CN210922573U - Fixing device of concrete internal strain gauge - Google Patents
Fixing device of concrete internal strain gauge Download PDFInfo
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- CN210922573U CN210922573U CN201922405158.8U CN201922405158U CN210922573U CN 210922573 U CN210922573 U CN 210922573U CN 201922405158 U CN201922405158 U CN 201922405158U CN 210922573 U CN210922573 U CN 210922573U
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Abstract
The utility model discloses a fixing device of a concrete internal strain gauge, which is arranged in a gap between reinforcing steel bars and comprises a connecting bracket and a fixing bracket, wherein the connecting bracket comprises a vertical rod and a transverse rod, the vertical rod is fixed with the reinforcing steel bars in an overlapping way, and the transverse rod is fixed with the vertical rod in an overlapping way; the fixing support comprises a fixing rod, a fixing plate, a movable plate and a binding assembly, the fixing rod is fixed with the transverse rod in an overlapping mode, the fixing rod is fixed with one side face of the fixing plate, the movable plate is hinged to the fixing rod, one end of the binding assembly is hinged to the fixing plate, the other end of the binding assembly is hinged to the movable plate, and the binding assembly fixes the strain gauge in a clamping space formed between the movable plate and the fixing plate. Above-mentioned fixing device of inside strainometer of concrete fixes in the space between the reinforcing bar through the linking bridge, fixes the strainometer in the centre gripping space that forms between fly leaf and the fixed plate through tying up the subassembly, and the installation is firm, difficult not hard up.
Description
Technical Field
The utility model relates to a strainometer installation field, concretely relates to fixing device of inside strainometer of concrete.
Background
The concrete in the building or structure is deformed under the action of external load, and the deformation is widely distributed on the external surface and the internal part of the concrete. The deformation poses a threat to the overall safety and durability of the building, and it is therefore necessary to measure the overall deformation of the concrete under load. In practice, it is common to apply an electrical resistance strain gauge or arrange a surface strain gauge on the exterior of the concrete, and the stress condition of the whole section is reflected by the surface strain, however, it is obviously unreasonable, especially when the stress distribution is not uniform, and the strain on the internal section of the concrete needs to be measured.
When measuring the internal strain of concrete, the embedded concrete strain gauge is a good choice, and the embedded concrete strain gauge is used for measuring the internal strain of various concrete structures. When the strain gauge is buried, the strain gauge is lightly tied on the structural steel bar according to the required measuring direction (the buried steel beam strain gauge is fixed on the measured steel beam), and then concrete is poured into the strain gauge. The strain monitoring device is suitable for strain monitoring of bridges, tunnels, dams, buildings and various concrete piles. The embedded concrete strain gauge is manufactured according to the tension string principle, the frequency is used as an output signal, the anti-interference capability is strong, and the error generated by long-distance transmission is extremely small; a temperature sensor is arranged in the temperature sensor to correct the temperature of the change caused by the influence of the external temperature; a computing chip is arranged in each sensor, the measured data is converted automatically to directly output physical quantity, and errors of manual conversion are reduced; all components are subjected to strict testing and aging screening, particularly high and low temperature stress relief tests, so that the stability and reliability of the string are enhanced; in addition, three-prevention treatment is adopted to ensure high survival rate in long-term severe environment.
However, the installation of the strain gauge in the concrete has certain difficulties, and the design of the embedded strain gauge is generally that the middle part is a fixed part, so that the purpose is to prevent the two ends of the embedded strain gauge from contacting and interfering with the clamp, which affects the free deformation of the two ends of the embedded strain gauge and cannot accurately measure, and the fixed part of the embedded strain gauge is generally cylindrical and is not easy to be firmly installed, and if the installation is not firm enough, the concrete can cause the embedded strain gauge to be slightly displaced and to be seriously damaged during the vibration process.
In the prior art, researches on a detection method for embedding a strain gauge into concrete are very numerous, and in a specific installation method for embedding the strain gauge into the concrete, the strain gauge is modified into a special shape and is not suitable for a common embedded strain gauge; or the embedded strain gauge is directly embedded, but the embedded strain gauge is displaced when concrete is poured, so that the embedded strain gauge is easily damaged; or simply tied directly to the vertical steel bars with steel wires, but the tying is cumbersome and risks loosening.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the to-be-solved technical problem of the utility model is to bury formula strainometer at concrete internally mounted, make its installation firm.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a fixing device of a concrete internal strain gauge, which is installed in a gap between reinforcing steel bars, comprises:
the connecting support comprises a vertical rod and a transverse rod, the vertical rod is fixedly lapped with the steel bar, and the transverse rod is fixedly lapped with the vertical rod; and
the strain gauge fixing device comprises a fixing support, wherein the fixing support comprises a fixing rod, a fixing plate, a movable plate and a binding assembly, the fixing rod is fixedly connected with the transverse rod in an overlapping mode, the fixing rod is fixed to one side face of the fixing plate, the movable plate is hinged to the fixing rod, one end of the binding assembly is hinged to the fixing plate, the other end of the binding assembly is hinged to the movable plate, and the strain gauge is fixed in a clamping space formed between the movable plate and the fixing plate by the binding assembly.
Above-mentioned fixing device of inside strainometer of concrete fixes in the space between the reinforcing bar through the linking bridge, fixes the strainometer in the centre gripping space that forms between fly leaf and the fixed plate through tying up the subassembly, and the installation is firm, difficult not hard up.
Further, one end of the vertical rod is bent to form a hook. The hook can facilitate the vertical rod to be hung on the steel bar so as to weld and fix the vertical rod and the steel bar together.
Further, the fixed bolster still includes screw rod assembly, screw rod assembly both ends respectively with the fixed plate with the fly leaf is connected, and locates and be close to one side of fixed lever. The screw assembly may compress the fixed and movable plates such that the fixed and movable plates clamp the strain gauge.
Further, the screw rod subassembly includes screw rod, backing plate and nut, the screw rod passes the fixed plate with the fly leaf, the arc wall has all been seted up to the side that the fixed plate with the fly leaf deviates from, the backing plate be equipped with the arcwall face of arc wall looks adaptation, the arcwall face of backing plate can follow in the arc wall the arcwall face slides, the screw rod both ends all are equipped with the nut, the rotating the nut is pressed the backing plate is in order to compress tightly the fixed plate with the fly leaf. The backing plate with the arc-shaped surface can adapt to the change of the included angle between the fixed plate and the movable plate, and the nuts are arranged at two ends of the screw rod, so that the nuts can be conveniently rotated at two ends simultaneously to clamp the fixed plate and the movable plate.
The screw assembly comprises a screw, a base plate and a nut, the two ends of the screw are respectively a hinged end and a free end, the hinged end of the screw is hinged with the fixed plate, the free end of the screw penetrates through the movable plate, and an arc-shaped groove is formed in the side surface of the movable plate close to the free end of the screw; or the hinged end of the screw rod is hinged to the movable plate, the free end of the screw rod penetrates through the fixed plate, an arc-shaped groove is formed in the side face, close to the free end of the screw rod, of the fixed plate, the backing plate is provided with an arc-shaped face matched with the arc-shaped groove, the arc-shaped face of the backing plate can slide along the arc-shaped face in the arc-shaped groove, and the nut presses the fixed plate and the movable plate tightly through the backing plate. The backing plate with the arc-shaped surface can adapt to the change of the included angle between the fixed plate and the movable plate.
Furthermore, the side that the fly leaf is relative with the fixed plate all is equipped with the sawtooth, the sawtooth extends along the length direction of fixed bar. Serrations are provided to increase the coefficient of friction of the clamping surfaces.
Furthermore, the tightening assembly comprises a steel belt and a locking head, two ends of the steel belt are respectively a hinged end and a free end, the hinged end of the steel belt is hinged with the fixed plate, and the free end of the steel belt is inserted into the locking head hinged with the movable plate; or the hinged end of the steel belt is hinged with the movable plate, and the free end of the steel belt is inserted into the locking head hinged with the fixed plate. The binding component can bind the strain gauge in a clamping space formed between the movable plate and the fixed plate more firmly.
Further, the locking head includes shell and actuating lever, be equipped with the confession on the shell the free end male jack of steel band, the actuating lever with the shell rotates to be connected, be equipped with the drive screw thread on the actuating lever, the even interval of free end of steel band seted up with a plurality of locking grooves of drive screw thread looks adaptation, the actuating lever is rotatory in order to drive the steel band motion. The driving screw thread is matched with the locking groove, so that the movement of the steel belt has a self-locking function, and the strain gauge is bound more firmly without loosening.
Furthermore, the end face of one end of the driving rod is provided with a driving groove. The driving groove can be a straight groove, a cross groove or an inner hexagonal groove, and the like, so that the driving rod can be conveniently rotated.
Furthermore, holes are formed in the fixed plate and the movable plate, so that concrete can enter a clamping space formed between the fixed plate and the movable plate, and the strain gauge can be wrapped by the concrete. The strainometer is wrapped by the concrete more fully, does not have unsettled clearance around making the strainometer as far as possible, is favorable to the strainometer to be even at the inside circumference atress of concrete, also makes the measurement of strainometer more accurate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. by adopting the fixing device for the strain gauge in the concrete, the movable plate and the fixed plate are clamped through the screw assembly, and the strain gauge is fixed in a clamping space formed between the movable plate and the fixed plate through the binding assembly, so that the fixing device is firm to mount and is not easy to loosen.
2. The included angle between the movable plate and the fixed plate is adjusted and clamped through the screw rod assembly and the binding assembly, so that the strain gauges with different specifications and sizes can be adapted, and the movable plate and the fixed plate can be further clamped through the screw rod assembly.
3. The whole mechanism is simple and reliable in structure and high in applicability.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a cross-sectional view a-a of fig. 1 of the present invention;
fig. 4 is a cross-sectional view taken along line B-B of fig. 2 in accordance with the present invention;
fig. 5 is a schematic view of a locking head of the present invention;
FIG. 6 is a schematic view of different installation methods of the screw rod of the present invention;
fig. 7 is a schematic view of different installation modes of the tightening assembly of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 simplicity of description, and do not indicate or imply that the referenced components or structures must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.
Referring to fig. 1, the fixing device for a strain gauge in concrete according to the present embodiment is installed in a gap between reinforcing bars 100, and includes: connecting bracket 1 and fixed bolster 2.
The connecting bracket 1 comprises a vertical rod 11 and a transverse rod 12, wherein the vertical rod 11 is fixedly lapped with the steel bar 100, and the transverse rod 12 is fixedly lapped with the vertical rod 11. Specifically, at least two vertical rods 11 and at least two transverse rods 12 are welded to form a shape like a Chinese character 'jing', two ends of each transverse rod 12 are fixed on the two vertical rods 11 respectively, and one end of each vertical rod 11 is bent to form a hook. The hook can facilitate the vertical rod 11 to be hung on the steel bar 100 so as to weld and fix the vertical rod 11 and the steel bar 100 together. In the specific embodiment, the bent ends of all the vertical rods 11 are firstly hung on the steel bars 100, the vertical rods 11 are arranged at intervals and are firmly welded with the steel bars 100, and then the transverse rods 12 are lapped on the vertical rods 11 at intervals and are firmly welded with the vertical rods 11.
Referring to fig. 2 and 3, the fixing bracket 2 includes a fixing rod 21, a fixing plate 22, a movable plate 23 and a binding assembly 24, the fixing rod 21 is fixed to the transverse rod 12 in an overlapping manner, the fixing rod 21 is fixed to one side of the fixing plate 22, the movable plate 23 is hinged to the fixing rod 21, one end of the binding assembly 24 is hinged to the fixing plate 22, the other end of the binding assembly is hinged to the movable plate 23, and the binding assembly 24 fixes the strain gauge 3 in a clamping space formed between the movable plate 23 and the fixing plate 22.
In particular, the amount of the solvent to be used,
one end of the fixed rod 21 is bent to form a hook, and the hook can facilitate the fixed rod 21 to be hung on the transverse rod 12 of the connecting bracket 1 so as to weld and fix the fixed rod 21 and the transverse rod 12 together.
Referring to fig. 4, the lengths of the movable plate 23 and the fixed plate 22 along the length direction of the fixed rod 21 are equal, and the length of the middle fixed portion of the strain gauge 3 is also equal, so that the free deformation positions of the two ends of the strain gauge 3 are prevented from contacting the movable plate 23 or the fixed plate 22, and the deformation is prevented. The side surface of the fixed plate 22 connected with the fixed rod 21 is only welded with the upper and lower parts of the fixed rod 21, and the middle part is left free to allow a space for the movable plate 23 to hinge. Specifically, the fixed plate 22 and the movable plate 23 are provided with holes 4a, so that concrete can enter a clamping space formed between the fixed plate 22 and the movable plate 23, and the strain gauge 3 can be wrapped by the concrete. The strainometer 3 is wrapped up by the concrete more fully, makes the unsettled clearance not have around the strainometer 3 as far as possible, is favorable to strainometer 3 to be even at the inside circumference atress of concrete, also makes strainometer 3's measurement more accurate. In practice, the holes 4a formed on the fixed plate 22 and the movable plate 23 should be as large as possible so that concrete can enter into the space of the included angle formed by the fixed plate 22 and the movable plate 23.
The movable plate 23 is provided with saw teeth 25 on the side opposite to the fixed plate 22, and the saw teeth 25 extend along the length direction of the fixed rod 21. The serrations 25 are provided to increase the coefficient of friction of the clamping surfaces.
Referring to fig. 7, the tightening assembly 24 includes a steel band 241 and a locking head 242, where two ends of the steel band 241 are a hinged end and a free end, respectively.
In one embodiment, the hinged end of the steel belt 241 is hinged to the fixed plate 22, and the free end of the steel belt 241 is inserted into the locking head 242 hinged to the movable plate 23;
in one embodiment, the hinged end of the steel belt 241 is hinged to the movable plate 23, and the free end of the steel belt 241 is inserted into the locking head 242 hinged to the fixed plate 22.
The binding assembly 24 can bind the strain gauge 3 more firmly in the clamping space formed between the movable plate 23 and the fixed plate 22. In this embodiment, two groups of tightening assemblies 24 are arranged along the length direction of the fixing rod 21, so that the tightening reliability is improved.
Referring to fig. 5, the locking head 242 includes a housing 2421 and a driving rod 2422, the housing 2421 is provided with a jack into which a free end of the steel belt 241 is inserted, the driving rod 2422 is rotatably connected to the housing 2421, the driving rod 2422 is provided with a driving thread, a plurality of locking grooves 2411 matched with the driving thread are uniformly formed at intervals at the free end of the steel belt 241, and the driving rod 2422 rotates to drive the steel belt 241 to move. The driving screw thread is matched with the locking groove 2411, so that the movement of the steel belt 241 has a self-locking function, and the strain gauge 3 is bound more firmly and cannot be loosened. The end surface of one end of the driving rod 2422 may be further provided with a driving groove. The driving groove may be a straight groove, a cross groove, or an inner hexagonal groove, etc., which facilitates rotation of the driving rod 2422. In this embodiment, one end of the driving rod 2422 is provided with a circular truncated cone with a diameter larger than that of the driving rod 2422, and the circular truncated cone is provided with a driving groove.
Referring to fig. 6, in order to further fix the strain gauge 3, a screw assembly 26 may be further disposed to clamp the fixed plate 22 and the movable plate 23, and two ends of the screw assembly 26 are respectively connected to the fixed plate 22 and the movable plate 23 and are disposed at a side close to the fixed rod 21. The screw assembly 26 may compress the fixed plate 22 and the movable plate 23 such that the fixed plate 22 and the movable plate 23 clamp the strain gage 3. In this embodiment, two sets of screw assemblies 26 are arranged along the length direction of the fixed rod 21, so as to improve the reliability of clamping the fixed plate 22 and the movable plate 23.
Referring to figures 3 and 6 of the drawings,
in an embodiment, the screw assembly 26 includes a screw 261, a backing plate 262 and a nut 263, the screw 261 penetrates the fixed plate 22 and the movable plate 23, the arc-shaped groove 2a is respectively opened on the side where the fixed plate 22 and the movable plate 23 deviate from each other, the backing plate 262 is provided with an arc-shaped surface adapted to the arc-shaped groove 2a, the arc-shaped surface of the backing plate 262 can slide along the arc-shaped surface in the arc-shaped groove 2a, the nuts 263 are respectively arranged at two ends of the screw 261, and the rotating nut 263 presses the backing plate 262 to compress the fixed plate 22 and the. The pad 262 with the arc-shaped surface can adapt to the change of the included angle between the fixed plate 22 and the movable plate 23, and the nuts 263 are respectively arranged at two ends of the screw 261 to facilitate the simultaneous rotation of the nuts 263 at two ends to clamp the fixed plate 22 and the movable plate 23. Note that the fixed plate 22 and the movable plate 23 are provided with holes large enough or tapered holes to ensure that the screw 261 does not interfere with the surrounding hole walls when the movable plate 23 rotates.
In one embodiment, the screw assembly 26 includes a screw 261, a backing plate 262 and a nut 263, two ends of the screw 261 are respectively a hinged end and a free end, the hinged end of the screw 261 is hinged to the fixed plate 22, the free end of the screw 261 passes through the movable plate 23, and an arc-shaped groove 2a is formed in a side surface of the movable plate 23 close to the free end of the screw 261; or the hinged end of the screw 261 is hinged to the movable plate 23, the free end of the screw 261 penetrates through the fixed plate 22, the side face, close to the free end of the screw 261, of the fixed plate 22 is provided with an arc-shaped groove 2a, the backing plate 262 is provided with an arc-shaped face matched with the arc-shaped groove 2a, the arc-shaped face of the backing plate 262 can slide along the arc-shaped face in the arc-shaped groove 2a, and the nut 263 compresses the fixed plate 22 and the movable plate 23 through the backing plate 262. The arcuate pad 262 accommodates changes in the angle between the stationary plate 22 and the movable plate 23. Note that the fixed plate 22 or the movable plate 23 is provided with a hole large enough or a tapered hole to ensure that the screw 261 does not interfere with the surrounding hole wall when the movable plate 23 rotates.
Referring to fig. 1 to 7, the operation of the fixing device for the internal strain gauge of concrete includes:
the bent ends of all the vertical rods 11 are firstly hung on the steel bars 100, and the vertical rods 11 are arranged at intervals and are firmly welded with the steel bars 100; then, the transverse rods 12 are lapped on the vertical rods 11 at intervals and are firmly welded with the vertical rods 11; then hanging the bent end of the fixed rod 21 on the transverse rod 12 and firmly welding the two ends of the fixed rod 21 with the transverse rod 12; loosening the nut 263 in the screw assembly 26 and the steel belt 241 in the binding assembly 24 to make the included angle between the movable plate 23 and the fixed plate 22 large enough to accommodate the lower strain gauge 3 and ensure that the middle body part of the strain gauge 3 is clamped in the saw teeth 25 on the opposite surface of the movable plate 23 and the fixed plate 22, and also ensuring that a part of the cambered surface of the middle body part of the strain gauge 3 is exposed out of the width of the movable plate 23 and the fixed plate 22 to make the steel belt 241 bound on the cambered surface; then the nut 263 in the screw assembly 26 is tightened to clamp the movable plate 23 to the fixed plate 22, and the driving rod 2422 in the binding assembly 24 is rotated to tightly bind the steel band 241 to the arc surface of the middle body portion of the strain gage 3.
In the fixing device for the strain gauge in the concrete, the movable plate 23 and the fixed plate 22 are clamped by the screw assembly 26, and the strain gauge 3 is fixed in a clamping space formed between the movable plate 23 and the fixed plate 22 by the binding assembly 24, so that the fixing device is firmly installed and is not easy to loosen; the included angle between the movable plate 23 and the fixed plate 22 is adjusted and clamped through the screw assembly 26 and the binding assembly 24, so that the strain gauges 3 with different specifications and sizes can be adapted; the mechanism has simple and reliable structure and strong applicability.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. A fixing device for a concrete internal strain gauge, which is installed in a gap between reinforcing steel bars, is characterized by comprising:
the connecting support comprises a vertical rod and a transverse rod, the vertical rod is fixedly lapped with the steel bar, and the transverse rod is fixedly lapped with the vertical rod; and
the strain gauge fixing device comprises a fixing support, wherein the fixing support comprises a fixing rod, a fixing plate, a movable plate and a binding assembly, the fixing rod is fixedly connected with the transverse rod in an overlapping mode, the fixing rod is fixed to one side face of the fixing plate, the movable plate is hinged to the fixing rod, one end of the binding assembly is hinged to the fixing plate, the other end of the binding assembly is hinged to the movable plate, and the strain gauge is fixed in a clamping space formed between the movable plate and the fixing plate by the binding assembly.
2. The fixing device for the internal strain gauge of concrete according to claim 1, wherein one end of the vertical rod is bent to form a hook.
3. The fixing device for the internal strain gauge of concrete as claimed in claim 1, wherein the fixing bracket further comprises a screw assembly, and two ends of the screw assembly are respectively connected with the fixing plate and the movable plate and are arranged at one side close to the fixing rod.
4. The fixing device for the internal strain gauge of concrete according to claim 3, wherein the screw assembly comprises a screw, a backing plate and a nut, the screw penetrates through the fixed plate and the movable plate, arc-shaped grooves are formed in the side faces, away from the fixed plate and the movable plate, of the fixed plate, the backing plate is provided with arc-shaped faces matched with the arc-shaped grooves, the arc-shaped faces of the backing plate can slide in the arc-shaped grooves along the arc-shaped faces, the nuts are arranged at the two ends of the screw, and the nuts are rotated to press against the backing plate so as to press the fixed plate and the movable plate tightly.
5. The fixing device for the concrete internal strain gauge according to claim 3, wherein the screw assembly comprises a screw, a backing plate and a nut, the two ends of the screw are respectively a hinged end and a free end,
the hinged end of the screw rod is hinged with the fixed plate, the free end of the screw rod penetrates through the movable plate, and an arc-shaped groove is formed in the side face, close to the free end of the screw rod, of the movable plate; or
The hinged end of the screw rod is hinged with the movable plate, the free end of the screw rod penetrates through the fixed plate, the side surface of the fixed plate, which is close to the free end of the screw rod, is provided with an arc-shaped groove,
the backing plate is provided with an arc-shaped surface matched with the arc-shaped groove, the arc-shaped surface of the backing plate can slide along the arc-shaped surface in the arc-shaped groove, and the nut compresses the fixed plate and the movable plate through the backing plate.
6. The fixing device for the internal strain gauge of concrete as claimed in claim 1, wherein the side of the movable plate opposite to the fixed plate is provided with saw teeth, and the saw teeth extend along the length direction of the fixed plate.
7. The fixing device for the internal strain gauge of concrete according to claim 1, wherein the binding component comprises a steel belt and a locking head, the two ends of the steel belt are respectively a hinged end and a free end,
the hinged end of the steel belt is hinged with the fixed plate, and the free end of the steel belt is inserted into the locking head hinged with the movable plate; or
The hinged end of the steel belt is hinged to the movable plate, and the free end of the steel belt is inserted into the locking head hinged to the fixed plate.
8. The fixing device for the internal strain gauge of concrete according to claim 7, wherein the locking head comprises a housing and a driving rod, the housing is provided with a jack into which a free end of the steel strip is inserted, the driving rod is rotatably connected with the housing, the driving rod is provided with a driving thread, the free end of the steel strip is provided with a plurality of locking grooves matched with the driving thread at regular intervals, and the driving rod rotates to drive the steel strip to move.
9. The apparatus for fixing the internal strain gauge of concrete according to claim 8, wherein the end face of one end of the driving rod is provided with a driving groove.
10. The fixing device for the internal strain gauge of concrete as claimed in claim 1, wherein the fixing plate and the movable plate are provided with holes so that concrete can enter a clamping space formed between the fixing plate and the movable plate, and the strain gauge can be wrapped by the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405158.8U CN210922573U (en) | 2019-12-27 | 2019-12-27 | Fixing device of concrete internal strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405158.8U CN210922573U (en) | 2019-12-27 | 2019-12-27 | Fixing device of concrete internal strain gauge |
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| Publication Number | Publication Date |
|---|---|
| CN210922573U true CN210922573U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922405158.8U Expired - Fee Related CN210922573U (en) | 2019-12-27 | 2019-12-27 | Fixing device of concrete internal strain gauge |
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| Country | Link |
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| CN (1) | CN210922573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523279A (en) * | 2021-01-08 | 2021-03-19 | 宿迁市高速铁路建设发展有限公司 | Auxiliary device for installing strain gauge in concrete |
| CN115565343A (en) * | 2022-09-27 | 2023-01-03 | 中交四公局第三工程有限公司 | Early warning monitoring method for karst tunnel structure safety |
-
2019
- 2019-12-27 CN CN201922405158.8U patent/CN210922573U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523279A (en) * | 2021-01-08 | 2021-03-19 | 宿迁市高速铁路建设发展有限公司 | Auxiliary device for installing strain gauge in concrete |
| CN112523279B (en) * | 2021-01-08 | 2022-03-29 | 宿迁市高速铁路建设发展有限公司 | Auxiliary device for installing strain gauge in concrete |
| CN115565343A (en) * | 2022-09-27 | 2023-01-03 | 中交四公局第三工程有限公司 | Early warning monitoring method for karst tunnel structure safety |
| CN115565343B (en) * | 2022-09-27 | 2024-05-03 | 中交雄安建设有限公司 | Early warning and monitoring method for karst tunnel structure safety |
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Granted publication date: 20200703 Termination date: 20201227 |