CN221320699U - Old bridge prestressing force intelligent monitoring structure - Google Patents

Old bridge prestressing force intelligent monitoring structure Download PDF

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Publication number
CN221320699U
CN221320699U CN202322899899.2U CN202322899899U CN221320699U CN 221320699 U CN221320699 U CN 221320699U CN 202322899899 U CN202322899899 U CN 202322899899U CN 221320699 U CN221320699 U CN 221320699U
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China
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plate
anchor
fixedly connected
block
wall
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CN202322899899.2U
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钟建军
谢艺萍
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Hengyang Highway And Bridge Construction Co ltd
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Hengyang Highway And Bridge Construction Co ltd
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Abstract

The utility model relates to the technical field of bridge reinforcement, and discloses an old bridge prestress intelligent monitoring structure which comprises a bridge body, wherein a tensioning anchor plate is fixedly connected to one side of the bottom wall of the bridge body, threaded rods are arranged on the front side and the rear side of the interior of the tensioning anchor plate, fixed blocks are connected to the peripheries of one ends of the threaded rods, far away from the tensioning anchor plate, of the threaded rods in a sliding manner, connecting blocks are fixedly connected to the front part and the rear part of one side, close to the tensioning anchor plate, of the fixed blocks, springs are fixedly connected to the upper part and the lower part, far away from one side wall, of the connecting blocks, in the front side and the rear side, a limiting plate is fixedly connected to one end, close to the front side and the rear side, of the limiting plate, and a guide block is fixedly connected to the side, close to the limiting plate. According to the utility model, under the combined action of the fixing block, the connecting block, the guide block, the spring, the stop lever, the torsion spring and the groove, the jack can be initially limited and kept centered, so that the jack can be conveniently fixed.

Description

Old bridge prestressing force intelligent monitoring structure
Technical Field
The utility model relates to the technical field of bridge reinforcement, in particular to an intelligent monitoring structure for the prestress of an old bridge.
Background
The bridge prestress intelligent detection structure is a prestress reinforcing system prepared by coupling an optical fiber sensor and a carbon fiber plate and then matching an anchor system, the bridge is influenced by load in a long-term operation process to often cause girder deflection to become large, further diseases such as crack expansion and the like are generated, the integral bearing capacity of the structure is insufficient and even dangerous is caused, and the bridge can be reinforced through the prestress reinforcing system, and the health state of the bridge is detected in real time.
Searching, chinese patent bulletin number: CN219218699U, a prestressed carbon fiber board anchor structure for bridge relates to bridge reinforcement technical field, includes: a fixed end anchor plate; the tensioning end anchor plate is provided with a counterforce steel plate, and the counterforce steel plate is provided with a penetrating hole; the first end and the second end of the carbon fiber plate are respectively provided with an anchor, the anchor of the first end of the carbon fiber plate is connected with the fixed end anchor plate, and the anchor of the second end of the carbon fiber plate is positioned at one side of the counterforce steel plate, which is close to the fixed end anchor plate; the tensioning tool is used for pulling an anchorage device at the second end of the carbon fiber plate under the action of the counter-force steel plate so as to realize prestress tensioning of the carbon fiber plate; the fixed end anchor plate and the tensioning end anchor plate are fixed on the bridge to be prestressed tensioned at intervals during use. The utility model can efficiently apply prestress to the bridge, and compared with the existing common bridge prestress tensioning system, the prestress carbon fiber plate tensioning system has high tensioning efficiency and small prestress loss; however, when installing the jack, because lack the limit structure to the jack, consequently need the staff to support the jack to the mounted position earlier and fix again, still need pay attention to simultaneously whether the jack coincides with carbon plate central line position, lead to comparatively trouble to the installation of jack, and efficiency is lower.
Disclosure of utility model
In order to make up for the defects, the utility model provides an intelligent monitoring structure for the prestress of an old bridge, which aims to solve the problems that in the prior art, workers are required to support a jack to an installation position and then fix the jack, and meanwhile, attention is required to be paid to whether the jack coincides with the center line position of a carbon plate, so that the installation of the jack is troublesome and the efficiency is low.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an old bridge prestressing force intelligent monitoring structure, includes the bridge body, bridge body downside is provided with clamping device, bridge body diapire one side fixedly connected with stretch-draw anchor plate, stretch-draw anchor plate inside front and back side all is provided with the threaded rod, stretch-draw anchor plate one end periphery sliding connection has the fixed block is kept away from to the threaded rod, the fixed block is close to stretch-draw anchor plate one side front and back portion equal fixedly connected with connecting block, front and back side keep away from a lateral wall upper and lower part equal fixedly connected with spring in the connecting block, front and back side the spring is close to one end equal fixedly connected with limiting plate mutually, front and back side the limiting plate is close to one side equal fixedly connected with guide block mutually, front and back side limiting plate one end is kept away from to the guide block and all runs through the connecting block and is close to one lateral wall mutually, be provided with spacing subassembly in the fixed block.
Specifically, when the jack to be installed is clamped into the fixing block and between the connecting blocks, the jack can be clamped and centered through the guide block and the spring.
As a further description of the above technical solution:
The clamping device comprises anchor blocks, wherein one side of a bottom wall of a bridge body, far away from a tensioning anchor plate, is fixedly connected with a fixed anchor plate, two sides of the bottom wall of the bridge body are respectively arranged in the tensioning anchor plate and the fixed anchor plate, two sides of the bottom wall of the anchor block are respectively provided with a cavity, two sides of the bottom wall of the anchor block are respectively connected with double-headed screws in a rotating mode, the top ends of the double-headed screws are respectively penetrated through the bottom wall in the cavities, the front sides of the bottom wall of the double-headed screws are respectively provided with a pressing plate in threaded connection with the outer Zhou Jun of the upper end and the lower end of the double-headed screws, the rear sides of the bottom wall of the double-headed screws are respectively provided with a movable plate in threaded connection with the outer Zhou Jun of the upper end and the lower end of the double-headed screws, and the two sides of the bottom wall of the movable plate are respectively provided with uniformly distributed pressing blocks.
Specifically, the pressing plate can be used for preliminarily clamping the carbon fiber plate by rotating the double-headed screw on the front side; the carbon fiber plate can be further clamped through the pressing block by rotating the rear double-head screw; thereby achieving the effects of being convenient for clamp the carbon fiber plate and ensuring the clamping stability.
As a further description of the above technical solution:
The limiting component comprises a groove, the front wall and the rear wall in the fixed block are all seted up to the groove, the front side and the rear side the lower part is all rotated in the groove and is connected with the pivot, the front side and the rear side the end is all rotated around the pivot and is connected at the recess inner wall, the front side and the rear side the equal fixedly connected with pin in pivot middle part periphery, the front side and the rear side the equal fixedly connected with torsional spring of pin both sides wall, a plurality of the equal fixedly connected with in recess inner wall of pin one end is kept away from to the torsional spring, a plurality of the torsional spring all sets up in the pivot periphery.
Specifically, after the jack card is gone into inside the fixed block, the pin can carry out preliminary spacing to the jack, and the staff of being convenient for is fixed the jack subsequently.
As a further description of the above technical solution:
Limiting grooves are formed in two sides of the bottom wall of the bridge body, the upper portions of the anchor blocks are slidably connected in the limiting grooves, through grooves are formed in two side walls of the anchor blocks, carbon fiber plates are arranged in the anchor blocks, uniformly distributed FBG sensors are arranged in the carbon fiber plates, and the FBG sensors are electrically connected with an external FBG monitoring instrument.
Specifically, the limit groove can enable the anchor block to have enough installation space; various information of the bridge can be detected through the FBG sensor, so that the real-time detection of the health state of the bridge is achieved.
As a further description of the above technical solution:
One side of the anchor block is connected in the tensioning anchor plate in a sliding way, and the other side of the anchor block is fixedly connected in the fixed anchor plate.
Specifically, one end of the carbon fiber plate is fixed in the anchor block in the fixed anchor plate, and then the anchor block in the tensioning anchor plate is pulled to slide, so that the carbon fiber plate can be tensioned.
As a further description of the above technical solution:
The front side and the rear side are both in sliding connection with the tensioning anchor plate, the front side and the rear side are both in threaded connection with an anchor block sliding in the tensioning anchor plate, and a locking nut is in threaded connection with the outer Zhou Jun of one end, far away from the tensioning anchor plate, of the threaded rod.
Specifically, when the jack is fixed between the tensioning anchor plate and the fixed block, the jack is started to push the fixed block to move, so that the threaded rod drives the anchor block in the tensioning anchor plate to move, and the carbon fiber plate can be tensioned.
As a further description of the above technical solution:
The front side and the rear side the equal fixedly connected with gag lever post of upper and lower portion of a lateral wall is kept away from in the connecting block, the front side and the rear side the equal sliding connection of one end that the gag lever post is close to mutually is in the limiting plate, a plurality of the spring all sets up in the gag lever post periphery.
Specifically, the limiting plate can be limited through the limiting rod; and can carry out spacing to the spring through the gag lever post, prevent that the spring from bending when compressing.
As a further description of the above technical solution:
The double-end screw rod is characterized in that the top ends of the double-end screw rods are rotationally connected to the inner top wall of the cavity, the pressing plates are slidably connected to the inner wall of the cavity and are attached to the inner wall of the cavity, and the moving plates are slidably connected to the inner wall of the cavity and are attached to the inner wall of the cavity.
Specifically, the rotation stability of the double-end screw can be ensured by limiting the top end of the double-end screw; through spacing clamp plate and movable plate, can prevent that clamp plate and movable plate from appearing rotating.
The utility model has the following beneficial effects:
1. According to the utility model, when the jack is required to be installed, the jack can be initially limited and kept centered under the combined action of the fixing block, the connecting block, the guide block, the spring, the stop lever, the torsion spring and the groove, so that the jack can be conveniently fixed.
2. According to the utility model, the pressing plates can be mutually close by rotating the double-headed screw on the front side, the carbon fiber plates are preliminarily clamped, and then the moving plates are driven to mutually close by rotating the double-headed screw on the rear side, so that the carbon fiber plates are further clamped by the pressing blocks, and the effects of facilitating clamping the carbon fiber plates and ensuring the clamping stability are achieved.
Drawings
FIG. 1 is a perspective view of an intelligent monitoring structure for pre-stressing of an old bridge according to the present utility model;
FIG. 2 is a front cross-sectional view of an intelligent monitoring structure for pre-stressing of an old bridge according to the present utility model;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a side cross-sectional view of an intelligent monitoring structure for pre-stressing of an old bridge according to the present utility model;
FIG. 6 is another side cross-sectional view of an intelligent monitoring structure for pre-stressing of an old bridge according to the present utility model;
Fig. 7 is a bottom partial sectional view of an intelligent monitoring structure for pre-stressing of an old bridge according to the present utility model.
Legend description:
1. A bridge body; 2. a clamping device; 201. a double-ended screw; 202. a pressing plate; 203. a moving plate; 204. a chamber; 205. briquetting; 206. a through groove; 207. an anchor block; 3. stretching the anchor plate; 4. a threaded rod; 5. a fixed block; 6. a carbon fiber plate; 7. fixing the anchor plate; 8. a torsion spring; 9. a limit groove; 10. a connecting block; 11. a limiting plate; 12. a limit rod; 13. a spring; 14. a guide block; 15. a stop lever; 16. a lock nut; 17. a groove; 18. an FBG sensor; 19. a rotating shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, 4 or 6, one embodiment of the present utility model provides: the utility model provides an old bridge prestressing force intelligent monitoring structure, including bridge body 1, bridge body 1 downside is provided with clamping device 2, bridge body 1 diapire one side fixedly connected with stretch-draw anchor plate 3, stretch-draw anchor plate 3 inside front and back side all is provided with threaded rod 4, threaded rod 4 keeps away from stretch-draw anchor plate 3 one end periphery sliding connection has fixed block 5, fixed block 5 is close to stretch-draw anchor plate 3 one side front and back portion all fixedly connected with connecting block 10, the interior phase of front and back side connecting block 10 keeps away from a lateral wall upper and lower part all fixedly connected with spring 13, front and back side spring 13 is close to one end all fixedly connected with limiting plate 11 mutually, front and back side limiting plate 11 is close to one side all fixedly connected with guide block 14 mutually, front and back side guide block 14 is kept away from limiting plate 11 one end all through connecting block 10 and is close to one lateral wall mutually, be provided with spacing subassembly in the fixed block 5; the limiting component comprises a groove 17, front and rear side grooves 17 are formed in the front and rear walls of the fixed block 5, rotary shafts 19 are rotatably connected to the inner lower portions of the front and rear side grooves 17, the front and rear ends of the front and rear side rotary shafts 19 are rotatably connected to the inner walls of the groove 17, stop rods 15 are fixedly connected to the outer peripheries of the middle parts of the front and rear side rotary shafts 19, torsion springs 8 are fixedly connected to the two side walls of the front and rear side stop rods 15, one ends, far away from the stop rods 15, of the torsion springs 8 are fixedly connected to the inner walls of the groove 17, and the torsion springs 8 are arranged on the outer peripheries of the rotary shafts 19;
Specifically, in the actual use process, when the jack needs to be installed, only the jack to be installed needs to be clamped into the fixed block 5 and between the connecting blocks 10; the jack can be contacted with the guide block 14 in the clamping process, and as the contact side of the guide block 14 and the jack is an inclined plane, the guide block 14 is extruded and simultaneously kept away from each other along with the clamping of the jack; when the guide block 14 moves, the spring 13 is extruded, and when the spring 13 is pressed, reverse thrust is provided, so that the guide block 14 is pushed to clamp and center the jack; the jack pushes the stop lever 15 to rotate when being clamped into the fixed block 5, and pulls the torsion spring 8 when the stop lever 15 rotates; when the jack is completely clamped in, the jack can cancel contact with the stop lever 15, and the stop lever 15 is pulled to reset under the action of the torsion spring 8; because the bottom wall of the stop lever 15 is contacted with the bottom wall of the groove 17, the groove 17 can limit the stop lever 15, so that the blocked jack can be limited through the stop lever 15; and then reach the effect that can be preliminary spacing to the jack and keep centering to be convenient for follow-up to fix the jack.
Referring to fig. 1, 3 or 5, the clamping device 2 comprises anchor blocks 207, one side, far away from the tensioning anchor plate 3, of the bottom wall of the bridge body 1 is fixedly connected with a fixed anchor plate 7, the anchor blocks 207 on two sides are arranged in the tensioning anchor plate 3 and the fixed anchor plate 7, cavities 204 are formed in the anchor blocks 207 on two sides, double-headed screws 201 are rotatably connected to the front side and the rear side of the bottom wall of the anchor block 207 on two sides, the top ends of the double-headed screws 201 penetrate through the inner bottom wall of the cavities 204, pressing plates 202 are connected to the outer Zhou Jun of the upper end and the lower end of the front double-headed screw 201 in a threaded manner, moving plates 203 are connected to the outer Zhou Jun of the upper end and the lower end of the rear double-headed screw 201 in a threaded manner, and pressing blocks 205 which are uniformly distributed are fixedly connected to the two sides of the bottom wall of the moving plates 203 on two sides;
Specifically, the platen 202 driving the peripheral connection can be moved by rotating the double-headed screw 201 on the front side; since the pressing plate 202 is limited by the cavity 204, the pressing plates are mutually close along with the rotation of the double-headed screw 201, so that the passing carbon fiber plate 6 can be clamped by the pressing plate 202; then the rear double-end screw 201 is rotated, and the moving plate 203 with the peripheral connection can be driven to move by the rear double-end screw 201; when the upper and lower moving plates 203 are close to each other, the fixed pressing blocks 205 are driven to be close to each other, so that the carbon fiber plates 6 are further clamped by the plurality of pressing blocks 205; thereby achieving the effects of facilitating the clamping of the carbon fiber plate 6 and ensuring the clamping stability.
Referring to fig. 2 or 3, limiting grooves 9 are formed on two sides of the bottom wall of the bridge body 1, the upper parts of anchor blocks 207 are slidably connected in the limiting grooves 9, through grooves 206 are formed on two side walls of the anchor blocks 207 on two sides, carbon fiber plates 6 are arranged in the anchor blocks 207 on two sides, uniformly distributed FBG sensors 18 are arranged in the carbon fiber plates 6, and a plurality of FBG sensors 18 are electrically connected with an external FBG monitoring instrument;
Specifically, the anchor block 207 can have enough installation space by arranging the limit groove 9, so that the carbon fiber plate 6 can be contacted with the bottom surface of the bridge; the carbon fiber plate 6 can be installed and fixed by penetrating through the through groove 206; the FBG sensor 18 is arranged in the carbon fiber plate 6 to detect various information of the bridge, and the detected information is transmitted to the FBG detection instrument and then transmitted to the using terminal of the staff, so that the real-time detection of the health state of the bridge is achieved.
