CN217132418U - Device for monitoring prestress loss of steel strand - Google Patents
Device for monitoring prestress loss of steel strand Download PDFInfo
- Publication number
- CN217132418U CN217132418U CN202220627695.6U CN202220627695U CN217132418U CN 217132418 U CN217132418 U CN 217132418U CN 202220627695 U CN202220627695 U CN 202220627695U CN 217132418 U CN217132418 U CN 217132418U
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- CN
- China
- Prior art keywords
- groove
- steel strand
- monitoring
- optical fiber
- protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 description 6
- 238000012806 monitoring device Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a device for monitoring steel strand wires prestressing loss, the corrugated pipe comprises a corrugated pipe, the inside of bellows is run through and is provided with the protection groove that a plurality of size is the same, the inside of protection groove is run through and is provided with the steel strand wires, the inside of protection groove is run through and is provided with the second spacing groove, the inside of second spacing groove is provided with optical fiber sensor, the opposite side of second spacing groove runs through the protection groove and inwards is provided with the preformed groove, and the device overall structure is simple and easy practical, can realize the direct monitoring to the loss power to thereby can realize the accurate monitoring to the steel strand wires and can prevent the influence of the change of temperature to the monitoring result through setting up preformed groove, second spacing groove, optical fiber sensor, first spacing groove and temperature compensator.
Description
Technical Field
The utility model relates to a steel strand wires monitoring devices field especially relates to a device for monitoring steel strand wires prestressing loss.
Background
The steel strand is a steel product formed by stranding a plurality of steel wires, a zinc-aluminum alloy layer, an aluminum-coated layer, a copper-coated layer, epoxy resin and the like can be added on the surface of the carbon steel according to needs, and the zinc-coated steel strand is generally used for a carrier cable, a stay wire, a reinforcing core and the like and can also be used as a ground wire for overhead power transmission, a stopping cable on two sides of a road or a structural cable in a building structure. The common prestressed steel strand in the prestressed steel strand is a low-relaxation prestressed steel strand without a coating, is galvanized and is commonly used for bridges, buildings, water conservancy, energy, geotechnical engineering and the like, and the unbonded prestressed steel strand is commonly used for floor slabs, foundation engineering and the like;
the device of current monitoring steel strand wires prestressing loss still has the defect when using, and the monitoring devices that use at present is whole too complicated, and the efficiency of staff when using is lower to monitoring devices inside circuit is more, can appear the winding condition when monitoring, thereby leads to the device trouble, so need one kind now can solve the device that is used for monitoring steel strand wires prestressing loss of above problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a device for monitoring the prestress loss of a steel strand.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a device for monitoring the prestress loss of a steel strand comprises a corrugated pipe, wherein a plurality of protection grooves with the same size are arranged in the corrugated pipe in a penetrating mode, the steel strand is arranged in the protection grooves in a penetrating mode, a second limiting groove is arranged in the protection grooves in a penetrating mode, and an optical fiber sensor is arranged in the second limiting groove;
and a reserved groove is formed in the other side of the second limiting groove in a penetrating mode and penetrates through the protection groove.
As a further description of the above technical solution:
the other end of the protection groove is provided with a first limiting groove, and a temperature compensator is arranged in the first limiting groove.
As a further description of the above technical solution:
the top fixedly connected with connecting pipe of bellows, one side of optical fiber sensor is provided with the connecting wire, the other end of connecting wire runs through the outside linear connection of connecting pipe and is connected with the fiber grating demodulator and optical fiber sensor and temperature compensator carry out linear connection through the connecting wire.
The utility model discloses following beneficial effect has:
1. compared with the prior art, the device for monitoring the prestress loss of the steel strand is simple and practical in overall structure, can realize direct monitoring of loss force, and can realize accurate monitoring of the steel strand and prevent temperature change so as to influence a monitoring result by arranging the reserved groove, the second limiting groove, the optical fiber sensor, the first limiting groove and the temperature compensator;
2. compared with the prior art, this a device for monitoring steel strand wires prestressing loss can place the connecting wire through setting up the connecting pipe to can effectively prevent the fault problem that the winding takes place and leads to between monitoring process steel strand wires and the connecting wire.
Drawings
Fig. 1 is a cross-sectional view of a device for monitoring the prestress loss of a steel strand according to the present invention;
fig. 2 is a front view of a device for monitoring the prestress loss of a steel strand according to the present invention;
FIG. 3 is a schematic view of the structure A in FIG. 1;
fig. 4 is a perspective view of the device for monitoring the prestress loss of the steel strand according to the present invention.
Illustration of the drawings:
1. an optical fiber sensor; 2. a bellows; 3. a connecting pipe; 4. a connecting wire; 5. a fiber grating demodulator; 6. steel strand wires; 7. a protective groove; 8. a first limit groove; 9. a temperature compensator; 10. reserving a groove; 11. a second limit groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: a device for monitoring the prestress loss of a steel strand comprises a corrugated pipe 2, a plurality of protective grooves 7 with the same size are arranged in the corrugated pipe 2 in a penetrating mode, steel strands 6 are arranged in the protective grooves 7 in a penetrating mode, the stability of the steel strands 6 when the steel strands 6 penetrate into the corrugated pipe 2 can be guaranteed through the protective grooves 7, second limiting grooves 11 are arranged in the protective grooves 7 in a penetrating mode, optical fiber sensors 1 are arranged in the second limiting grooves 11, reserved grooves 10 are formed in the other sides of the second limiting grooves 11 in the penetrating mode and penetrate through the protective grooves 7, the steel strands 6 can be measured through the optical fiber sensors 1, a certain space can be reserved when the steel strands 6 penetrate into the corrugated pipe 2 through the reserved grooves 10, and the optical fiber sensors 1 are prevented from being damaged;
a first limiting groove 8 is formed in the other end of the protection groove 7, a temperature compensator 9 is arranged inside the first limiting groove 8, strain measurement caused by temperature can be eliminated through the temperature compensator 9, and the measurement accuracy is guaranteed;
The working principle is as follows: when the device is used, firstly, the temperature compensator 9 is installed in the first limiting groove 8, then the optical fiber sensor 1 is installed in the second limiting groove 11, the connecting wire 4 at one end of the optical fiber sensor 1 is connected with the temperature compensator 9, then the connecting wire 4 at the other end penetrates through the connecting pipe 3 to be connected with the external optical fiber grating demodulator 5, and finally, the steel strand 6 penetrates into the corrugated pipe 2, so that the monitoring work of the prestress loss of the steel strand 6 is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (3)
1. A device for monitoring steel strand prestress loss, includes bellows (2), its characterized in that: a plurality of protection grooves (7) with the same size are arranged in the corrugated pipe (2) in a penetrating mode, steel strands (6) are arranged in the protection grooves (7) in a penetrating mode, second limiting grooves (11) are arranged in the protection grooves (7) in a penetrating mode, and optical fiber sensors (1) are arranged in the second limiting grooves (11);
the other side of the second limiting groove (11) penetrates through the protection groove (7) and is provided with a reserved groove (10) inwards.
2. The device for monitoring the prestress loss of the steel strand according to claim 1, wherein: the other end of the protection groove (7) is provided with a first limiting groove (8), and a temperature compensator (9) is arranged in the first limiting groove (8).
3. The device for monitoring the prestress loss of the steel strand according to claim 1, wherein: the top fixedly connected with connecting pipe (3) of bellows (2), one side of optical fiber sensor (1) is provided with connecting wire (4), the other end of connecting wire (4) runs through connecting pipe (3) and outwards the linear connection has fiber grating demodulator (5) and optical fiber sensor (1) and temperature compensator (9) to carry out the linear connection through connecting wire (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220627695.6U CN217132418U (en) | 2022-03-21 | 2022-03-21 | Device for monitoring prestress loss of steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220627695.6U CN217132418U (en) | 2022-03-21 | 2022-03-21 | Device for monitoring prestress loss of steel strand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217132418U true CN217132418U (en) | 2022-08-05 |
Family
ID=82644710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220627695.6U Expired - Fee Related CN217132418U (en) | 2022-03-21 | 2022-03-21 | Device for monitoring prestress loss of steel strand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217132418U (en) |
-
2022
- 2022-03-21 CN CN202220627695.6U patent/CN217132418U/en not_active Expired - Fee Related
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Legal Events
| 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: 20220805 |