CN115683505A - Bridge health detection system based on Beidou satellite - Google Patents
Bridge health detection system based on Beidou satellite Download PDFInfo
- Publication number
- CN115683505A CN115683505A CN202211171674.9A CN202211171674A CN115683505A CN 115683505 A CN115683505 A CN 115683505A CN 202211171674 A CN202211171674 A CN 202211171674A CN 115683505 A CN115683505 A CN 115683505A
- Authority
- CN
- China
- Prior art keywords
- bridge
- health detection
- detection system
- base station
- beidou satellite
- 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.)
- Pending
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The application provides a bridge health detection system based on big dipper satellite, belong to bridge detection technical field, this bridge health detection system based on big dipper satellite, including bridge subassembly and health detection subassembly, the operator will install the edge that the base station was installed on the bridge surface, erect the installation base station on the installation base station afterwards, then the accessible lifter shifts up GPS satellite positioning appearance to a take the altitude, adjust GPS satellite positioning appearance to a take the place through external horizontal correction equipment and lifter afterwards, accomplish the installation work to GPS satellite positioning appearance, laser displacement sensor can install on the surface of installation base station, a measuring to the submergence of bridge and bridge pile, the fixed inclinometer of box-type passes through external screw thread pole and installs in the bottom of installation base station, staff's accessible external screw thread pole adjusts the fixed inclinometer of box-type position on the bridge simultaneously, with this rationally installs and adjust work health detection subassembly.
Description
Technical Field
The application relates to the technical field of bridge detection, in particular to a bridge health detection system based on a Beidou satellite.
Background
The bridge, generally mean erect in river, lake and sea, make the structure that vehicles and pedestrians can pass smoothly, in order to adapt to the modern high-speed developed traffic industry, the bridge also extends to span mountain stream, unfavorable geology or meet other traffic needs and make the more convenient building of passing erect, the bridge generally is made up of superstructure, substructure, support and additional structure, the superstructure is also called the bridge and strides the structure, it is the main structure which strides over the obstacle; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting position of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structures include bridge end attachment plates, tapered revetments, and diversion works
However, in the process of building and putting into use, the bridge has a certain service life, and due to factors such as environment, heavy load of vehicles, collision accidents and external interference, the bridge is damaged to different degrees to generate potential safety hazards, so that the service life of the bridge can be greatly prolonged, and a bridge health detection system is often used for detecting the health state of the bridge;
the bridge health detection aims at clearing main reasons of defects and damages by means of the technical conditions of the bridge, the properties, the parts, the severity and the development trend of the defects and the damages so as to analyze and evaluate the influence of the existing defects and damages on the bridge and the bearing capacity of the bridge, and reliable technical data and basis are not provided for bridge maintenance and reinforcement design;
at present, bridges are detected regularly at regular time by manpower, and if the bridges are installed in remote areas or areas with severe environments, workers are inconvenient to overhaul and cannot acquire health data of the bridges in time;
meanwhile, in the existing bridge detection, all sensors are installed on a bridge to detect the health state of the bridge, but under the condition of installing all the sensors, workers are difficult to effectively and quickly correct the reference of all the sensors, and cannot ensure that all the sensors are adjusted to be consistent horizontal planes through an external level gauge, the existing bridge detection is simple and convenient in precision, and meanwhile, the labor intensity of operators is greatly increased;
thirdly, the bridge body of present bridge and being connected of pier can be divided into fixed and through support swing joint's form, and present connects the advantage of bringing through the support and is: force transfer devices are arranged on the bridge body structure and the bridge pier, so that large loads can be transferred, the bridge body structure can be guaranteed to generate certain displacement, the bridge pier pressure can be shared, the bridge body pressure can be buffered, and the problems of vibration under the bridge body, inevitable thermal expansion, cold contraction and the like can be buffered;
but along with long-time use, support on the pier is very easily taken place deformation and sink the scheduling problem, because of the mounting of support on the pier is comparatively secret, operating personnel is difficult to regularly detect it, can't effectually acquire the impaired data that the pier supported, then when support on the pier reaches certain damage degree, the staff is difficult to in time maintain and change it, seriously very easily causes the pontic to take place pathological change or collapse, exists certain potential safety hazard.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. For this reason, this application provides a bridge health detection system based on big dipper satellite, through increasing the regulation structure, can install each sensing component through leveling equipment fast, uses through setting up the cooperation of multiple sensing module, can detect the subsidence of bridge and pier, effectively detect the gradient and the levelness of pontic, through increase detecting element in the support position, can detect the impaired intensity of support and the offset of bridge.
The application is realized as follows:
the application provides a bridge health detection system based on big dipper satellite, including bridge subassembly and health detection subassembly.
The bridge subassembly includes bridge, bridge pile, vibration sensor, ultrasonic transducer and processing terminal respectively, the bridge pile sets up in the bottom of bridge, the vibration sensor is installed in the bottom of bridge, ultrasonic transducer sets up in the both ends of bridge bottom, processing terminal sets up in one side at bridge top, the health detection subassembly is respectively including the fixed inclinometer of installation base station, a lift section of thick bamboo, GPS satellite positioning appearance, external screw thread pole, laser displacement sensor and box-type, a lift section of thick bamboo sets up in the top of installation base station, GPS satellite positioning appearance sets up in the top of a lift section of thick bamboo, external screw thread pole and laser displacement sensor all set up in one side of installation base station, the fixed inclinometer of box-type sets up in the bottom of external screw thread pole.
In one embodiment of the application, the receiver is installed at the center of the bottom of the bridge, and the bridge is erected on the top of the bridge.
In an embodiment of this application, the bottom of installation base station is provided with splint, splint are L shape, the equal integrated into one piece in the left and right sides of installation base station has the locating plate.
In an embodiment of this application, the inner chamber of a lift section of thick bamboo slides and is provided with the lifter, the top of a lift section of thick bamboo left and right sides all runs through and is provided with extrusion screw, and there is the extrusion crown plate horizontal two relative one sides of extrusion screw through bearing swing joint, the homogeneous body shaping in both sides of a lift section of thick bamboo has the strengthening rib.
In an embodiment of the application, the surface of extrusion crown plate and lifter all is anti-skidding to be handled, the scale mark has been seted up on the surface of lifter, the other end integrated into one piece of extrusion screw has the handle.
In an embodiment of the application, an electric storage device is installed to one side of GPS satellite positioning appearance, one side of a lift section of thick bamboo is provided with solar panel, one side fixed mounting of solar panel has the connecting plate.
In one embodiment of the present application, the outer surface of the externally threaded rod is provided with a mounting seat, and the top of the externally threaded rod is integrally formed with a limiting disc.
In one embodiment of the application, the top of the mounting seat is movably embedded with an internal thread cylinder through a bearing, and the top of the surface of the internal thread cylinder is fixedly connected with a rotating handle.
In an embodiment of the application, one side of laser displacement sensor is provided with the mount table, the equal fixedly connected with reinforcing bar in both sides about the mount table is left.
In one embodiment of the application, the bottom of the box-type fixed inclinometer is provided with a base, and the base is connected with one side of the box-type fixed inclinometer opposite to the base through a bolt.
In an embodiment of the application, the bridge health detection system based on the Beidou satellite further comprises a bridge body detection assembly.
The pontic determine module is including consolidating base, support, angular transducer, inside casing and displacement sensor respectively, consolidate the base and set up both sides around one side relatively in bridge and bridge pier, the support sets up in the top of consolidating the base, the inside casing sets up in one side that two supports are relative, angular transducer sets up in the inner chamber of inside casing, displacement sensor sets up in the bottom of inside casing.
In one embodiment of the application, the reinforcing base is made of concrete and steel bars, and the top of the support is connected with the bottom of the bridge.
In one embodiment of the present application, the mount is a pot rubber mount, and the mount is formed by combining a steel plate and rubber.
In one embodiment of the application, the inner frame is provided with connecting plates on two sides of the inner cavity, guide plates are arranged on the opposite sides of the two connecting plates, and supporting plates are integrally formed on the front side and the rear side of the top of the inner frame.
In an embodiment of the present application, the tilt sensor is disposed at one end of the connecting plate, and the bottom of the lower moving plate is disposed with a connecting frame.
The beneficial effect of this application is: the utility model provides a bridge health detection system based on big dipper satellite that obtains through above-mentioned design, when using, when installing health detection subassembly, at first the staff installs the edge on bridge surface with the installation base station, and fix through the bolt, erect the installation base station on the installation base station afterwards, then can go up GPS satellite positioning appearance to a take the altitude through the lifter, later through external horizontal correction equipment and lifter adjustment GPS satellite positioning appearance to a certain position, accomplish the installation work to GPS satellite positioning appearance, laser displacement sensor can install in the surface of installation base station, is used for measuring the sinkage degree of bridge and bridge pier, box-type fixed inclinometer installs in the bottom of installation base station through external screw thread pole, meanwhile, the position of the box-type fixed inclinometer on the bridge can be adjusted by a worker through the external threaded rod, reasonable installation and adjustment work can be carried out on the health detection assembly, when the subsidence of the support is detected, the support is stressed for a long time and is extremely easy to cause to subside, no effective support is arranged around the bridge, the area where the support is located can be stressed to subside, the displacement sensor is driven to move by subsidence, the displacement of the displacement sensor is related to the movement of the position of an object in the movement process, the subsidence distance of the bridge can be detected, the damage degree of the support can be judged, the bridge and a bridge pile are in separation connection through the support, the bridge can generate certain displacement, and when the bridge generates displacement, the displacement angle measured by the inclination angle sensor can be driven.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural perspective view of a bridge health detection system based on a Beidou satellite according to an embodiment of the present application;
fig. 2 is a schematic right-view diagram of a bridge health detection system based on a Beidou satellite according to an embodiment of the present application;
FIG. 3 is a schematic structural bottom view of a bridge health detection system based on Beidou satellites according to an embodiment of the present application;
FIG. 4 is a schematic perspective view of a bridge pile structure provided by an embodiment of the present application;
FIG. 5 is a schematic perspective view of a health detection assembly according to an embodiment of the present disclosure;
FIG. 6 is a schematic right-view perspective view of a health detection assembly according to an embodiment of the present disclosure;
FIG. 7 is a schematic perspective exploded view of a lift cylinder according to an embodiment of the present disclosure;
FIG. 8 is a perspective view of a support structure provided in an embodiment of the present application;
fig. 9 is a schematic perspective cross-sectional view of an inner frame structure according to an embodiment of the present application.
In the figure: 100 bridge components, 110 bridges, 111 bridges, 120 bridge piles, 121 reinforcing members, 130 vibration sensors, 140 ultrasonic transducers, 141 receivers, 150 processing terminals, 300 health detection components, 310 installation bases, 311 clamping plates, 312 positioning plates, 320 lifting cylinders, 321 lifting rods, 322 extrusion ring plates, 323 extrusion screw rods, 324 reinforcing ribs, 330 GPS satellite positioning instruments, 331 solar panels, 332 connecting plates, 333 electrical accumulators, 340 external threaded rods, 341 installation bases, 342 internal threaded cylinders, 350 laser displacement sensors, 351 installation bases, 352 reinforcing steel bars, 360 box-type fixed inclinometers, 361 bases, 500 bridge body detection components, 510 reinforcing bases, 520 supports, 530 inclination sensors, 540, 541 connecting plates, 542 guide plates, 543 inner frame supporting plates, 550 displacement sensors, 551 downward moving plates and 552 connecting frames.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
Examples
As shown in fig. 1-9, according to the bridge health detection system based on the big dipper satellite of this application embodiment, including bridge subassembly 100, health detection subassembly 300 and pontic detection subassembly 500, health detection subassembly 300 sets up in the both sides of bridge subassembly 100, pontic detection subassembly 500 sets up in the top of bridge subassembly 100, the quantity of health detection subassembly 300 is a plurality of, the last accessory facility of bridge subassembly 100 includes but not limited to bridge deck pavement, drainage waterproof system, anticollision barrier, expansion joint and light illumination etc., health detection subassembly 300 can detect the levelness, gradient and the submergence of bridge subassembly 100 bridge floor, so that the staff can acquire the health information of bridge subassembly 100, improve the safety traffic performance of bridge subassembly 100, pontic detection subassembly 500 can detect the submergence of bridge subassembly 100 bridge floor, can detect the lateral inclination simultaneously, then can detect whether damage appears in the connecting piece in bridge subassembly 100, simultaneously can in time overhaul, and then improve the safety performance of bridge subassembly 100.
As shown in fig. 4-7, in the current bridge detection, the bridge is generally detected regularly and periodically by manpower, and if the bridge is installed in a remote area or a severe environment, the maintenance of workers is very inconvenient and the health data of the bridge cannot be obtained in time;
meanwhile, the sensors are installed on the bridge for detecting the health state of the bridge at present, but under the condition that the sensors are installed, workers are difficult to effectively and quickly correct the reference of the sensors, the sensors cannot be adjusted to be consistent horizontal planes through an external level gauge, the bridge detection precision is greatly reduced, and meanwhile, the labor intensity of operators is greatly increased.
The bridge assembly 100 comprises a bridge 110, bridge piles 120, a vibration sensor 130, ultrasonic transducers 140 and processing terminals 150, wherein a bridge frame 111 is erected at the top of the bridge 110, the bridge piles 120 are arranged at the bottom of the bridge 110, the vibration sensor 130 is arranged at the bottom of the bridge 110, the ultrasonic transducers 140 are arranged at two ends of the bottom of the bridge 110, a receiver 141 is arranged at the center of the bottom of the bridge 110, and the processing terminals 150 are arranged at one side of the top of the bridge 110.
The health detection assembly 300 comprises an installation base platform 310, a lifting cylinder 320, a GPS satellite locator 330, an external thread rod 340, a laser displacement sensor 350 and a box-type fixed inclinometer 360 respectively, wherein the installation base platform 310 is fixedly installed at the corner of the top of the bridge 110 through bolts, a clamping plate 311 is arranged at the bottom of the installation base platform 310, the clamping plate 311 is L-shaped, positioning plates 312 are integrally formed at the left side and the right side of the installation base platform 310, the surface of the positioning plate 312 is fixedly connected with the surface of the bridge 110 through bolts, the lifting cylinder 320 is arranged at the top of the installation base platform 310, a lifting rod 321 is slidably arranged in the inner cavity of the lifting cylinder 320, extrusion screw rods 323 are arranged at the top of the left side and the right side of the lifting cylinder 320 in a penetrating manner, extrusion ring plates 322 are movably connected at one side opposite to the two transverse extrusion screw rods 323 through bearings, reinforcing ribs 324 are integrally formed at the two sides of the lifting cylinder 320, the bottoms of the reinforcing ribs 324 are fixedly connected with the top of the installation base platform 310 through bolts, the stability of the lifting cylinder 320 can be enhanced by arranging the reinforcing ribs 324, the surfaces of the extrusion annular plate 322 and the lifting rod 321 are subjected to anti-slip treatment, the surface of the lifting rod 321 is provided with scale marks, the moving position of the lifting rod 321 can be accurately observed by arranging the scale marks, the other end of the extrusion screw 323 is integrally formed with a handle, a user can conveniently rotate the extrusion annular plate 322 and the GPS satellite positioner 330 on the top of the lifting cylinder 320 by arranging the handle, the bottom of the lifting cylinder 320 is fixedly welded with the top of the mounting base 310, one side of the GPS satellite positioner 330 is provided with the electric storage device 333, the electric storage device 333 is arranged on the top of the lifting rod 321, one side of the lifting cylinder 320 is provided with the solar panel 331, one side of the solar panel 331 is fixedly provided with the connecting plate 332, and one end of the connecting plate 332, which is far away from the solar panel 331, is fixedly connected with the surface of the lifting cylinder 320, the solar panel 331 and the electric storage device 333 are arranged to supply power to the GPS satellite positioning device 330 in real time, the external screw rod 340 and the laser displacement sensor 350 are arranged on one side of the mounting base 310, the clamping plate 311 and the positioning plate 312 are arranged to increase the stability of the mounting base 310, and the mounting base 341 and the mounting base 351 can be fixed at the same time, the outer surface of the external screw rod 340 is provided with the mounting base 341, one end of the mounting base 341 is fixedly connected with the surface of the clamping plate 311, the top of the mounting base 341 is movably embedded with the internal screw cylinder 342 through a bearing, the top of the external screw rod 340 is integrally formed with a limiting disc, the external screw rod 340 can be prevented from being separated from the internal screw cylinder 342 at will by arranging the limiting disc, the inner surface of the internal screw cylinder 342 is in threaded connection with the outer surface of the external screw rod 340, the top of the surface of the internal screw cylinder 342 is fixedly connected with a rotating handle, by arranging the rotating handle, the user can conveniently rotate the cylinder 342, one side of the laser displacement sensor 350 is provided with the mounting base 351, one end of the mounting base 351 is fixedly connected with the surface of the external screw rod 340, the reinforcing bar 351, the box-type laser displacement sensor 360 is arranged on one side of the base 360, and the box-type inclinometer base 360, and the base 360 are stably connected with the oblique bar base 361.
When the health detection assembly 300 is installed, firstly, a worker installs the installation base 310 at the edge of the surface of the bridge 110 and fixes the installation base 310 through a bolt, then the installation base 310 is erected on the installation base 310, then the GPS satellite positioning instrument 330 can be moved upwards to a certain height through the lifting rod 321, then the GPS satellite positioning instrument 330 is adjusted to a certain position through the external horizontal correction equipment and the lifting rod 321, the installation work of the GPS satellite positioning instrument 330 is completed, the laser displacement sensor 350 can be installed on the surface of the installation base 310 and used for measuring the sinking degree of the bridge 110 and the bridge pier 120, the box-type fixed inclinometer 360 is installed at the bottom of the installation base 310 through the external threaded rod 340, and meanwhile, the worker can adjust the position of the box-type fixed inclinometer 360 on the bridge 110 through the external threaded rod 340 so as to reasonably install and adjust the health detection assembly 300;
when the crack of the bridge 110 is detected, the ultrasonic transducers 140 and the receiver 141 are installed on the bridge 110 for ultrasonic detection, the ultrasonic speed testing method is a nondestructive method and can provide information about the concrete quality, the internal structure, the porosity, the compressive strength and the depth and direction of the crack, the working principle of the ultrasonic speed testing method is that the ultrasonic pulse speed is measured, in the ultrasonic test, the surface of a material is in contact with the two ultrasonic transducers 140, no gap exists between the material and the surface, the first ultrasonic transducer 140 sends ultrasonic waves, the second ultrasonic transducer 140 receives the ultrasonic waves, then the transmission time and the speed of the ultrasonic waves are measured through the receiver 141, then ultrasonic testing points are made based on the principle and are respectively subjected to cross-crack and non-cross-crack ultrasonic tests, the testing distance when the first wave is in reverse phase is recorded immediately, finally, the actual sound wave propagation distance and the concrete sound speed of each testing point without cross-crack are solved, and the final testing result is calculated according to a crack depth formula;
thirdly, a plurality of seismic sensors 130 distributed on the bridge 110 can detect seismic data on the bridge 110; laser displacement sensor 350 adopts the sensor of laser phase method measuring distance between sensor and the measured object, has characteristics such as fast, measurement accuracy is high, the product is small, facilitate the use of testing the speed, can monitor the subsidence of bridge pile 120, and box-type fixed inclinometer 360 can measure the structure slope of bridge 110, and its principle is: the box-type fixed inclinometer 360 is arranged on the surface of the bridge 110, the inclination of the bridge 110 is measured for a long time, the installation direction of the box-type fixed inclinometer 360 corresponds to the monitoring direction of the bridge 110 during installation, after the installation is finished, the initial value of the box-type fixed inclinometer 360 is read as the initial state of the bridge 110, the value of the box-type fixed inclinometer 360 is read and compared with the initial value during the long-term monitoring process, and the inclination condition of a structure can be reflected according to the comparison result;
furthermore, when the levelness of the bridge 110 is measured, firstly, a plurality of GPS satellite positioning instruments 330 are distributed on the bridge 110, the processing terminal 150 is installed at one side of the bridge 110, the periphery of the bridge 110 is connected with a reference station receiver through radio, the reference station receiver is used for continuously observing satellites and sending observation data and station measurement information of the satellites to the processing terminal 150 in real time through radio transmission equipment, the GPS satellite positioning instruments 330 receive GPS satellite signals and data transmitted by the reference station through radio receiving equipment, then three-dimensional coordinates of the bridge 110 and the precision thereof, namely coordinate differences Δ X, Δ Y and Δ H between the reference station and the bridge 110 are calculated in real time according to the principle of relative positioning, WGS-84 coordinates of each point obtained by adding the reference coordinates are obtained, plane coordinates X, Y and altitude H of each point of the bridge 110 are obtained through coordinate conversion parameters, and the data are finally transmitted to an equipment terminal where an operator is located, so as to obtain the horizontal position information of the bridge 110.
The bridge detection assembly 500 comprises a reinforcing base 510, a support 520, an inclination sensor 530, an inner frame 540 and a displacement sensor 550, the reinforcing base 510 is arranged on the front side and the rear side of one side of the bridge 110 opposite to the bridge pile 120, the reinforcing base 510 is composed of concrete and steel bars, the support 520 is arranged on the top of the reinforcing base 510, the top of the support 520 is connected with the bottom of the bridge 110, the support 520 is a basin-shaped rubber support, the support 520 is formed by combining steel plates and rubber, the inner frame 540 is arranged on one side of the two opposite sides of the two support 520, connecting plates 541 are arranged on two sides of the inner cavity of the inner frame 540 in a sliding mode, a guide plate 542 is arranged on one side of the two opposite sides of the connecting plates 541, the top of the guide plate 542 is movably connected with the bottom of the bridge 110 through a rotating shaft, supporting plates 543 are integrally formed on the front side and the rear side of the top of the inner frame 540, the top of the supporting plates 543 is movably connected with the bottom of the bridge 110 through the rotating shaft, auxiliary support can be used for supporting the inner frame 540, the inclination sensor 530 is arranged on the inner frame 540, the inner frame 552, the inclination sensor 530 is arranged on one end of the inner frame 541 which moves downwards, the bottom of the inner frame 552, the movable frame 551, the movable frame 552 which moves downwards, and the movable connection plate are arranged on the bottom of the universal shaft 551, and the movable connection plate 552 which moves downwards, and the bottom of the movable connection plate 552 are arranged on the universal connection of the universal connection plate 552, and the universal connection of the universal connection plate 552.
As shown in fig. 8-9, the existing connection between bridge and pier can be divided into fixed type and movable connection through support, and the existing connection through support brings the following advantages: force transfer devices are arranged on the bridge body structure and the bridge pier, so that large loads can be transferred, the bridge body structure can be enabled to generate certain displacement, the bridge pier pressure can be shared, the bridge body pressure can be buffered, and the problems of vibration under the bridge body, inevitable thermal expansion and contraction and the like can be buffered;
but along with long-time use, support on the pier is very easily taken place deformation and sinks the scheduling problem, because of the support installation on the pier is comparatively secret, operating personnel is difficult to regularly detect it, and the impaired data that can't effectual acquisition pier supported, then when support on the pier reaches certain damage degree, the staff is difficult to in time maintain and change it, and it is very easily to cause the pontic to take place pathological change or collapse seriously, exists certain potential safety hazard.
When the sinking degree of the support 520 is detected, the bridge 110 applies pressure to the support 520 for a long time, so that the support 520 is easy to sink, and then no effective support is left around the bridge 110, and the area at the position can sink under stress, and sinks to drive the displacement sensor 550 to move, wherein the displacement of the displacement sensor 550 is related to the movement of the position of an object in the movement process, so that the sinking distance of the bridge 110 can be detected, and further the damage degree of the support 520 can be judged, and because the bridge 110 and the bridge pile 120 are separately connected through the support 520, and the bridge 110 can generate certain displacement, and when the bridge 110 displaces, the inclination sensor 530 can be driven to measure the displacement angle of the bridge 110.
Specifically, this bridge health detection system based on big dipper satellite's theory of operation: when the health detection assembly 300 is installed, firstly, a worker installs the installation base 310 at the edge of the surface of the bridge 110 and fixes the installation base 310 through bolts, then the installation base 310 is erected on the installation base 310, then the GPS satellite positioning instrument 330 can be moved upwards to a certain height through the lifting rod 321, then the GPS satellite positioning instrument 330 is adjusted to a certain position through external horizontal correction equipment and the lifting rod 321, the installation work of the GPS satellite positioning instrument 330 is completed, the laser displacement sensor 350 can be installed on the surface of the installation base 310 and used for measuring the sinking degrees of the bridge 110 and the bridge pier 120, the box-type fixed inclinometer 360 is installed at the bottom of the installation base 310 through the external threaded rod 340, and meanwhile, the worker can adjust the position of the box-type fixed inclinometer 360 on the bridge 110 through the external threaded rod 340 so as to reasonably install and adjust the health detection assembly 300;
when the crack of the bridge 110 is detected, the ultrasonic transducers 140 and the receiver 141 are installed on the bridge 110 for ultrasonic detection, the ultrasonic speed testing method is a nondestructive method and can provide information about the concrete quality, the internal structure, the porosity, the compressive strength and the depth and direction of the crack, the working principle of the ultrasonic speed testing method is that the ultrasonic pulse speed is measured, in the ultrasonic test, the surface of a material is in contact with the two ultrasonic transducers 140, no gap exists between the material and the surface, the first ultrasonic transducer 140 sends ultrasonic waves, the second ultrasonic transducer 140 receives the ultrasonic waves, then the transmission time and the speed of the ultrasonic waves are measured through the receiver 141, then ultrasonic testing points are made based on the principle and are respectively subjected to cross-crack and non-cross-crack ultrasonic tests, the testing distance when the first wave is in reverse phase is recorded immediately, finally, the actual sound wave propagation distance and the concrete sound speed of each testing point without cross-crack are solved, and the final testing result is calculated according to a crack depth formula;
thirdly, a plurality of seismic sensors 130 distributed on the bridge 110 can detect seismic data on the bridge 110; laser displacement sensor 350 adopts the sensor of laser phase method measuring distance between sensor and the measured object, has characteristics such as fast, measurement accuracy is high, the product is small, facilitate the use of testing the speed, can monitor the subsidence of bridge pile 120, and box-type fixed inclinometer 360 can measure the structure slope of bridge 110, and its principle is: the box-type fixed inclinometer 360 is arranged on the surface of the bridge 110, the inclination of the bridge 110 is measured for a long time, during installation, the installation direction of the box-type fixed inclinometer 360 corresponds to the monitoring direction of the bridge 110, after installation is finished, the initial value of the box-type fixed inclinometer 360 is read as the initial state of the bridge 110, during long-term monitoring, the value of the box-type fixed inclinometer 360 is read and compared with the initial value, and the inclination condition of a structural object can be reflected according to the comparison result;
furthermore, when the levelness of the bridge 110 is measured, firstly, a plurality of GPS satellite positioning instruments 330 are distributed on the bridge 110, the processing terminal 150 is installed on one side of the bridge 110, the periphery of the bridge 110 is connected with a reference station receiver through radio, the reference station receiver is used for continuously observing satellites, and transmits observation data and station measurement information thereof to the processing terminal 150 in real time through radio transmission equipment, the GPS satellite positioning instruments 330 receives GPS satellite signals and data transmitted by the reference station through radio receiving equipment, then three-dimensional coordinates of the bridge 110 and the precision thereof, namely coordinate differences Δ X, Δ Y and Δ H between the reference station and the bridge 110 are calculated in real time according to the principle of relative positioning, WGS-84 coordinates of each point obtained by adding the reference coordinates are obtained, plane coordinates X, Y and altitude H of each point of the bridge 110 are obtained through coordinate conversion parameters, and the data are finally transmitted to an equipment terminal where an operator is located, so as to obtain the horizontal position information of the bridge 110;
present bridge and bridge's being connected can be divided into fixed and through support swing joint's form, and the present advantage of connecting the bringing through the support is: force transfer devices are arranged on the bridge body structure and the bridge pier, so that large loads can be transferred, the bridge body structure can be enabled to generate certain displacement, the bridge pier pressure can be shared, the bridge body pressure can be buffered, and the problems of vibration under the bridge body, inevitable thermal expansion and contraction and the like can be buffered;
however, with long-time use, the support on the bridge pier is easy to deform and sink, and the like, and the support on the bridge pier is more secret in installation, so that an operator is difficult to detect the support at regular time, and the damaged data of the support on the bridge pier cannot be effectively acquired;
when detecting the sinking degree of the support 520, the bridge 110 applies pressure to the support 520 for a long time, which easily causes the support 520 to sink, and then the periphery of the bridge 110 is not effectively supported, so that the area at the position can sink under stress, and sink to drive the displacement sensor 550 to move, the displacement of the displacement sensor 550 is related to the movement of the position of an object in the movement process, and then the sinking distance of the bridge 110 can be detected, so that the damage degree of the support 520 can be judged, and because the bridge 110 and the bridge pile 120 are separately connected through the support 520, and the bridge 110 can generate certain displacement, and when the bridge 110 generates displacement, the inclination angle sensor 530 can be driven to measure the displacement angle of the bridge 110.
It should be noted that the specific model specifications of the vibration sensor 130, the ultrasonic transducer 140, the receiver 141, the processing terminal 150, the GPS satellite positioning instrument 330, the solar panel 331, the electric storage device 333, the laser displacement sensor 350, the box-type fixed inclinometer 360, the inclination sensor 530 and the displacement sensor 550 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, and therefore, detailed description is omitted.
The power supply and the principle of the seismoscope 130, the ultrasonic transducer 140, the receiver 141, the processing terminal 150, the GPS satellite positioner 330, the solar panel 331, the electric storage 333, the laser displacement sensor 350, the box-type fixed inclinometer 360, the inclination sensor 530 and the displacement sensor 550 are apparent to those skilled in the art and will not be described in detail herein.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (10)
1. Bridge health detection system based on Beidou satellite is characterized by comprising
(100) The bridge assembly (100) comprises a bridge (110), bridge piles (120), a vibration sensor (130), an ultrasonic transducer (140) and a processing terminal (150), wherein the bridge piles (120) are arranged at the bottom of the bridge (110), the vibration sensor (130) is arranged at the bottom of the bridge (110), the ultrasonic transducer (140) is arranged at two ends of the bottom of the bridge (110), and the processing terminal (150) is arranged at one side of the top of the bridge (110);
health detection subassembly (300), health detection subassembly (300) are respectively including installation base station (310), a lift section of thick bamboo (320), GPS satellite positioning appearance (330), external screw thread pole (340), laser displacement sensor (350) and box-type fixed inclinometer (360), lift section of thick bamboo (320) set up in the top of installation base station (310), GPS satellite positioning appearance (330) set up in the top of a lift section of thick bamboo (320), external screw thread pole (340) and laser displacement sensor (350) all set up in one side of installing base station (310), box-type fixed inclinometer (360) set up in the bottom of external screw thread pole (340).
2. The Beidou satellite based bridge health detection system according to claim 1, wherein a receiver (141) is installed at the center of the bottom of the bridge (110), and a bridge frame (111) is erected at the top of the bridge (110).
3. The Beidou satellite-based bridge health detection system according to claim 1, characterized in that a clamping plate (311) is arranged at the bottom of the installation base station (310), the clamping plate (311) is L-shaped, and positioning plates (312) are integrally formed on the left side and the right side of the installation base station (310).
4. The bridge health detection system based on the Beidou satellite according to claim 1, wherein a lifting rod (321) is slidably arranged in an inner cavity of the lifting cylinder (320), extrusion screws (323) are arranged on the top of the left side and the top of the right side of the lifting cylinder (320) in a penetrating manner, extrusion ring plates (322) are movably connected to one sides of the two transverse extrusion screws (323) through bearings, and reinforcing ribs (324) are integrally formed on two sides of the lifting cylinder (320).
5. The Beidou satellite-based bridge health detection system according to claim 4, characterized in that the surfaces of the extrusion ring plate (322) and the lifting rod (321) are subjected to anti-slip treatment, the surface of the lifting rod (321) is provided with scale marks, and the other end of the extrusion screw (323) is integrally formed with a handle.
6. The bridge health detection system based on the Beidou satellite according to claim 1, wherein an electric storage device (333) is installed on one side of the GPS (330), a solar panel (331) is arranged on one side of the lifting cylinder (320), and a connecting plate (332) is fixedly installed on one side of the solar panel (331).
7. The Beidou satellite-based bridge health detection system according to claim 1, wherein the outer surface of the outer threaded rod (340) is provided with a mounting seat (341), and a limiting disc is integrally formed at the top of the outer threaded rod (340).
8. The Beidou satellite-based bridge health detection system according to claim 7, wherein an internal thread cylinder (342) is movably embedded in the top of the mounting base (341) through a bearing, and a rotating handle is fixedly connected to the top of the surface of the internal thread cylinder (342).
9. The bridge health detection system based on the Beidou satellite is characterized in that an installation table (351) is arranged on one side of the laser displacement sensor (350), and reinforcing steel bars (352) are fixedly connected to the upper side and the lower side of the left side of the installation table (351).
10. The bridge health detection system based on the Beidou satellite is characterized in that a base (361) is arranged at the bottom of the box-type fixed inclinometer (360), and the base (361) is connected with one side, opposite to the box-type fixed inclinometer (360), through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211171674.9A CN115683505A (en) | 2022-09-26 | 2022-09-26 | Bridge health detection system based on Beidou satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211171674.9A CN115683505A (en) | 2022-09-26 | 2022-09-26 | Bridge health detection system based on Beidou satellite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115683505A true CN115683505A (en) | 2023-02-03 |
Family
ID=85063223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211171674.9A Pending CN115683505A (en) | 2022-09-26 | 2022-09-26 | Bridge health detection system based on Beidou satellite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115683505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935581A (en) * | 2023-07-21 | 2023-10-24 | 深圳市天工测控技术有限公司 | Mountain landslide early warning method and system based on multi-sensing monitoring |
-
2022
- 2022-09-26 CN CN202211171674.9A patent/CN115683505A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935581A (en) * | 2023-07-21 | 2023-10-24 | 深圳市天工测控技术有限公司 | Mountain landslide early warning method and system based on multi-sensing monitoring |
| CN116935581B (en) * | 2023-07-21 | 2024-05-03 | 深圳市天工测控技术有限公司 | Mountain landslide early warning method and system based on multi-sensing monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913145B (en) | A kind of crack openings double-deformation monitoring of structures and measuring method | |
| CN202032994U (en) | Device for measuring working deformation of shock isolating supporting seat | |
| CN104567641A (en) | Middle and small span bridge deflection measuring device | |
| CN115683505A (en) | Bridge health detection system based on Beidou satellite | |
| CN104132630A (en) | Long-term deflection monitoring system and method for long-span bridge | |
| CN109208657B (en) | Low-strain quality detection measuring tool and testing method thereof | |
| CN207300237U (en) | The quick monitoring device of pier slope | |
| CN106088171B (en) | A kind of prefabricated pile Horizontal Displacement and pile body stress joint test method | |
| CN105423880A (en) | Method for suspending main cable to measure bridge deflection | |
| CN210374975U (en) | Floor thickness detection device | |
| CN105716511B (en) | Bridge static loading test amount of deflection dial gauge measures attachment device | |
| CN114858112A (en) | River course revetment safety integrated monitoring station and monitoring method thereof | |
| CN105334014A (en) | Adjustable suspended cable method for testing bridge deflection | |
| CN112304227B (en) | Bridge displacement detection device and detection method thereof | |
| CN210533641U (en) | Bridge deflection measuring device | |
| CN111649720A (en) | Device and method for monitoring settlement of working base point of large-gradient tunnel | |
| CN219301562U (en) | River course revetment safety integration monitoring station | |
| Alba et al. | Monitoring of the main spire of the Duomo di Milano | |
| CN114892822B (en) | Friction pendulum support capable of self-displacing and displacing, installation method and judgment resetting method | |
| CN106767904B (en) | Calibrating device of vertical plumb line measurement system | |
| CN212158569U (en) | Monitoring device for settlement of working base point of large-gradient tunnel | |
| CN117268466B (en) | Automatic monitoring system for dam safety | |
| CN117490578B (en) | Bridge displacement measuring device for traffic construction bridge | |
| CN213748228U (en) | Detection apparatus for pier top support embedded hole position | |
| CN220352646U (en) | Anti-overturning reinforcing device for single-column pier bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |