CN219810554U - Bridge stress monitoring device - Google Patents
Bridge stress monitoring device Download PDFInfo
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- CN219810554U CN219810554U CN202320688796.9U CN202320688796U CN219810554U CN 219810554 U CN219810554 U CN 219810554U CN 202320688796 U CN202320688796 U CN 202320688796U CN 219810554 U CN219810554 U CN 219810554U
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- Prior art keywords
- transverse tube
- horizontal tube
- monitoring device
- stress monitoring
- grating sensor
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Abstract
本实用新型公开了一种桥梁应力监测装置，左上横管、右上横管、左下横管、右下横管平行于支架的四个角，左上横管及右上横管的上表面均设置有若干上部钢筋，左下横管及右下横管的下表面均设置有若干下部钢筋，光纤光栅传感器有四根且分别插设于左上横管、右上横管、左下横管、右下横管内，光纤光栅传感器一端设置有跳线接口，光纤光栅传感器位于跳线接口一端还设置有法兰板，法兰板通过螺栓与对应左上横管、右上横管、左下横管、右下横管的端部相连，本实用新型结构合理、简单，支撑性好，便于组装及运输，光纤光栅传感器可直接抽出进行更换，便捷性大大提高，同时可根据不同桥梁内腔的大小，选择合适尺寸的支架，适用范围大大提高。
The utility model discloses a bridge stress monitoring device. The upper left horizontal tube, the upper right horizontal tube, the lower left horizontal tube and the lower right horizontal tube are parallel to the four corners of the bracket. The upper surfaces of the upper left horizontal tube and the upper right horizontal tube are provided with a number of The upper steel bars, the lower surfaces of the left lower horizontal tube and the lower right horizontal tube are provided with a number of lower steel bars. There are four fiber grating sensors and they are respectively inserted into the upper left horizontal tube, the upper right horizontal tube, the lower left horizontal tube and the lower right horizontal tube. The optical fiber One end of the grating sensor is provided with a jumper interface. The fiber grating sensor is located at one end of the jumper interface and is also provided with a flange plate. The flange plate is connected to the ends of the corresponding upper left horizontal tube, upper right horizontal tube, lower left horizontal tube, and lower right horizontal tube through bolts. Connected, this utility model has a reasonable and simple structure, good support, and is easy to assemble and transport. The fiber grating sensor can be directly pulled out for replacement, which greatly improves convenience. At the same time, a bracket of appropriate size can be selected according to the size of the inner cavity of different bridges, which is suitable for The range is greatly improved.
Description
Technical Field
The utility model relates to the technical field of bridge stress monitoring, in particular to a bridge stress monitoring device.
Background
Bridge is a structure which is generally erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like. In order to adapt to the traffic industry of modern high-speed development, bridges are also extended to span mountain stream, poor geology or buildings which are erected to meet other traffic requirements and are more convenient to pass, and in order to reduce weight, the interior of the bridge is generally of a hollow structure.
The fiber bragg grating sensor is the fiber bragg grating sensor which is most widely applied in the engineering field and is the most mature in technology. The strain directly influences the wavelength drift of the fiber bragg grating, under the condition that the working environment is better or the structure to be detected requires a small sensor, people directly paste the bare fiber bragg grating on the surface of the structure to be detected or bury the bare fiber bragg grating in the structure, the same traditional mode of bridge monitoring is also directly embedded in the bridge, but the problem that the bridge is inconvenient to replace exists, and therefore, an improved technology is needed to solve the problem in the prior art.
Disclosure of Invention
The utility model aims to provide a bridge stress monitoring device which has good support, simple structure and convenient assembly and transportation, and the fiber bragg grating sensor can be directly pulled out for replacement, so that the convenience is greatly improved, and the problems in the background technology are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a bridge stress monitoring device comprises a bracket and a fiber bragg grating sensor;
the support comprises an upper left transverse tube, an upper right transverse tube, a lower left transverse tube, a lower right transverse tube, upright rods, transverse rods and inclined struts, wherein the upper left transverse tube, the upper right transverse tube, the lower left transverse tube and the lower right transverse tube are parallel to four corners of the support, the upper left transverse tube and the upper right transverse tube, the lower left transverse tube and the lower right transverse tube are all connected through a plurality of transverse rods, the upper left transverse tube and the lower left transverse tube, the upper right transverse tube and the lower right transverse tube are all connected through a plurality of upright rods, two inclined struts which are mutually intersected are also arranged between two adjacent upright rods, a plurality of upper reinforcing steel bars are arranged on the upper surfaces of the upper left transverse tube and the upper right transverse tube, and a plurality of lower reinforcing steel bars are arranged on the lower surfaces of the upper left transverse tube and the lower right transverse tube;
the fiber bragg grating sensors are four and are respectively inserted into the left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube, one end of each fiber bragg grating sensor is provided with a jumper wire interface, one end of each fiber bragg grating sensor, which is positioned at the jumper wire interface, is also provided with a flange plate, and the flange plate is connected with the end parts of the corresponding left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube through bolts.
Preferably, the bridge stress monitoring device provided by the utility model, wherein the outer diameter of the fiber grating sensor is consistent with the left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube.
Preferably, the bridge stress monitoring device provided by the utility model is characterized in that the ends of the left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube, which are far away from the jumper wire interface, are provided with the exhaust holes.
Preferably, the bridge stress monitoring device provided by the utility model is characterized in that the cross bars are respectively connected with the left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube in a welding mode.
Preferably, the bridge stress monitoring device provided by the utility model is characterized in that the vertical rods are respectively connected with the left upper transverse tube, the right upper transverse tube, the left lower transverse tube and the right lower transverse tube in a welding mode.
Preferably, the bridge stress monitoring device provided by the utility model is characterized in that the diagonal braces are respectively connected with the left upper transverse pipe, the right upper transverse pipe, the left lower transverse pipe and the right lower transverse pipe in a welding mode.
Preferably, the bridge stress monitoring device provided by the utility model, wherein the fiber grating sensors are all single-mode fibers written with one or more fiber gratings.
Compared with the prior art, the utility model has the beneficial effects that:
the support is good, simple structure, and the equipment and the transportation of being convenient for, fiber bragg grating sensor can directly take out and change, and the convenience improves greatly, and after long-term use, the support also can change, simultaneously owing to adopt pin-connected panel structure, can be according to the size of different bridge inner chambers, selects the support of suitable size, application scope improves greatly.
Drawings
FIG. 1 is a schematic side view of the present utility model;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
FIG. 3 is a schematic top view of the present utility model;
FIG. 4 is a schematic diagram of the relationship between the bridge and the bridge according to the present utility model;
FIG. 5 is a schematic cross-sectional view of the present utility model.
In the figure: the device comprises an upper left transverse tube 1, an upper right transverse tube 2, a lower left transverse tube 3, a lower right transverse tube 4, a vertical rod 5, a cross rod 6, an inclined strut 7, an upper reinforcing steel bar 8, a lower reinforcing steel bar 9, a fiber grating sensor 10, a jumper wire interface 11, a flange plate 12 and an exhaust hole 13.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model;
it should be noted that, in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: the bridge stress monitoring device comprises a bracket and a fiber bragg grating sensor 10;
the support comprises a left upper transverse tube 1, a right upper transverse tube 2, a left lower transverse tube 3, a right lower transverse tube 4, vertical rods 5, transverse rods 6 and inclined struts 7, wherein the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 are parallel to the four corners of the support, the left upper transverse tube 1 and the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 are all connected with each other through a plurality of transverse rods 6, the transverse rods 6 are respectively connected with the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 in a welding manner, the left upper transverse tube 1 is connected with the left lower transverse tube 3, the right upper transverse tube 2 is connected with the right lower transverse tube 4 through a plurality of vertical rods 5, the vertical rods 5 are respectively connected with the left upper transverse tube 1, the right upper transverse tube 2, the right lower transverse tube 3 and the right lower transverse tube 4 in a welding manner, two inclined struts 7 which are mutually crossed are also arranged between the adjacent two vertical rods 5, the inclined struts 7 are respectively connected with the left upper transverse tube 1, the right upper transverse tube 3, the right lower transverse tube 3 and the left upper transverse tube 4 and the left lower transverse tube 4 in a welding manner, the left upper transverse tube 4 are respectively, and a plurality of steel bars are respectively connected with the left upper transverse tube 4 and the right lower transverse tube 4 in a certain horizontal tube 4;
the fiber bragg grating sensor 10 is a single-mode fiber in which one or more fiber bragg gratings are written, the fiber bragg grating sensor 10 is provided with four fiber bragg gratings and is respectively inserted into the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4, one end of the fiber bragg grating sensor 10 is provided with a jumper wire interface 11, one end of the fiber bragg grating sensor 10, which is positioned at the jumper wire interface 11, is also provided with a flange plate 12, the flange plate 12 is connected with the end parts of the corresponding left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 through bolts, the fiber bragg grating sensor 10 is convenient to detach and replace through the bolts, the outer diameter of the fiber bragg grating sensor 10 is consistent with the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 so as to ensure the stability of the fiber bragg grating sensor 10, thereby ensuring the accuracy of detection, the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 are far away from one end of the interface 11 and are provided with an exhaust hole 13, and the exhaust hole 13 is used for exhausting the fiber bragg grating sensor 10.
The installation method and the use principle are as follows: firstly, the fiber grating sensor 10 is respectively inserted into the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 and is fixed through the flange plate 12 and bolts, and then the vertical rod 5 diagonal bracing 7 with proper length is manufactured according to the height of the inner cavity of the bridge to be monitored. The left upper transverse tube 1 is connected with the right upper transverse tube 2 through a transverse rod 6, the left lower transverse tube 3 is connected with the right lower transverse tube 4 through the transverse rod 6, the vertical rods 5 are connected through inclined struts 7, four spliced assemblies (an assembly of the left upper transverse tube 1, the right upper transverse tube 2 and the transverse rod 6, an assembly of the left lower transverse tube 3, the right lower transverse tube 4 and the transverse rod 6, two assemblies of the vertical rods 5 and the inclined struts 7) are obtained, and then the bridge is transported to the bridge position. After splicing two bridges, moving the four assemblies into the inner cavity of the bridge node, firstly inserting lower reinforcing steel bars 9 of a left lower transverse tube 3 and a right lower transverse tube 4 into a reserved hole at the lower part of the bridge inner cavity, then inserting upper reinforcing steel bars 8 of a left upper transverse tube 1 and a right upper transverse tube 2 into a reserved hole at the upper part of the bridge inner cavity, and then welding the bottoms of the two assemblies formed by upright posts 5 and diagonal braces 7 with the upper surfaces of the left lower transverse tube 3 and the right lower transverse tube 4 respectively, wherein the tops of the assemblies are welded with the lower surfaces of the left upper transverse tube 1 and the right upper transverse tube 2 respectively to prepare a bridge stress monitoring device, and meanwhile, the bridge stress monitoring device can be installed at the node of the bridge. The utility model has reasonable structure, the fiber grating sensor 10 is arranged in the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4, the left upper transverse tube 1, the right upper transverse tube 2, the left lower transverse tube 3 and the right lower transverse tube 4 are respectively arranged at four corners of the bracket, and are supported in the inner cavity of the bridge through the bracket, and meanwhile, the upper reinforcing steel bars 8 and the lower reinforcing steel bars 9 are positioned and fixed with the upper part and the lower part of the inner cavity of the bridge, so that the stress detection is realized at the corresponding position of the bridge.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
1. Bridge stress monitoring devices, its characterized in that: comprises a bracket and a fiber bragg grating sensor (10);
the support comprises an upper left transverse tube (1), an upper right transverse tube (2), a lower left transverse tube (3), a lower right transverse tube (4), vertical rods (5), transverse rods (6) and inclined struts (7), wherein the upper left transverse tube (1), the upper right transverse tube (2), the upper left transverse tube (3) and the lower right transverse tube (4) are parallel to four corners of the support, the upper left transverse tube (1) and the upper right transverse tube (2) are connected with each other through a plurality of transverse rods (6), the upper left transverse tube (1) and the lower left transverse tube (3) are connected with each other through a plurality of vertical rods (5), two inclined struts (7) which are mutually intersected are also arranged between the two adjacent vertical rods (5), a plurality of upper reinforcing steel bars (8) are arranged on the upper surfaces of the upper left transverse tube (1) and the upper right transverse tube (2), and a plurality of lower right transverse tubes (4) are arranged on the lower left transverse tube (3);
fiber bragg grating sensor (10) have four and insert respectively in upper left horizontal pipe (1), upper right horizontal pipe (2), lower left horizontal pipe (3), lower right horizontal pipe (4), fiber bragg grating sensor (10) one end is provided with jumper wire interface (11), fiber bragg grating sensor (10) are located jumper wire interface (11) one end and still are provided with the flange board, the flange board passes through the bolt and links to each other with the tip that corresponds upper left horizontal pipe (1), upper right horizontal pipe (2), lower left horizontal pipe (3), lower right horizontal pipe (4).
2. The bridge stress monitoring device of claim 1, wherein: the outer diameter of the fiber bragg grating sensor (10) is consistent with that of the left upper transverse tube (1), the right upper transverse tube (2), the left lower transverse tube (3) and the right lower transverse tube (4).
3. The bridge stress monitoring device of claim 1, wherein: the left upper transverse tube (1), the right upper transverse tube (2), the left lower transverse tube (3) and the right lower transverse tube (4) are provided with exhaust holes (13) at one ends far away from the jumper wire interface (11).
4. The bridge stress monitoring device of claim 1, wherein: the cross rod (6) is respectively connected with the left upper transverse tube (1), the right upper transverse tube (2), the left lower transverse tube (3) and the right lower transverse tube (4) in a welding mode.
5. The bridge stress monitoring device of claim 1, wherein: the vertical rods (5) are respectively connected with the left upper transverse tube (1), the right upper transverse tube (2), the left lower transverse tube (3) and the right lower transverse tube (4) in a welding mode.
6. The bridge stress monitoring device of claim 1, wherein: the diagonal bracing (7) is respectively connected with the left upper transverse tube (1), the right upper transverse tube (2), the left lower transverse tube (3) and the right lower transverse tube (4) in a welding mode.
7. The bridge stress monitoring device of claim 1, wherein: the fiber grating sensors (10) are all single-mode fibers written with one or more fiber gratings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688796.9U CN219810554U (en) | 2023-03-31 | 2023-03-31 | Bridge stress monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688796.9U CN219810554U (en) | 2023-03-31 | 2023-03-31 | Bridge stress monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219810554U true CN219810554U (en) | 2023-10-10 |
Family
ID=88212817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320688796.9U Expired - Fee Related CN219810554U (en) | 2023-03-31 | 2023-03-31 | Bridge stress monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219810554U (en) |
-
2023
- 2023-03-31 CN CN202320688796.9U patent/CN219810554U/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 |
Granted publication date: 20231010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |