model three-way piezoelectric ceramic sensor element structural representation.
Fig. 6 is the utility model reinforced bar sleeve grouting connector profilograph.
Fig. 7 is the utility model reinforced bar sleeve grouting connector drawing in side sectional elevation.
Fig. 8 is the utility model monitoring system data collection and analysis early warning flow chart.
Wherein, 1, insertion reinforcing bar；2nd, embedded bar；3rd, seal washer；4th, reinforced bar sleeve body；5th, upper annular opening groove；
6th, lower annular opening groove；7th, be in the milk mouth；8th, gas outlet；9th, upper piezoelectric ceramic piece；10th, lower piezoelectric potsherd；11st, mortar；12nd, on
Three-way piezoelectric ceramic sensor element；13rd, lower three-way piezoelectric ceramic sensor element；15th, the anti-electrocoat of waterproof；16th, coating for EMI shielding；
17th, cement mortar protective course；18th, semicircular ring piezoelectric ceramic piece.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figures 1 to 8, a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector, including for even
Connect embedded bar 2 and insert the reinforced bar sleeve body 4 of reinforcing bar 1, reinforced bar sleeve body 4 leads to structure, embedded bar 2 and insertion in being
Reinforcing bar 1 is stretched into reinforced bar sleeve body 4 from the both ends of reinforced bar sleeve body 4 respectively, by pouring into mortar in reinforced bar sleeve body 4
11 fix embedded bar 2 and insertion reinforcing bar 1, and embedded bar 2 is placed in one end in reinforced bar sleeve body 4 and is provided with lower three-way piezoelectric pottery
Porcelain sensor 13, lower three-way piezoelectric ceramic sensor element 13 are that barreled structure is set in the end of embedded bar 2, and insertion reinforcing bar 1 is placed in
One end is provided with upper three-way piezoelectric ceramic sensor element 12 in reinforced bar sleeve body 4, and upper three-way piezoelectric ceramic sensor element 12 is barreled knot
Structure is set in insertion reinforcing bar 1 end, and the side wall of reinforced bar sleeve body 4 offers the filling with the connects with the internal cavities of reinforced bar sleeve body 4
Mouth 7 and gas outlet 8 are starched, grouting mouth 7 is located at the upper end of gas outlet 8, and the outside of reinforced bar sleeve body 4 offers the He of annular opening groove 5
Piezoelectric ceramic piece 9 is respectively equipped with lower annular opening groove 6, upper annular opening groove 5 and lower annular opening groove 6 and pushes electroceramics
Piece 10, the lower edge of upper annular opening groove 5 is concordant with insertion reinforcing bar 1 end, the lower upper edge of annular opening groove 6 and embedded bar 2
End is concordant；
Wherein go up three-way piezoelectric ceramic sensor element 12, lower three-way piezoelectric ceramic sensor element 13, upper piezoelectric ceramic piece 9 and push
Any two of electroceramics piece 10 forms one group of monitoring ring；Also include the signal function generator and signal being connected with one group of monitoring ring
Acquisition module, signal acquisition module are connected with signal processing module, and signal function generator is used for the transmitting of detection signal, signal
Function generator is connected with monitoring ring by high-voltage signal amplifier, and high-voltage signal amplifier is used for the amplification of detection signal, letter
Number acquisition module is used to carry out signal acquisition by monitoring ring, and signal processing module is used for the signal to signal acquisition module collection
Handled and by result preserve and publicity；
Wherein upper three-way piezoelectric ceramic sensor element 12 forms one group of monitoring ring with upper piezoelectric ceramic piece 9, for monitoring upper three
The X-direction and the insertion reinforcing bar 1 of Z-direction that be in piezoceramic transducer 12 and upper piezoelectric ceramic piece 9 in same level and
The sliding monitoring of mortar 11, signal function generator are connected through high-voltage signal amplifier with upper three-way piezoelectric ceramic sensor element 12,
Upper piezoelectric ceramic piece 9 is connected by wire with signal acquisition module, and signal acquisition module is connected with signal processing module；
Three-way piezoelectric ceramic sensor element 13 is wherein descended to form one group of monitoring ring with lower piezoelectric potsherd 10, for monitoring down three
The X-direction and the embedded bar 2 of Z-direction that be in piezoceramic transducer 13 and lower piezoelectric potsherd 10 in same level and
The sliding monitoring of mortar 11, signal function generator are connected through high-voltage signal amplifier with lower three-way piezoelectric ceramic sensor element 13,
Lower piezoelectric potsherd 10 is connected by wire with signal acquisition module, and signal acquisition module is connected with signal processing module；
Wherein upper three-way piezoelectric ceramic sensor element 12 and lower three-way piezoelectric ceramic sensor element 13 form one group of monitoring ring, are used for
Three-way piezoelectric ceramic sensor element 12 and lower three-way piezoelectric ceramic sensor element 13 carry out upper three-way piezoelectric ceramics biography along Y-direction in monitoring
The monitoring of high-strength mortar compactness, signal function generator are believed through high pressure between sensor 12 and lower three-way piezoelectric ceramic sensor element 13
Number amplifier is connected with upper three-way piezoelectric ceramic sensor element 12, and lower three-way piezoelectric ceramic sensor element 13 passes through wire and signal acquisition
Module is connected, and signal acquisition module is connected with signal processing module；
Wherein upper three-way piezoelectric ceramic sensor element 12 is identical with 13 structures of lower three-way piezoelectric ceramic sensor element, is tubbiness
Body, upper three-way piezoelectric ceramic sensor element 12 includes three-way piezoelectric potsherd 14 and interior to be successively set on three-way piezoelectric ceramic to outer
The anti-electrocoat 15 of waterproof, coating for EMI shielding 16 and the cement mortar protective course 17 in the outside of piece 14；
Upper piezoelectric ceramic piece 9 is identical with the structure of lower piezoelectric potsherd 10, is arc-shaped, and upper piezoelectric ceramic piece 9 includes half
Annulus piezoelectric ceramic piece 18 and the anti-electrocoat of waterproof for being successively set on the outer ring surface of semicircular ring piezoelectric ceramic piece 18 from inside to outside
15th, coating for EMI shielding 16 and cement mortar protective course 17, cement mortar protective course 17 and mortar mixture always, can be with height
Strength mortar is combined closely at one piece, and compatibility is good,
Upper three-way piezoelectric ceramic sensor element 12, lower three-way piezoelectric ceramic sensor element 13, upper piezoelectric ceramic piece 9 and lower piezoelectric pottery
Ceramics 10 is drawn by wire；
The one end of reinforced bar sleeve body 4 is provided with seal washer 3；
A kind of health monitor method of prefabricated assembling type reinforced sleeve connector, comprises the following steps：
Step 1, a three-way piezoelectric ceramics are fixed respectively in embedded bar to be connected and insertion reinforcing bar opposite side to pass
Sensor, and extraction wire, reinforced bar sleeve body is then inserted in, mortar is poured in reinforced bar sleeve body by embedded bar, insertion
Reinforcing bar and reinforced bar sleeve body are fixed, reinforced bar sleeve outer body respectively with embedded bar and insertion reinforcing bar at three-way piezoelectric
Be sticked a ring-shaped piezo ceramic piece at ceramic sensor element same level, by two three-way piezoelectric ceramic sensor elements and ring piezoelectric
Potsherd is connected as one group of monitoring ring with signal function generator and signal processing module two-by-two；
Step 2, using signal caused by signal function generator via high-voltage amplifier to three-way piezoelectric ceramic sensor element
Enter row energization；
Step 3, by by the signal being collected into analyze with the signal processing module that ring-shaped piezo ceramic piece is connected
To peak signal, the maintenance of straight screw sleeve connection part is completed to measure at present at the standard conditions with signal function generator transmission signal
Value contrast, establishes Damage coefficient EH：
In formula, Hi,jFor the energy vectors of peak signal, HiFor the different time sections i during work progress and military service
The energy vectors measured, H0The energy vectors when maintenance of standard conditions lower sleeve connector is completed,
If Damage coefficient EH levels off to zero, represent in construction that Grouted density is good or operation in connector reinforcing bar without
Sliding；When Damage coefficient EH is more than threshold value is set, then connector reinforcing bar in judging Grouted density difference in construction or runing
Slide.
In step 3, signal function processing is carried out by TRM analysis methods,
A Gaussian pulse x (t) is sent to three-way piezoelectric ceramic sensor element by signal function generator first, according to piezoelectricity
Effect sends stress wave, reaches ring-shaped piezo ceramic piece,
The system response function for defining health monitoring systems is h (t), the biography that the signal receiving end on reinforcing bar receives
Defeated signal is y (t), then it can be expressed as：
WhereinFor convolution operator, t is the time；
The signal received is subjected to time reversal, its signal is changed into：
Then using the signal after inverting as emission source, three-way piezoelectric ceramic sensor element is passed back by piezoelectric ceramic piece, by
In the positive inverse piezoelectric effect of piezoelectric ceramic piece, the function of piezoceramic transducer and piezoelectric ceramic actuator can be interchangeable,
Backout is carried out to the signal received in time domain, target sound waves or electromagnetic wave signal are subjected to reversion and retransmited, then
Obtain its focus signal yf(t), its expression formula is：
In formula,The auto-correlation function responded for system, also as time reversal operator；
From convolution and correlation principle, yf(t) can also be expressed as follows：
⊙ represents related operation (same or operator) in formula,
Because pulse signal is typically axisymmetric with the time, therefore x (t)=x (- t), so yf(t) can also be write
For：
As can be seen from the above equation, h (t) the ⊙ h (t) handled through time reversal are auto-correlation even functions, definable：
τ is the signal value changed at any time, be can transform to as t=0：
As can be seen from the above equation, as t=0, function reaches its maximum, its maximum be signal energy, and only and
System is relevant in itself, therefore its peak value has good noise immunity.
The energy of peak signal can be expressed as：Hi,j
The energy definition that different time sections i during work progress and military service is measured is Hi
The measurement of different time sections during describing work progress according to root-mean-square deviation criterion (RMSD) and be on active service
Value completes measuring value difference characteristic at present with the maintenance of straight screw sleeve connection part at the standard conditions, and the value is defined as into damage system
Number, is represented with EH, and energy vectors when sleeve connector maintenance is completed at the standard conditions are expressed as H0。
Damage coefficient EH finally is established, can be expressed as：
The energy indexes and work progress of the signal that piezoceramic transducer based on signal receiving end measures and military service
During the energy indexes of signal that measure of different time sections, it is possible to the situation of Grouted density, the sliding situation of reinforcing bar.
Damage coefficient EH can be used for describing due to connector slippage of reinforced bar how many situation in Grouted density size in construction and operation
Caused by energy transmission loss.
Claims (9)
1. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector, it is characterised in that including pre-buried for connecting
Reinforcing bar (2) and insertion reinforcing bar (1) reinforced bar sleeve body (4), reinforced bar sleeve body (4) be in lead to structure, embedded bar (2) and
Insertion reinforcing bar (1) is stretched into reinforced bar sleeve body (4) from reinforced bar sleeve body (4) both ends respectively, by reinforced bar sleeve body
(4) the fixed embedded bar (2) of mortar (11) is poured into and insertion reinforcing bar (1), embedded bar (2) are placed in reinforced bar sleeve body (4)
Interior one end is provided with lower three-way piezoelectric ceramic sensor element (13), and lower three-way piezoelectric ceramic sensor element (13) is that barreled structure is set in
Embedded bar (2) end, insertion reinforcing bar (1) are placed in reinforced bar sleeve body (4) interior one end and are provided with upper three-way piezoelectric ceramic sensor element
(12), upper three-way piezoelectric ceramic sensor element (12) is that barreled structure is set in insertion reinforcing bar (1) end, reinforced bar sleeve body (4)
Outside offers annular opening groove (5) and lower annular opening groove (6), and upper annular opening groove (5) and lower annular opening groove (6) are interior
It is respectively equipped with piezoelectric ceramic piece (9) and lower piezoelectric potsherd (10), lower edge and the insertion reinforcing bar of upper annular opening groove (5)
(1) end is concordant, and lower annular opening groove (6) upper edge is concordant with embedded bar (2) end；
Wherein upper three-way piezoelectric ceramic sensor element (12), lower three-way piezoelectric ceramic sensor element (13), upper piezoelectric ceramic piece (9) and under
Piezoelectric ceramic piece (10) any two forms one group of monitoring ring；Also include the signal function generator that is connected with one group of monitoring ring and
Signal acquisition module, signal acquisition module are connected with signal processing module, and signal function generator is used for the transmitting of detection signal,
Signal function generator is connected with monitoring ring by high-voltage signal amplifier, and high-voltage signal amplifier is used for putting for detection signal
Greatly, signal acquisition module is used to carry out signal acquisition by monitoring ring, and signal processing module is used to gather signal acquisition module
Signal handled and by result preserve and publicity.
2. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In reinforced bar sleeve body (4) side wall offers and the grouting mouth (7) of reinforced bar sleeve body (4) connects with the internal cavities and gas outlet
(8) mouth (7) that, is in the milk is located at gas outlet (8) upper end.
3. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In wherein upper three-way piezoelectric ceramic sensor element (12) forms one group of monitoring ring with upper piezoelectric ceramic piece (9), for monitoring upper three-dimensional
The X-direction and the insertion reinforcing bar of Z-direction that piezoceramic transducer (12) is in same level with upper piezoelectric ceramic piece (9)
(1) sliding with mortar (11) monitors, and signal function generator is through high-voltage signal amplifier and upper three-way piezoelectric ceramic sensor element
(12) connect, upper piezoelectric ceramic piece (9) is connected by wire with signal acquisition module, signal acquisition module and signal processing module
Connection.
4. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In wherein lower three-way piezoelectric ceramic sensor element (13) forms one group of monitoring ring with lower piezoelectric potsherd (10), for monitoring down three
The X-direction and the pre-buried steel of Z-direction being in piezoceramic transducer (13) and lower piezoelectric potsherd (10) in same level
The sliding of muscle (2) and mortar (11) monitors, and signal function generator is through high-voltage signal amplifier and lower three-way piezoelectric ceramic sensor
Device (13) is connected, and lower piezoelectric potsherd (10) is connected by wire with signal acquisition module, signal acquisition module and signal transacting
Module connects.
5. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In wherein upper three-way piezoelectric ceramic sensor element (12) and lower three-way piezoelectric ceramic sensor element (13) one group of monitoring ring of composition, are used for
Three-way piezoelectric ceramic sensor element (12) and lower three-way piezoelectric ceramic sensor element (13) carry out upper three-way piezoelectric pottery along Y-direction in monitoring
The monitoring of high-strength mortar compactness, signal function generator between porcelain sensor (12) and lower three-way piezoelectric ceramic sensor element (13)
It is connected through high-voltage signal amplifier with upper three-way piezoelectric ceramic sensor element (12), lower three-way piezoelectric ceramic sensor element (13) is by leading
Line is connected with signal acquisition module, and signal acquisition module is connected with signal processing module.
6. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In, wherein upper three-way piezoelectric ceramic sensor element (12) is identical with lower three-way piezoelectric ceramic sensor element (13) structure, it is barrel,
Upper three-way piezoelectric ceramic sensor element (12) includes three-way piezoelectric potsherd (14) and interior made pottery to the outer three-way piezoelectric that is successively set on
The anti-electrocoat of waterproof (15), coating for EMI shielding (16) and cement mortar protective course (17) on the outside of ceramics (14).
7. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In upper piezoelectric ceramic piece (9) is identical with lower piezoelectric potsherd (10) structure, is arc-shaped, and upper piezoelectric ceramic piece (9) includes half
Annulus piezoelectric ceramic piece (18) and be successively set on from inside to outside semicircular ring piezoelectric ceramic piece (18) outer ring surface waterproof it is anti-electric
Coating (15), coating for EMI shielding (16) and cement mortar protective course (17).
8. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In upper three-way piezoelectric ceramic sensor element (12), lower three-way piezoelectric ceramic sensor element (13), upper piezoelectric ceramic piece (9) and lower piezoelectric
Potsherd (10) is drawn by wire.
9. a kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector according to claim 1, its feature exist
In reinforced bar sleeve body (4) one end is provided with seal washer (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270796.8U CN207197581U (en) | 2017-09-29 | 2017-09-29 | A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270796.8U CN207197581U (en) | 2017-09-29 | 2017-09-29 | A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector |
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| CN207197581U true CN207197581U (en) | 2018-04-06 |
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| CN201721270796.8U Expired - Fee Related CN207197581U (en) | 2017-09-29 | 2017-09-29 | A kind of health monitoring systems of prefabricated assembling type reinforced sleeve connector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529614A (en) * | 2017-09-29 | 2018-01-02 | 长安大学 | A kind of health monitoring systems and method of prefabricated assembling type reinforced sleeve connector |
| CN108360743A (en) * | 2018-05-09 | 2018-08-03 | 长沙理工大学 | Built-in H-shaped steel prestressed concrete beam and preparation method thereof, and beam slippage monitoring device and method |
| CN111520617A (en) * | 2020-02-24 | 2020-08-11 | 重庆大学 | Device and method for monitoring cracking of mortar protective layer of Prestressed Concrete Cylinder Pipe (PCCP) based on piezoelectric sensing technology |
| WO2024055434A1 (en) * | 2022-09-14 | 2024-03-21 | 中交建筑集团有限公司 | Prefabricated-building sleeve grouting device and method |
| US11939768B1 (en) | 2022-09-14 | 2024-03-26 | CCCC Construction Group Co., Ltd. | Sleeve grouting device and method for prefabricated building |
-
2017
- 2017-09-29 CN CN201721270796.8U patent/CN207197581U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529614A (en) * | 2017-09-29 | 2018-01-02 | 长安大学 | A kind of health monitoring systems and method of prefabricated assembling type reinforced sleeve connector |
| CN107529614B (en) * | 2017-09-29 | 2024-03-29 | 长安大学 | Health monitoring system and method for prefabricated assembled steel bar sleeve connecting piece |
| CN108360743A (en) * | 2018-05-09 | 2018-08-03 | 长沙理工大学 | Built-in H-shaped steel prestressed concrete beam and preparation method thereof, and beam slippage monitoring device and method |
| CN111520617A (en) * | 2020-02-24 | 2020-08-11 | 重庆大学 | Device and method for monitoring cracking of mortar protective layer of Prestressed Concrete Cylinder Pipe (PCCP) based on piezoelectric sensing technology |
| CN111520617B (en) * | 2020-02-24 | 2022-12-09 | 重庆大学 | Device and method for monitoring cracking of mortar protective layer of prestressed concrete cylinder pipe based on piezoelectric sensing technology |
| WO2024055434A1 (en) * | 2022-09-14 | 2024-03-21 | 中交建筑集团有限公司 | Prefabricated-building sleeve grouting device and method |
| US11939768B1 (en) | 2022-09-14 | 2024-03-26 | CCCC Construction Group Co., Ltd. | Sleeve grouting device and method for prefabricated building |
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