CN218481117U - Bridge wind-induced response monitoring system - Google Patents
Bridge wind-induced response monitoring system Download PDFInfo
- Publication number
- CN218481117U CN218481117U CN202222600603.8U CN202222600603U CN218481117U CN 218481117 U CN218481117 U CN 218481117U CN 202222600603 U CN202222600603 U CN 202222600603U CN 218481117 U CN218481117 U CN 218481117U
- Authority
- CN
- China
- Prior art keywords
- wind
- bridge
- speed measuring
- monitoring system
- induced response
- 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
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a bridge wind-induced response monitoring system, which comprises an anemoscope, a wind pressure sensor, an embedded part, a control center and a handheld terminal; the anemoscope comprises a body, a speed measuring rotor shaft is embedded in the body, and a wind wheel rotating rod and a speed measuring wind wheel are installed at one end of the speed measuring rotor shaft; the bottom end of the speed measuring rotor shaft is provided with a cam disc, and the cam disc comprises a shading part; the upper side and the lower side of the cam disc are respectively provided with a light source plate and a photosensitive detection plate; the wind pressure sensors are arranged on the bridge deck, the wind nozzles and the beam bottom of the bridge; the embedded parts are embedded at two sides of a bridge crack in pairs and used for calibrating the change of the crack width; the control center is electrically connected with the anemoscope and the wind pressure sensor and used for receiving and storing wind speed and wind pressure and simultaneously storing the distance between every two groups of embedded parts. The utility model discloses can realize the high frequency dynamic monitoring to wind-force during the typhoon effect, adopt built-in fitting camera to survey the crack and change, combine bridge wind field monitoring, provide the basis for the research of bridge crack change law under the wind-induced response.
Description
Technical Field
The utility model relates to a bridge monitored control system, concretely relates to bridge wind-induced response monitoring system.
Background
The bridge monitoring is a safe operation and maintenance engineering technology for collecting, early warning and analyzing bridge load, structural response and cable force change based on a detection technology. In recent years, the rapid increase of annual average traffic volume of highways accelerates the aging and damage of bridges, particularly large-span bridges, which are in overload service throughout the year. The frequent bridge collapse events each year cause adverse effects, and the adverse effects are mainly caused by bridge aging and lack of maintenance.
The action of wind on the bridge is a very complex phenomenon, and is limited by the natural characteristics of wind, the structural dynamic performance and the interaction between the wind and the structure. Under strong wind-induced response, the structural bearing capacity of the long-span bridge is tested while the safety of the bridge traveling crane is reduced. The traditional bridge monitoring system mainly focuses on the directions of traffic load correspondence, inhaul cable force monitoring, structural material detection and the like for bridge disease research. With the increase of typhoon disaster frequency in recent years, the structural wind-induced response of the bridge under the typhoon effect is increasingly obvious, so that the all-weather monitoring of the bridge wind power and the timely acquisition of the crack displacement condition of the key positions of the main beam and the bridge tower are of great importance during the typhoon emergency management event, and the method can provide more perfect data support for the research of the aging cause and the aging change rule of the bridge under the wind-induced response.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a bridge wind-induced response monitoring system combines the data acquisition of multidimension degree, provides the support for bridge monitoring system to wind field data and the analysis of wind-induced response and bridge health monitoring system's real-time analysis, warning and emergency treatment ability.
The technical scheme is as follows: a bridge wind-induced response monitoring system, comprising:
the anemoscope comprises a machine body, a speed measuring rotor shaft is embedded in the machine body, one end of the speed measuring rotor shaft extends out of the machine body and then is connected with a plurality of wind wheel rotating rods, and a speed measuring wind wheel is mounted at the end part of each wind wheel rotating rod; the bottom end of the speed measuring rotor shaft is provided with a cam disc, and the cam disc comprises a shading part; the upper side and the lower side of the cam plate are respectively provided with a light source plate and a photosensitive detection plate; the wind power drives the speed measuring wind wheel, the speed measuring rotor shaft and the cam disc to rotate in sequence, and when the shading part of the cam disc rotates to a position between the light source plate and the photosensitive detection plate, signals between the light source plate and the photosensitive detection plate are cut off;
the wind pressure sensor is arranged at the bridge deck, the wind nozzle and the beam bottom of the bridge;
the embedded parts are embedded at two sides of a bridge crack in pairs and used for calibrating the change of the crack width;
the control center is electrically connected with the wind speed instrument and the wind pressure sensor and used for receiving wind field data; the control center comprises a storage unit, and the storage unit stores the distance between each group of embedded parts and historical wind field data.
Preferably, the anemoscope and/or the wind pressure sensor comprise a wireless communication module, and the wireless communication module is in communication connection with the control center and the handheld terminal.
In addition, the system further comprises a cable force meter and/or a bridge deck stress sensor.
Furthermore, anemoscope and/or wind pressure sensor still include bluetooth module, bluetooth module and handheld terminal communication connection.
Furthermore, the device also comprises a camera; the camera is arranged on one side of the crack and used for shooting crack changes; the control center is electrically connected with the camera, and crack images are stored in the control center.
Further preferably, the system further comprises an alarm module, and the alarm module is electrically connected with the control center. Preferably, the alarm module is in communication connection with the handheld terminal.
Preferably, the bottom end of the speed measuring rotor shaft is nested with a first driving wheel, one side of the driving wheel is meshed with a linkage wheel carrier, one side of the bottom end of the linkage wheel carrier is meshed with a second driving wheel, the bottom end of a rotating shaft of the second driving wheel is nested with a cam disc, and one side of the cam disc extends into a position between the light source plate and the photosensitive detection plate; the wind power drives the speed measuring wind wheel, the speed measuring rotor shaft, the first driving wheel, the linkage wheel frame, the second driving wheel and the cam disc to rotate in sequence, and when the shading part of the cam disc rotates to a position between the light source plate and the photosensitive detection plate, signals between the light source plate and the photosensitive detection plate are cut off.
Preferably, a supporting part is arranged at the bottom end of the machine body, and the light source plate and the photosensitive detection plate are detachably mounted on the supporting part.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the high-frequency dynamic monitoring of wind power during typhoon action can be realized, so that a large amount of bridge wind field data are provided for bridge safety monitoring, and data support is provided for subsequent wind-induced response research;
2. the crack width is calibrated by adopting an embedded part, and a basis is provided for the research of the change rule of the bridge crack under wind-induced response by combining with the monitoring of a bridge wind field;
3. the Bluetooth wireless communication system has wireless communication capability, supports Bluetooth communication and is flexible, reliable and stable in data transmission;
4. compared with a current type anemometer, the photosensitive anemometer is more suitable for being used during typhoon emergency management; a speed regulating mechanism (a plurality of driving wheels and a linkage wheel carrier structure) is arranged in the anemograph, and the conduction or cut-off frequency of an optical signal is adjusted by adjusting gear parameters, so that the measurement precision under different conditions is met; meanwhile, the height of the light source plate and the height of the photosensitive detection plate are adjustable, and the installation, the disassembly and the maintenance are convenient.
Drawings
Fig. 1 is a schematic diagram of a system module according to the present invention (arrows indicate signal transmission directions);
FIG. 2 is a schematic layout view of the embedded part of the present invention;
FIG. 3 is an enlarged cross-sectional view of A in FIG. 2;
fig. 4 is a schematic view of a partial arrangement of the anemometer of the present invention;
FIG. 5 is a schematic external view of the anemometer of FIG. 4;
FIG. 6 is a wind rotor blade configuration view of the anemometer of FIG. 4;
FIG. 7 is a cross-sectional view of the body of the preferred embodiment of the anemometer of the present invention;
fig. 8 is an exploded view of a fixing manner of the support portion, the light source plate, and the photosensitive detection plate.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to fig. 3, a bridge wind-induced response monitoring system includes an anemoscope 1, a wind pressure sensor 2, an embedded part 3, a control center 4 and a handheld terminal 5. Anemoscope 1 arranges in bridge both sides and eminence, and wind pressure sensor 2 arranges bridge floor, tuyere and the beam bottom position at the bridge, and anemoscope 1 and wind pressure sensor 2 respectively with control center 4 electric connection, can gather bridge wind speed and wind pressure in real time to transmit wind speed wind pressure to control center 4. The embedded parts 3 are arranged on two sides of the key crack in pairs and used for calibrating crack displacement (mainly change of crack width); and arranging 1-5 groups of embedded parts on two sides of each crack according to the trend and the depth of the crack, wherein the connecting line of each group of embedded parts is perpendicular to the trend of the crack at the current position of the crack.
Because the wind power grade is positively correlated with the wind speed and the wind pressure, when the wind field value fed back to the control center 4 by the anemoscope 1 and the wind pressure sensor 2 is higher than a safety threshold value, engineering monitoring personnel should monitor the change of the distance D between each group of embedded parts in real time; optionally, the distance D between each group of embedded parts can be measured by adopting an artificial measurement mode, for example, a vernier caliper is adopted, the crack change can be monitored by combining equipment such as an ultrasonic detector and a camera 6, and when the system adopts the camera 6, the camera 6 is electrically connected with the control center 4, so that the camera 6 feeds back field images to the control center 4 in real time. The measured distance D between the embedded parts or the crack displacement is updated to the control center 4 in time, and preferably, the data are recorded into the control center 4 by a worker through the handheld terminal 5. The handheld terminal 5 is a device for communication between a worker and the control center 4, can support transmission of wind field and crack data, correspondingly, the control center 4 comprises a storage unit, the storage unit stores embedded part intervals, crack forms/parameters and historical wind field data, and time tags are marked on the historical wind field data, the crack forms and the embedded part intervals.
Specifically, the anemoscope 1 and the wind pressure sensor 2 include a wireless communication module, which may be a wireless WIFI module, a 4G module or a 5G module. The anemoscope 1 and the wind pressure sensor 2 establish data communication with the control center 4 and/or the handheld terminal 5 through the wireless communication module. Further preferably, the anemoscope 1 and the wind pressure sensor 2 further include a bluetooth module, which is mainly used for implementing near field communication with the handheld terminal 5.
Furthermore, the system also comprises a cable dynamometer 8 and a bridge deck stress sensor 9, wherein the cable dynamometer 8 and the bridge deck stress sensor 9 are respectively in communication connection with the control center 4 and are used for providing bridge service parameters with more dimensions and providing comprehensive and multidimensional data support for the control center 4 to comprehensively analyze the health condition of the bridge.
Furthermore, the system also comprises an early warning module 7, and the early warning module 7 is in communication connection with the control center 4 and the handheld terminal 5. The control center 4 analyzes and processes the acquired wind field parameters (wind speed and wind direction), the cable force of the stay cable and the bridge deck stress, evaluates the service state of the bridge by combining a preset safety threshold value, and outputs overrun alarm information to the early warning module 7 if necessary.
As shown in fig. 4-6, the utility model discloses propose improving to the anemoscope, anemoscope 1 includes fuselage 101, and speed measurement rotor shaft 111 is located fuselage 101, and the erection joint wind wheel bull stick 103 behind fuselage 101 is stretched out to its one end, and the one end welded fastening of wind wheel bull stick 103 has speed measurement wind wheel 131. Wind wheel rotor 103 is fixed to tachometer rotor shaft 111 by rotor chuck 102.
Specifically, the rotating rod chuck 102 includes a cover plate 121 and a rotating rod clamping seat 122, a rotating rod limiting groove is formed in the rotating rod clamping seat 122, the number and the position of the rotating rod limiting groove correspond to the wind wheel rotating rods 103 one to one, a limiting rod is arranged in the rotating rod limiting groove, one end of each wind wheel rotating rod 103 is provided with a jack 132, and the limiting rod and the jack 132 are installed in an adaptive mode. The rotating rod chuck 102, the wind wheel rotating rod 103 and the rotating rod clamping seat 122 are fixed on the top end of the speed measuring rotor shaft 111 in an extruding way through a nut 104.
Among the above-mentioned structure, be equipment detachable structure between bull stick dop 102 and the fan wheel rotor spindle 103 to and be between bull stick dop 102 and the rotor shaft 111 that tests the speed, cancelled traditional welding or integral type structure, be convenient for change impaired piece.
The bottom end of the tachometer rotor shaft 111 is provided with a cam disc 115, and the cam disc 115 comprises a light shielding part 151; the upper and lower sides of the cam plate 115 are provided with a light source plate 117 and a photosensitive detection plate 118, respectively; the tachometer rotor shaft 111 rotates the cam plate 115, and the light shielding portion 151 frequently shields the light source plate 117 and the photosensitive detection plate 118 when the cam plate 115 rotates, and the wind speed is calculated based on the shielding frequency.
As shown in fig. 7 and 8, the preferred embodiment of the above structure, a first driving wheel 112, a linkage wheel carrier 113 and a second driving wheel 114 are nested between the tachometer rotor shaft 111 and the cam disc 115. The first driving wheel 112 is connected with the speed measuring rotor shaft 111, one side of the first driving wheel 112 is connected with a linkage wheel carrier 113 in a meshing way, one side of the bottom end of the linkage wheel carrier 113 is connected with a second driving wheel 114 in a meshing way, and the bottom end of the rotating shaft of the second driving wheel 114 is nested in a cam disc 115. One side of the cam plate 115 is located between the light source plate 117 and the photo sensor detection plate 118; the wind power drives the tachometer wind wheel 131, the tachometer rotor shaft 111, the first driving wheel 112, the linked wheel carrier 113, the second driving wheel 114 and the cam disc 115 to rotate in sequence, and when the light shielding part 151 of the cam disc 115 rotates to a position between the light source plate 117 and the photosensitive detection plate 118, the signal between the light source plate 117 and the photosensitive detection plate is cut off. The first driving wheel 112, the linkage wheel carrier 113 and the second driving wheel 114 can enable the cam disc 115 to transmit the motion and power of the top wind wheel according to a specified speed ratio.
Furthermore, a supporting portion 116 is disposed at the bottom end of the body 101, and a wiring hole 104 is disposed at the center of the bottom end. The light source plate 117 and the photo sensor detection plate 118 are detachably mounted on the supporting portion 116, so that the heights, positions and intervals of the light source plate 117 and the photo sensor detection plate 118 are more adjustable and controllable. Specifically, the light source plate 117 and the photosensitive detection plate 118 are pressed, limited and fixed to the support rod 116 by the locking screw 105 (shown in fig. 8). A locking screw 119 is inserted into one side of the wire hole 104 to press the supporting portion 116 (shown in fig. 7).
Under the condition that the machine body 101 is provided with the multi-stage driving wheels, the height and the distance between the light source plate 117 and the photosensitive detection plate 118 can be adjusted by movably nesting the light source plate 117 and the photosensitive detection plate 118, so that the light source plate is adaptive to the position and the thickness of the cam disc 115, light leakage is avoided, and the detection accuracy is improved.
Description of the drawings: the utility model discloses request protection bridge detecting system framework (including module connection relation, equipment structure), wherein control center is to the analysis processes process of wind speed, cable force, stress, crack width to and the process of calculating transfinite alarm information through parameter extraction all is independent of the utility model discloses a software product, nevertheless can be by the utility model discloses executed.
Claims (10)
1. A bridge wind-induced response monitoring system, comprising:
the wind speed measuring device comprises an anemoscope (1), wherein the anemoscope (1) comprises a machine body (101), a speed measuring rotor shaft (111) is embedded in the machine body (101), one end of the speed measuring rotor shaft (111) extends out of the machine body (101) and then is connected with a plurality of wind wheel rotating rods (103), and a speed measuring wind wheel (131) is installed at the end part of each wind wheel rotating rod (103); the bottom end of the speed measuring rotor shaft (111) is provided with a cam disc (115), and the cam disc (115) comprises a light shielding part (151); the upper side and the lower side of the cam plate (115) are respectively provided with a light source plate (117) and a photosensitive detection plate (118); the wind power drives the speed measuring wind wheel (131), the speed measuring rotor shaft (111) and the cam disc (115) to rotate in sequence, and when the shading part (151) of the cam disc (115) rotates to a position between the light source plate (117) and the photosensitive detection plate (118), signals between the light source plate (117) and the photosensitive detection plate are cut off;
the wind pressure sensor (2) is arranged at the bridge deck, the wind nozzle and the beam bottom of the bridge;
the embedded parts (3) are embedded at two sides of the bridge crack in pairs and used for calibrating the change of the crack width;
the control center (4) is electrically connected with the anemoscope (1) and the wind pressure sensor (2) and is used for receiving wind field data; the control center (4) comprises a storage unit (301), and the storage unit (301) stores the distance and historical wind field data of each group of embedded parts (3);
and the handheld terminal (5) is in communication connection with the control center (4).
2. The bridge wind induced response monitoring system of claim 1, wherein: the anemoscope (1) and/or the wind pressure sensor (2) comprise a wireless communication module, and the wireless communication module is in communication connection with the control center (4).
3. The bridge wind induced response monitoring system of claim 2, wherein: the wireless communication module is in communication connection with the handheld terminal (5).
4. A bridge wind-induced response monitoring system according to claim 1 or 2, characterized in that: the anemoscope (1) and/or the wind pressure sensor (2) further comprise a Bluetooth module, and the Bluetooth module is in communication connection with the handheld terminal (5).
5. The bridge wind induced response monitoring system of claim 1, wherein: the device also comprises a camera (6); the camera (6) is arranged on one side of the crack and used for shooting crack changes; the control center (4) is electrically connected with the camera (6), and the crack image is stored in the control center (4).
6. The bridge wind induced response monitoring system of claim 1, wherein: the intelligent alarm system is characterized by further comprising an alarm module (7), wherein the alarm module (7) is electrically connected with the control center (4).
7. The bridge wind-induced response monitoring system of claim 6, wherein: the alarm module (7) is in communication connection with the handheld terminal (5).
8. The bridge wind induced response monitoring system of claim 1, wherein: the device also comprises a cable dynamometer (8) and/or a bridge deck stress sensor (9).
9. The bridge wind-induced response monitoring system of claim 1, wherein: a first driving wheel (112) is nested at the bottom end of the speed measuring rotor shaft (111), one side of the driving wheel (112) is in meshing connection with a linkage wheel carrier (113), one side of the bottom end of the linkage wheel carrier (113) is in meshing connection with a second driving wheel (114), the bottom end of a rotating shaft of the second driving wheel (114) is nested with a cam disc (115), and one side of the cam disc (115) extends between a light source plate (117) and a photosensitive detection plate (118); the wind power drives the speed measuring wind wheel (131), the speed measuring rotor shaft (111), the first driving wheel (112), the linkage wheel carrier (113), the second driving wheel (114) and the cam disc (115) to rotate in sequence, and when the shading part (151) of the cam disc (115) rotates to a position between the light source plate (117) and the photosensitive detection plate (118), signals between the light source plate (117) and the photosensitive detection plate are cut off.
10. The bridge wind-induced response monitoring system of claim 9, wherein: a supporting part (116) is arranged at the bottom end of the machine body (101), and the light source plate (117) and the photosensitive detection plate (118) are detachably arranged on the supporting part (116).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222600603.8U CN218481117U (en) | 2022-09-30 | 2022-09-30 | Bridge wind-induced response monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222600603.8U CN218481117U (en) | 2022-09-30 | 2022-09-30 | Bridge wind-induced response monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218481117U true CN218481117U (en) | 2023-02-14 |
Family
ID=85167390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222600603.8U Active CN218481117U (en) | 2022-09-30 | 2022-09-30 | Bridge wind-induced response monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218481117U (en) |
-
2022
- 2022-09-30 CN CN202222600603.8U patent/CN218481117U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112097706B (en) | Wind power tower cylinder flange bolt looseness real-time monitoring system and early warning method | |
| CN112357768B (en) | Monitoring device and monitoring method for tower lifting condition | |
| CN110879053A (en) | Multi-sensor integrated automatic slope deformation monitoring device | |
| CN111721969A (en) | Tower drum health state monitoring method based on fixed detection and movable detection | |
| CN201686412U (en) | Levelness real-time monitoring device for arm support of large crane | |
| CN107014435A (en) | A kind of transmission line of electricity typhoon disaster observation tower | |
| CN115540939A (en) | Intelligent monitoring system of flexible support of photovoltaic power plant | |
| CN116295637A (en) | Intelligent monitoring method and system for safety of high-altitude building | |
| CN218481117U (en) | Bridge wind-induced response monitoring system | |
| CN114525733A (en) | Light high-strength intelligent detection robot for appearance and cable force detection of bridge inhaul cable | |
| CN210605036U (en) | Distributed meteorological monitoring system | |
| CN210513017U (en) | High formwork upright rod displacement real-time monitoring system based on CCD sensor | |
| CN210664568U (en) | Building site raise dust monitoring device | |
| CN116504029A (en) | Debris flow early warning device based on rainfall monitoring and use method | |
| CN115683233A (en) | Multi-parameter monitoring device and method for modular bridge expansion device | |
| CN214951155U (en) | Vertical shaft cage guide deformation optical fiber real-time monitoring system | |
| CN213933034U (en) | Bridge deflection measuring device based on stay cord sensor | |
| CN215263274U (en) | Device for detecting glass curtain wall | |
| CN211425893U (en) | Building cylinder load detection device | |
| CN206618446U (en) | A kind of transmission line of electricity typhoon disaster observation tower | |
| CN206618436U (en) | Electric tower construction monitoring apparatus and system | |
| CN118090183A (en) | Wind power blade performance detection system and method | |
| CN219240276U (en) | Bridge crane wind-resistant safety test mechanism | |
| CN2132998Y (en) | Maintenance test instrument for overhead cable | |
| CN109916741A (en) | A kind of composite impact crack detection algorithm based on optical fiber grating sensing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |