CN214843717U - Non-contact bridge internal reinforcement stress monitoring device - Google Patents
Non-contact bridge internal reinforcement stress monitoring device Download PDFInfo
- Publication number
- CN214843717U CN214843717U CN202121434230.0U CN202121434230U CN214843717U CN 214843717 U CN214843717 U CN 214843717U CN 202121434230 U CN202121434230 U CN 202121434230U CN 214843717 U CN214843717 U CN 214843717U
- Authority
- CN
- China
- Prior art keywords
- bridge
- connecting screw
- sensor
- stress monitoring
- magnetic sensor
- 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.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The embodiment of the utility model provides an inside reinforcing bar stress monitoring devices of non-contact bridge, including magnetic sensor, the server that gathers, detector, the server that gathers is connected with detector and magnetic sensor data transmission, and magnetic sensor includes sensor main part, buffering fixed part. The sensor main body is used for collecting leakage magnetic field signals of reinforcing steel bars inside the bridge. The buffer fixing part is arranged on the bottom surface of the bridge and used for fixing the sensor main body on the bridge floor and reducing the vibration given to the sensor main body by the bridge. The buffering fixed part comprises a connecting screw rod, a mounting plate and an elastic piece, one end of the connecting screw rod is fixed on the bridge, the mounting plate is arranged on the connecting screw rod in a sliding mode, the elastic piece is arranged between the mounting plate and the connecting screw rod, and the sensor main body is arranged on the mounting plate. The utility model provides an inside reinforcing bar stress monitoring devices of non-contact bridge has the advantage that improves the inside reinforcing bar stress monitoring's of bridge precision.
Description
Technical Field
The utility model relates to a bridge detection area especially relates to a non-contact bridge inside reinforcing bar stress monitoring devices.
Background
Among a plurality of bridge structures, the reinforced concrete structure becomes the main structural form of modern large-scale bridge engineering with the advantages of good durability, fire resistance, integrity and moldability, steel conservation and the like. In typical defects of reinforced concrete bridges, fatigue stress failure of bridges, corrosion of reinforcing steel bars and stress concentration damage caused by the corrosion are main factors affecting the durability of reinforced concrete structures. However, in the service process, the damage of the structure becomes more serious with the passage of time and environment, and finally great threat is generated to the safety and durability of the structure. Therefore, it is necessary to predict the health and damage of the bridge by evaluating the service condition of the structure through appropriate monitoring techniques.
Therefore, chinese patent publication No. CN110333007A discloses a non-contact method and device for monitoring stress of internal steel bars of a bridge, which describes that non-contact stress detection is performed on internal steel bars of a bridge by using a magnetic sensor array, a serial server, and a monitor. The magnetic sensors are arranged on the bridge to receive the leakage magnetic field of the reinforcing steel bars in the bridge. However, the magnetic sensor is installed on the bridge, and vehicles often come and go on the bridge, so that the bridge vibrates, the magnetic sensor on the bridge vibrates equally, the accuracy of collecting leakage magnetic field signals by the magnetic sensor is affected, and the detection accuracy of the stress of the reinforcing steel bars in the bridge is further affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a non-contact bridge inside reinforcing bar stress monitoring devices for the magnetic sensor who solves among the prior art leads to the poor technical problem of measurement accuracy because of bridge vibrations after installing on the bridge.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a non-contact bridge inside reinforcing bar stress monitoring devices, includes magnetic sensor, gathers server, detector, gather server and detector and magnetic sensor data transmission and be connected, magnetic sensor includes:
the sensor main body is used for collecting a leakage magnetic field signal of a reinforcing steel bar inside the bridge;
the buffer fixing part is arranged on the bottom surface of the bridge and used for fixing the sensor main body on the bridge floor and reducing the vibration given to the sensor main body by the bridge;
the buffering fixed part includes connecting screw, mounting panel, elastic component, connecting screw's one end is fixed in on the bridge, the mounting panel slide set up in connecting screw is last, the elastic component set up in the mounting panel reaches between the connecting screw, just the both ends of elastic component respectively with connecting screw and mounting panel are connected, the sensor main part set up in on the mounting panel.
In one embodiment, the buffer fixing portion further includes a buffer cushion layer disposed on a contact surface of the sensor body and the mounting plate, and the buffer cushion layer is made of an elastic material.
In one embodiment, the magnetic sensor further comprises a waterproof plate, the waterproof plate is arranged on the connecting screw rod above the sensor body, and the waterproof plate is used for preventing external rainwater from falling onto the sensor body.
In one embodiment, the magnetic sensor further comprises a shielding case, the shielding case is a metal shell without a cover, the shielding case is fixed on the connecting screw rod, the shielding case is arranged outside the sensor body, and the shielding case is not arranged between the sensor body and the bridge floor.
In one embodiment, a through hole is formed in the shielding case, and the information transmission antenna on the magnetic sensor transmits information outwards through the through hole in the shielding case.
In one embodiment, the shield is made of stainless steel.
The embodiment of the present invention provides one or more technical solutions, which at least have the following technical effects or advantages:
the embodiment of the utility model provides an inside reinforcing bar stress monitoring devices of non-contact bridge, including magnetic sensor, the server that gathers, detector, the server that gathers is connected with detector and magnetic sensor data transmission, and magnetic sensor includes sensor main part, buffering fixed part. The sensor main body is used for collecting leakage magnetic field signals of reinforcing steel bars inside the bridge. The buffer fixing part is arranged on the bottom surface of the bridge and used for fixing the sensor main body on the bridge floor and reducing the vibration given to the sensor main body by the bridge. The buffering fixed part comprises a connecting screw rod, a mounting plate and an elastic piece, one end of the connecting screw rod is fixed on the bridge, the mounting plate is arranged on the connecting screw rod in a sliding mode, the elastic piece is arranged between the mounting plate and the connecting screw rod, two ends of the elastic piece are connected with the connecting screw rod and the mounting plate respectively, and the sensor main body is arranged on the mounting plate. The sensor main body is fixed on the bridge floor through the buffer fixing portion, when the bridge body vibrates, the elastic piece between the mounting plate and the connecting screw rod can buffer and reduce the vibration, the vibration quantity conducted to the sensor main body is greatly reduced, the sensor main body can be more stable, the influence of the vibration generated when a vehicle runs on the magnetic sensor by the bridge is reduced, and the precision of monitoring the stress of the reinforcing steel bars inside the bridge is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a non-contact bridge internal reinforcement stress monitoring device provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a magnetic sensor according to an embodiment of the present invention.
Wherein the respective reference numerals are as follows:
1. a sensor body; 2. a buffer fixing part; 3. a waterproof sheet; 4. a shield case; 5. an information transmission antenna; 6. a bridge; 21. a magnetic sensor; 22. a summary server; 23. a detector; 24. a cushion layer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 2, an embodiment of the present application provides a non-contact bridge internal steel bar stress monitoring device, including a magnetic sensor 21, a summary server 22, and a detector 23, where the summary server 22 is connected to the detector 23 and the magnetic sensor 21 for data transmission, and the magnetic sensor 21 includes a sensor body 1 and a buffer fixing portion 2. Wherein, sensor body 1 is used for gathering 6 inside reinforcing bar's of bridge leakage magnetic field signals. The buffer fixing part 2 is disposed on the bottom surface of the bridge 6, and the buffer fixing part 2 is used for fixing the sensor body 1 on the bridge floor and reducing the vibration given to the sensor body 1 by the bridge 6. The buffering fixed part 2 comprises a connecting screw rod, a mounting plate and an elastic piece, one end of the connecting screw rod is fixed on the bridge 6, the mounting plate is arranged on the connecting screw rod in a sliding mode, the elastic piece is arranged between the mounting plate and the connecting screw rod, two ends of the elastic piece are respectively connected with the connecting screw rod and the mounting plate, and the sensor body 1 is arranged on the mounting plate. Through adopting buffering fixed part 2 to fix sensor main part 1 on the bridge floor, when the pontic takes place vibrations, the elastic component that is in between mounting panel and the connecting screw can cushion this vibrations and cut down, reduces the vibrations volume of conduction to sensor main part 1 by a wide margin, and then makes sensor main part 1 can be more stable, reduces bridge 6 and goes through the influence to magnetic sensor 21 of vibrations that produce because of the vehicle, and then improves the precision of 6 inside reinforcing bar stress monitoring of bridge.
In one embodiment, the buffer fixing portion 2 further includes a buffer layer 24, the buffer layer 24 is disposed on a contact surface between the sensor body 1 and the mounting plate, the buffer layer 24 is made of an elastic material (such as sponge, cotton, etc.), and by disposing the buffer layer 24, the buffer damping capacity of the buffer fixing portion 2 is further improved, the influence of the vibration of the bridge 6 on the magnetic sensor 21 is further reduced, and the precision of the stress detection of the detection device is improved.
In one embodiment, the magnetic sensor 21 further comprises a waterproof plate 3, the waterproof plate 3 is disposed on the connecting screw rod above the sensor body 1, and the waterproof plate 3 is used for preventing external rainwater from falling onto the sensor body 1. The waterproof board 3 is made of plastic, and the waterproof board does not obstruct the detection of the leakage magnetic field signal of the reinforcing steel bar inside the bridge 6 by the sensor body 1, and meanwhile, the water on the bridge 6 can be prevented from entering the sensor body 1 to damage the sensor body 1, so that the service life of the magnetic sensor 21 is prolonged.
In one embodiment, the magnetic sensor 21 further includes a shielding case 4, the shielding case 4 is a metal shell without a cover, the shielding case 4 is fixed on the connecting screw, the shielding case 4 is covered outside the sensor body 1, and the shielding case 4 is not arranged between the sensor body 1 and the bridge deck. Through setting up shield cover 4 for signals such as other disorderly magnetic fields of external world are difficult for influencing magnetic sensor 21, make magnetic sensor 21 can more accurate collection leakage magnetic field signal, can not disturbed by other magnetic fields on every side, and then improve the precision that detection device stress detected.
In one embodiment, the shield case 4 is provided with a through hole, and the information transmission antenna 5 on the magnetic sensor 21 transmits information outward through the through hole on the shield case 4.
In one embodiment, the shielding case 4 is made of stainless steel, and the shielding case 4 made of stainless steel is not easy to corrode and rust while shielding other interference signals.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides an inside reinforcing bar stress monitoring devices of non-contact bridge, includes magnetic sensor, gathers server, detector, it is connected with detector and magnetic sensor data transmission to gather the server, its characterized in that, magnetic sensor includes:
the sensor main body is used for collecting a leakage magnetic field signal of a reinforcing steel bar inside the bridge;
the buffer fixing part is arranged on the bottom surface of the bridge and used for fixing the sensor main body on the bridge floor and reducing the vibration given to the sensor main body by the bridge;
the buffering fixed part includes connecting screw, mounting panel, elastic component, connecting screw's one end is fixed in on the bridge, the mounting panel slide set up in connecting screw is last, the elastic component set up in the mounting panel reaches between the connecting screw, just the both ends of elastic component respectively with connecting screw and mounting panel are connected, the sensor main part set up in on the mounting panel.
2. The non-contact bridge internal steel bar stress monitoring device according to claim 1, wherein:
the buffer fixing part further comprises a buffer cushion layer, the buffer cushion layer is arranged on the contact surface of the sensor main body and the mounting plate, and the buffer cushion layer is made of elastic materials.
3. The non-contact bridge internal steel bar stress monitoring device according to claim 1, wherein:
the magnetic sensor further comprises a waterproof plate, the waterproof plate is arranged on the connecting screw rod above the sensor body, and the waterproof plate is used for preventing external rainwater from falling onto the sensor body.
4. The non-contact bridge internal steel bar stress monitoring device according to claim 1, wherein:
the magnetic sensor further comprises a shielding cover which is a metal shell without a cover and is fixed on the connecting screw rod, the shielding cover is covered outside the sensor body, and the shielding cover is arranged between the sensor body and the bridge floor.
5. The non-contact bridge internal steel bar stress monitoring device according to claim 4, wherein:
the shielding cover is provided with a through hole, and the information transmission antenna on the magnetic sensor penetrates through the through hole on the shielding cover to transmit information outwards.
6. The non-contact bridge internal steel bar stress monitoring device according to claim 4, wherein:
the shielding case is made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434230.0U CN214843717U (en) | 2021-06-25 | 2021-06-25 | Non-contact bridge internal reinforcement stress monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434230.0U CN214843717U (en) | 2021-06-25 | 2021-06-25 | Non-contact bridge internal reinforcement stress monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214843717U true CN214843717U (en) | 2021-11-23 |
Family
ID=78810235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121434230.0U Active CN214843717U (en) | 2021-06-25 | 2021-06-25 | Non-contact bridge internal reinforcement stress monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214843717U (en) |
-
2021
- 2021-06-25 CN CN202121434230.0U patent/CN214843717U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107621319B (en) | Bow net contact force measuring method and measuring device thereof | |
| CN106891914A (en) | Rail clip working state of system real-time monitoring device, system and method | |
| CN111678664B (en) | Curtain wall plate falling risk discrimination method based on vibration analysis | |
| CN207556715U (en) | A kind of bow net contact force measuring device | |
| CN214843717U (en) | Non-contact bridge internal reinforcement stress monitoring device | |
| CN108277738B (en) | Intelligent lead rubber support | |
| CN207730303U (en) | Anti- liquid fluctuating interference liquid level detection gauge and detection device | |
| CN214373020U (en) | Signal acquisition device for bridge reinforcing steel bar elastic stress detection | |
| US20110219867A1 (en) | Measuring Apparatus with AE Sensor, Installing Method Thereof, and Set of the Measuring Apparatus | |
| CN206475888U (en) | Rail clip working state of system real-time monitoring device and system | |
| CN108627290A (en) | A method of improving bridge strain monitoring sensitivity | |
| CN216206851U (en) | High-temperature high-humidity liquid level detection and control device | |
| CN202264695U (en) | Weighing sensing system based on detection of axle housing deformation of vehicle | |
| CN211121460U (en) | Liquid level detection device | |
| CN211036583U (en) | Floating plate track vertical displacement measuring device | |
| CN218412356U (en) | Composite electromagnetic length measuring and flaw detecting device | |
| CN203117223U (en) | Mine environment parameter measuring device | |
| CN213209327U (en) | Three-dimensional force sensor | |
| CN202255273U (en) | Strain transducer for measuring structure flexibility | |
| CN210397545U (en) | Vibration isolator capable of being monitored on line | |
| CN214793104U (en) | Detection apparatus for construction dish knot formula support frame load is built in room | |
| CN214951779U (en) | Simple device for measuring bridge vibration | |
| CN213688216U (en) | Concrete reinforcement detection device | |
| CN221404566U (en) | Short cable internal force testing device based on deformation | |
| CN216645579U (en) | Frequency acquisition instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |