CN208333426U - A kind of constructing device of the unstressed environment of cement concrete - Google Patents
A kind of constructing device of the unstressed environment of cement concrete Download PDFInfo
- Publication number
- CN208333426U CN208333426U CN201820945474.7U CN201820945474U CN208333426U CN 208333426 U CN208333426 U CN 208333426U CN 201820945474 U CN201820945474 U CN 201820945474U CN 208333426 U CN208333426 U CN 208333426U
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- Prior art keywords
- unstressed
- cylinder
- strain
- cement concrete
- environment
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Abstract
The utility model belongs to technical field of civil engineering, is related to a kind of constructing device of unstressed environment of cement concrete, including unstressed cylinder and the strain gauge being arranged on unstressed cylinder and strain compensation unit；Unstressed cylinder is hollow and both ends are provided with the cylinder of opening；Unstressed cylinder is cylinder made of thermometal material.The utility model, which provides, a kind of has blocked the outer concrete of cylinder to the constructing device of the interference of cylinder inner concrete strain regime and the unstressed environment of cement concrete that can reduce the obstruction that an end concrete shrinks cylinder inner concrete.
Description
Technical field
The utility model belongs to technical field of civil engineering, is related to a kind of construction dress of unstressed environment of cement concrete
It sets.
Background technique
In cement concrete constructions object health monitoring technique, the reliability of strain measurement be computation of structure stress correctly with
No deciding factor.The influence factor of cement concrete strain, especially early stage strain is numerous, the angle constituted from stress,
It can be classified as two classes: ess-strain component and non-stress strain component.The former is related with structural stress, the latter and structural stress
It is unrelated, the latter should be rejected when carrying out Stress calculation.Currently, strain mainly by electric resistance wire strain gauge, vibrating string extensometer,
Grating fibers formula strain gauge obtains.And the concrete overall strain that strain is certain period is surveyed, contraction, creep comprising the plastic stage
Equal non-stress strains component.In order to reduce the interference that the part components of strain generate concrete structure Stress calculation, there is scholar
The method for keeping apart strain gauge and periphery concrete and peripheral concrete using isolating device is proposed, constructing device is interior without knot
The environment of structure stress realizes the measurement of non-stress strain component.Overall strain is measured by parallel test again, and then calculates stress and answers
Become.However, the introducing of cylinder changes around coagulation since unstressed environment is by the rigid canister construction of larger size
The stress state of soil, will generate larger interference to surveyed non-stress strain.
Utility model content
In order to solve the above technical problems in background technology, the utility model provides a kind of blocked and mixes outside cylinder
It coagulates the native interference to cylinder inner concrete strain regime and the water for the obstruction that an end concrete shrinks cylinder inner concrete can be reduced
The constructing device of cement concrete is unstressed environment.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of constructing device of the unstressed environment of cement concrete, it is characterised in that: the unstressed ring of cement concrete
The constructing device in border includes unstressed cylinder and the strain gauge being arranged on unstressed cylinder and strain compensation unit；It is described
Unstressed cylinder is hollow and both ends are provided with the cylinder of opening；The unstressed cylinder is circle made of thermometal material
Cylinder.
Preferably, strain gauge used by the utility model includes axial strain piece；The axial strain piece setting exists
On the outer wall of unstressed cylinder；It is axial axial parallel with unstressed cylinder where the axial strain piece.
Preferably, strain gauge used by the utility model further includes radial strain piece；The radial strain piece setting
Unstressed cylinder in the radial direction.
Preferably, strain compensation unit used by the utility model includes temperature control tube and the control that is connected with temperature control tube
Device processed；The temperature control tube winding is arranged on the outer wall of unstressed cylinder.
Preferably, being coated with butter layer on the inner wall of unstressed cylinder used by the utility model.
Preferably, the both ends of unstressed cylinder used by the utility model are provided with film seal film.
Preferably, the both ends of unstressed cylinder used by the utility model are provided with plastic film sealing film.
Preferably, the barrel thickness 1mm-2mm of unstressed cylinder used by the utility model；The unstressed cylinder
Outer diameter is 36mm-50mm.
Preferably, the outer surface of strain gauge used by the utility model and the outer surface of temperature control tube are provided with envelope
Fill film.
Preferably, the outer surface of strain gauge used by the utility model and the outer surface of temperature control tube are provided with ring
Oxygen resin-encapsulated film.
The utility model has the advantages that:
The utility model provides a kind of constructing device of unstressed environment of cement concrete, which includes unstressed circle
Cylinder and the strain gauge and strain compensation unit being arranged on unstressed cylinder；Unstressed cylinder is hollow and both ends are provided with
The cylinder of opening；Unstressed cylinder is cylinder made of thermometal material.The utility model by unstressed cylinder by cylinder,
Outer cement concrete separates, and has blocked outer interference of the concrete to cylinder inner concrete strain regime of cylinder, has been unstressed cylinder
Cylinder inner concrete built the not unstressed environment by external interference；Since unstressed cylinder provided by the utility model is
Thermometal material is made, and the harmomegathus of unstressed cylinder can be adjusted using strain compensation unit according to the measured value of strain gauge, mends
It repays unstressed cylinder itself and introduces the compensation changed to cylinder inner concrete strain regime.The utility model realizes an inner concrete
Unstress state, the strain measurement that can be used under the unstressed environment of cement concrete, wide range of services is in field of civil engineering water
The stress monitoring of cement concrete works.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the constructing device of the unstressed environment of cement concrete provided by the utility model；
Wherein:
1- is unstressed cylinder；2- strain gauge；3- strain compensation unit；31- temperature control tube；32- controller.
Specific embodiment
Referring to Fig. 1, the utility model provides a kind of constructing device of unstressed environment of cement concrete, the coagulating cement
The constructing device of native unstressed environment includes unstressed cylinder 1 and the strain gauge 2 being arranged on unstressed cylinder 1 and strain
Compensating unit 3；Unstressed cylinder 1 is hollow and both ends are provided with the cylinder of opening；Unstressed cylinder 1 is thermometal material system
At cylinder.
Wherein: strain gauge 2 provided by the utility model includes at least axial strain piece；The setting of axial strain piece is answered in nothing
On the outer wall of power cylinder 1；It is axial axial parallel with unstressed cylinder 1 where axial strain piece；In addition, strain gauge 2 also wraps
Include radial strain piece；Unstressed cylinder 1 is arranged in the radial direction in radial strain piece.
Strain compensation unit 3 used by the utility model includes temperature control tube 31 and the controller being connected with temperature control tube 31
32；The winding of temperature control tube 31 is arranged on the outer wall of unstressed cylinder 1.31 via controller 32 of temperature control tube is connected with external power supply, control
Device 32 processed can realize that the temperature of temperature control tube is adjusted.The utility model is divided the inside and outside cement concrete of cylinder by unstressed cylinder
It separates, has blocked outer interference of the concrete to cylinder inner concrete strain regime of cylinder；Meanwhile can be according to the measured value of strain gauge, benefit
The harmomegathus that unstressed cylinder is adjusted with strain compensation unit compensates unstressed cylinder itself and introduces to cylinder inner concrete strain regime
The compensation of change.The utility model realizes the unstress state of an inner concrete, can be used for the unstressed environment of cement concrete
Under strain measurement, wide range of services is in the stress monitoring of field of civil engineering cement concrete constructions object.
Butter layer is coated on the inner wall of unstressed cylinder 1, the both ends of unstressed cylinder 1 are provided with film seal film,
Especially plastic film sealing film.The barrel thickness 1mm-2mm of unstressed cylinder 1；The outer diameter of unstressed cylinder 1 is 36mm-50mm.
The utility model smears butter when specifically used in cylinder, reduce the obstruction that barrel shrinks cylinder inner concrete；Cylinder both ends use modeling
Expect film seal, reduces the obstruction that cylinder end concrete shrinks cylinder inner concrete.
The outer surface of strain gauge 2 and the outer surface of temperature control tube 31 are provided with encapsulating film, especially epoxy resin and encapsulate
Film.
Below by taking Cement Concrete Pavement Slab as an example, technical solution provided by the utility model is described in detail:
A kind of constructing device of the unstressed environment of cement concrete, including unstressed cylinder 1, strain gauge 2, strain compensation list
First 3 three parts.Wherein: strain gauge 2 is pasted on the barrel of unstressed cylinder 1；The temperature control tube 31 of strain compensation unit 3 is wrapped in
On the outer wall of unstressed cylinder 1, the controller 32 through strain compensation unit 3 is connect with external power supply.Unstressed cylinder 1 is in temperature control
It expands with heat and contract with cold when 31 temperature change of pipe, controller 32 can carry out precision to the temperature of temperature control tube 31 according to the measured value of strain gauge 2
For 0.1 DEG C of adjusting.
1, preparation
Concrete is filled up in unstressed cylinder, and is plugged and pounded closely knit.Using plastic seal membrana oralis by sealing two ends.Unstressed
The radial and axial upper stickup foil gauge of the barrel of cylinder, surface is encapsulated using epoxy resin, and is connected with Acquisition Instrument.It is answered in nothing
The temperature control tube that three groups of internal diameters are 6mm is wound around power cylinder, appearance is encapsulated with epoxy resin；By temperature control tube and controller, power supply
Connection.
2, installment work
The unstressed cylinder, strain gauge and the compensating unit that are equipped with integrally are embedded in cement concrete to be measured, and adjusted
It is whole to suitable position.Parallel test is done simultaneously, by the cement concrete of built-in type cement concrete strain gauge embedment equal conditions
It is interior.
3, strain compensation works
Strain gauge and Acquisition Instrument, controller and power supply are connected, unstressed cylinder harmomegathus is adjusted using controller, makes strain gauge
Reading it is consistent with the measured value of built-in type cement concrete strain gauge in parallel test.
4, at this point, being unstressed environment in unstressed cylinder.
Claims (10)
1. a kind of constructing device of the unstressed environment of cement concrete, it is characterised in that: the unstressed environment of cement concrete
Constructing device include unstressed cylinder (1) and strain gauge (2) and strain compensation list on unstressed cylinder (1) be set
First (3)；The unstressed cylinder (1) is hollow and both ends are provided with the cylinder of opening；The unstressed cylinder (1) is temperature-sensitive gold
Belong to cylinder made of material.
2. the constructing device of the unstressed environment of cement concrete according to claim 1, it is characterised in that: the strain gauge
It (2) include axial strain piece；The axial strain piece is arranged on the outer wall of unstressed cylinder (1)；The axial strain piece institute
Axial axial parallel with unstressed cylinder (1).
3. the constructing device of the unstressed environment of cement concrete according to claim 2, it is characterised in that: the strain gauge
It (2) further include radial strain piece；Radial strain piece setting unstressed cylinder (1) in the radial direction.
4. the constructing device of the unstressed environment of cement concrete according to claim 1 or 2 or 3, it is characterised in that: described
Strain compensation unit (3) includes temperature control tube (31) and the controller (32) being connected with temperature control tube (31)；The temperature control tube (31)
Winding is arranged on the outer wall of unstressed cylinder (1).
5. the constructing device of the unstressed environment of cement concrete according to claim 4, it is characterised in that: described unstressed
Butter layer is coated on the inner wall of cylinder (1).
6. the constructing device of the unstressed environment of cement concrete according to claim 5, it is characterised in that: described unstressed
The both ends of cylinder (1) are provided with film seal film.
7. the constructing device of the unstressed environment of cement concrete according to claim 6, it is characterised in that: described unstressed
The both ends of cylinder (1) are provided with plastic film sealing film.
8. the constructing device of the unstressed environment of cement concrete according to claim 7, it is characterised in that: described unstressed
The barrel thickness 1mm-2mm of cylinder (1)；The outer diameter of the unstressed cylinder (1) is 36mm-50mm.
9. the constructing device of the unstressed environment of cement concrete according to claim 8, it is characterised in that: the strain gauge
(2) outer surface of outer surface and temperature control tube (31) is provided with encapsulating film.
10. the constructing device of the unstressed environment of cement concrete according to claim 9, it is characterised in that: the strain
The outer surface of the outer surface and temperature control tube (31) of counting (2) is provided with epoxy resin encapsulating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820945474.7U CN208333426U (en) | 2018-06-19 | 2018-06-19 | A kind of constructing device of the unstressed environment of cement concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820945474.7U CN208333426U (en) | 2018-06-19 | 2018-06-19 | A kind of constructing device of the unstressed environment of cement concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208333426U true CN208333426U (en) | 2019-01-04 |
Family
ID=64771572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820945474.7U Expired - Fee Related CN208333426U (en) | 2018-06-19 | 2018-06-19 | A kind of constructing device of the unstressed environment of cement concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208333426U (en) |
-
2018
- 2018-06-19 CN CN201820945474.7U patent/CN208333426U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20190619 |