Referring to fig. 1 or 2, one side anchor block 207 is slidably connected in the tension anchor plate 3, and the other side anchor block 207 is fixedly connected in the fixed anchor plate 7;
Specifically, by fixing one end of the carbon fiber plate 6 in the anchor block 207 in the fixed anchor plate 7 and then pulling the anchor block 207 in the tensioning anchor plate 3 to slide, the carbon fiber plate 6 can be tensioned.
Referring to fig. 1, the front and rear threaded rods 4 are both in sliding connection with the tensioning anchor plate 3, the front and rear threaded rods 4 are both in threaded connection with anchor blocks 207 sliding in the tensioning anchor plate 3, and a lock nut 16 is in threaded connection with the outer Zhou Jun of one end of the front and rear threaded rods 4, which is far away from the tensioning anchor plate 3;
Specifically, when the jack is fixed between the tensioning anchor plate 3 and the fixed block 5, the fixed block 5 can be locked and fixed through the locking nut 16, then the jack is started to push the fixed block 5 to move, the threaded rod 4 can be driven to move when the fixed block 5 moves, the connected anchor block 207 can be driven to move when the threaded rod 4 moves, and the carbon fiber plate 6 can be tensioned through the movement of the anchor block 207 in the tensioning anchor plate 3.
Referring to fig. 6, the upper and lower parts of the inner phase of the front and rear connecting blocks 10 far away from one side wall are fixedly connected with limiting rods 12, one ends of the front and rear limiting rods 12 close to each other are slidably connected in limiting plates 11, and a plurality of springs 13 are arranged on the periphery of the limiting rods 12;
Specifically, the limiting rod 12 can limit the limiting plate 11, so that the moving stability of the limiting plate 11 is ensured; and the spring 13 can be limited through the limiting rod 12, so that the spring 13 is prevented from bending when being pressed.
Referring to fig. 5 or fig. 7, the top ends of the plurality of double-ended screws 201 are rotatably connected to the inner top wall of the chamber 204, and the plurality of pressing plates 202 are slidably connected to the inner wall of the chamber 204 and are attached to the inner wall of the chamber 204;
Specifically, by limiting the top end of the double-ended screw 201, the stability of the rotation of the double-ended screw 201 can be ensured; by limiting the pressing plate 202 and the moving plate 203, the pressing plate 202 and the moving plate 203 can be prevented from rotating.
Working principle: in the actual use process, when the jack is required to be installed, the jack to be installed is only required to be clamped into the fixed block 5 and between the connecting blocks 10; the jack can press the guide block 14 in the process of clamping in; when the guide block 14 is far away, the spring 13 is extruded, so that the guide block 14 can be pushed to clamp and center the jack under the action of the spring 13; meanwhile, the jack pushes the stop lever 15 to rotate when being clamped into the fixed block 5; when the jack is completely clamped in, the stop lever 15 is pulled to reset under the action of the torsion spring 8 because the torsion spring 8 is pulled when the stop lever 15 rotates; the stop lever 15 can be limited by the groove 17, so that the stop lever 15 can limit the jack; the jack can be initially limited and kept centered, so that the jack can be conveniently fixed by subsequent staff;
In addition, the driving press plates 202 can be mutually close by rotating the double-headed screw 201 on the front side, so that the carbon fiber plate 6 can be preliminarily clamped by the press plates 202; by rotating the rear side double-headed screw 201, the moving plate 203 and the pressing block 205 can be driven to approach each other, so that the carbon fiber plate 6 is further clamped by the plurality of pressing blocks 205; thereby achieving the effects of facilitating the clamping of the carbon fiber plate 6 and ensuring the clamping stability.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides an old bridge prestressing force intelligent monitoring structure, includes the bridge body (1), its characterized in that: the utility model discloses a bridge body (1), including bridge body (1), connecting block (5), connecting block (10), front and back side all fixedly connected with spring (13) of lower part about keeping away from a lateral wall in connecting block (10), front and back side spring (13) are close to one end all fixedly connected with limiting plate (11) mutually, front and back side limiting plate (11) are close to one side all fixedly connected with guide block (14) mutually, front and back side limiting plate (11) one end all runs through connecting block (10) and is close to a lateral wall in guide block (14), be provided with spacing subassembly in fixed block (5).
2. The old bridge prestress intelligent monitoring structure according to claim 1, wherein: clamping device (2) are including anchor block (207), fixed anchor plate (7) of stretch-draw anchor plate (3) one side fixedly connected with is kept away from to bridge body (1) diapire, both sides anchor block (207) all set up in stretch-draw anchor plate (3) and fixed anchor plate (7), both sides cavity (204) have all been seted up to anchor block (207) inside, both sides all rotate around anchor block (207) diapire side and be connected with double-end screw rod (201), a plurality of double-end screw rod (201) top all runs through diapire in cavity (204), the front side outer Zhou Jun threaded connection of upper and lower ends of double-end screw rod (201) has clamp plate (202), the rear side outer Zhou Jun threaded connection has movable plate (203) on double-end screw rod (201), both sides equal fixedly connected with evenly distributed's briquetting (205) on movable plate (203) diapire both sides.
3. The old bridge prestress intelligent monitoring structure according to claim 1, wherein: limiting component includes recess (17), front and back side wall around recess (17) are all offered in fixed block (5), front and back side lower part all rotates in recess (17) and is connected with pivot (19), front and back side pivot (19) front and back end all rotate and connect at recess (17) inner wall, front and back side equal fixedly connected with pin (15) in pivot (19) middle part periphery, front and back side equal fixedly connected with torsional spring (8) of pin (15) both sides wall, a plurality of torsional spring (8) keep away from pin (15) one end equal fixedly connected with at recess (17) inner wall, a plurality of torsional spring (8) all set up in pivot (19) periphery.
4. The old bridge prestress intelligent monitoring structure according to claim 2, wherein: limiting grooves (9) are formed in two sides of the bottom wall of the bridge body (1), the upper portions of the anchor blocks (207) are slidably connected in the limiting grooves (9), through grooves (206) are formed in two side walls of the anchor blocks (207), carbon fiber plates (6) are arranged in the anchor blocks (207), uniformly distributed FBG sensors (18) are arranged in the carbon fiber plates (6), and the FBG sensors (18) are electrically connected with an external FBG monitoring instrument.
5. The old bridge prestress intelligent monitoring structure according to claim 2, wherein: one side of the anchor block (207) is connected in the tensioning anchor plate (3) in a sliding way, and the other side of the anchor block (207) is fixedly connected in the fixed anchor plate (7).
6. The old bridge prestress intelligent monitoring structure according to claim 1, wherein: the front side and the rear side are respectively connected with the tensioning anchor plate (3) in a sliding mode, the front side and the rear side are respectively connected with an anchor block (207) in the tensioning anchor plate (3) in a sliding mode, and the front side and the rear side are respectively connected with a locking nut (16) in a threaded mode, wherein the locking nut is connected with one end, far away from the tensioning anchor plate (3), of the threaded rod (4) in an external Zhou Jun threaded mode.
7. The old bridge prestress intelligent monitoring structure according to claim 1, wherein: the front side and the rear side the connecting block (10) are respectively fixedly connected with a limiting rod (12) at the upper and lower parts of the inner phase far away from one side wall, the front side and the rear side the limiting rods (12) are respectively connected in the limiting plate (11) in a sliding way at one ends close to each other, and a plurality of springs (13) are respectively arranged at the periphery of the limiting rods (12).
8. The old bridge prestress intelligent monitoring structure according to claim 2, wherein: a plurality of double-end screw rods (201) top all rotate and connect at cavity (204) inner roof, a plurality of clamp plate (202) all sliding connection at cavity (204) inner wall and with cavity (204) inner wall laminating, a plurality of movable plate (203) all sliding connection at cavity (204) inner wall and with cavity (204) inner wall laminating.
CN202322899899.2U 2023-10-27 2023-10-27 Old bridge prestressing force intelligent monitoring structure Active CN221320699U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322899899.2U CN221320699U (en) 2023-10-27 2023-10-27 Old bridge prestressing force intelligent monitoring structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322899899.2U CN221320699U (en) 2023-10-27 2023-10-27 Old bridge prestressing force intelligent monitoring structure

Publications (1)

Publication Number Publication Date
CN221320699U true CN221320699U (en) 2024-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322899899.2U Active CN221320699U (en) 2023-10-27 2023-10-27 Old bridge prestressing force intelligent monitoring structure

Country Status (1)

Country Link
CN (1) CN221320699U (en)

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