CN117870776A - Bridge pushing real-time detection method and detection device - Google Patents
Bridge pushing real-time detection method and detection device Download PDFInfo
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Abstract
The invention discloses a bridge pushing real-time detection method and device, and relates to the technical field of bridge construction. The bridge pushing real-time detection method comprises the following steps: s01, obtaining basic information of the bridge. According to the invention, through the use of the first positioner and the second positioner, the second positioner can move along the set path range in the working process of the pushing equipment, the safe movement of the second positioner and even the bridge can be ensured through the use of the set path range, when each second positioner moves in the moving path range, the stability of structural deformation data can be ensured when the bridge is pushed, the operation of the pushing equipment is controlled based on the moving path range, and the structural deformation data is limited through the use of the moving path range in the pushing process, so that the structural deformation data is adjusted when the safety threshold is not reached, and the safety in the pushing process is further improved.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a bridge pushing real-time detection method and device.
Background
In the bridge pushing construction, a temporary supporting structure or a pushing pier is firstly respectively built at two sides of a starting point and a finishing point of the bridge, then pushing mechanical equipment is installed on the temporary supporting structure, the bridge is pushed through the equipment, and real-time monitoring is needed in the pushing process to ensure the construction safety so as to be capable of timely adjusting.
In the prior art, in the real-time detection of the bridge pushing, after a certain value exceeds a safety threshold value in the pushing process, an alarm is sent out, so that a worker can adjust the bridge pushing, but the bridge pushing is usually adjusted after the value reaches the safety threshold value, the running state of pushing equipment is required to be adjusted although the value reaches the safety threshold value and the bridge pushing is not influenced, the bridge is heavier, and the safety problem is easily caused in the bridge pushing process due to the overlarge adjustment degree.
Disclosure of Invention
The invention aims to provide a bridge pushing real-time detection method and a bridge pushing real-time detection device, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the bridge pushing real-time detection method comprises the following steps:
s01, obtaining basic information of the bridge, wherein the basic information comprises the weight, the size, the design load and the resonance frequency of the bridge, and establishing an early warning module based on the basic information of the bridge, and establishing a safety threshold value in the early warning module;
s02, acquiring real-time data of the bridge based on different types of sensors, wherein the real-time data comprises structural deformation data and vibration data of the bridge, and simultaneously recording position data of the different types of sensors on the bridge;
s03, installing a plurality of first positioners on the constructed bridge and the supporting piers, installing a plurality of second positioners on the bridge needing to be pushed, wherein the signals transmitted back between the first positioners and the second positioners have obvious differences, establishing a receiver at a set position, and acquiring the relative positions between the constructed bridge and the bridge needing to be pushed and the movement of the bridge needing to be pushed based on the analysis signals, thereby acquiring the three-dimensional movement data of the bridge;
s04, processing the three-dimensional movement data, the structural deformation data and the vibration data of the bridge in a combined way, correcting the data in time, and synchronizing the three-dimensional movement data, the structural deformation data and the vibration data in time to ensure that different data correspond to the same bridge state at the same time point;
s05, based on the first positioner, the computer establishes a predicted moving path range of the second positioner in the bridge pushing, and establishes different predicted moving path ranges for each second positioner, wherein the predicted moving path ranges comprise a normal area and an adjustment area, the second positioner is allowed to move in the normal area, and when the second positioner moves to the adjustment area, the computer gives an alarm and controls the pushing equipment to operate based on the moving path ranges;
s06, analyzing structural deformation data and vibration data in combination with position data of different types of sensors on the bridge, and integrating data of the sensors of the same model respectively, wherein the sensors of the same model represent that the types of data detected by the sensors are the same;
s07, analyzing the integrated data, judging whether the numerical value in the data exceeds a threshold value, and if so, sending out an alarm by the early warning module.
Furthermore, the method for establishing the moving path range comprises the steps of obtaining positions between all the first positioners and all the second positioners and positions between the first positioners and the second positioners through the first positioners and the second positioners, wherein the positions between the first positioners are unchanged, the positions between the second positioners are determined, the first positioners are respectively fixed on a built bridge and a supporting pier and are installed, a moving path is generated based on the acting direction of the moving end of the pushing device, the limiting inclination range in the pushing process of the bridge is increased in the moving path, the maximum strain structure range in the pushing process of the bridge is increased, the moving path range is generated, and the optimal moving path is generated according to the center of the moving path range.
Furthermore, data integration is carried out on detection data collected by different types of sensors, a three-dimensional model of a bridge is built, for sensor data of the same model, the sensor data are combined with position data of the sensor on the bridge, the data received by the sensor are displayed in the three-dimensional model of the bridge, further simulation of the data is realized in the three-dimensional model of the bridge, the propagation process of the data in the three-dimensional model of the bridge is analyzed, a Kalman filter is adopted to analyze vibration data and position data of the sensor combining with collected vibration data, and a finite element analysis model is adopted to analyze structural deformation data and position data of the sensor combining with collected structural deformation data.
Furthermore, a plurality of second positioners are installed on the bridge to be pushed, the plurality of second positioners sequentially send signals, the time range of the sent signals is 100-200 milliseconds, the receiver analyzes the positions of the second positioners when receiving the signals, the plurality of first positioners are installed on the bridge to be constructed according to the serial number sequence or the position sequence, the plurality of second positioners sequentially send signals, the time length of the sent signals is 100-200 milliseconds, when pushing operation is not carried out, the first positioners and the second positioners sequentially send signals, the receiver receives the signals, and then the mutual positions among the first positioners and the mutual positions among the second positioners are determined.
Still further, the structural deformation data includes displacement data, strain data, bending moment data, and inclination data, and the vibration data includes acceleration degree, velocity data, frequency data, and energy data.
Furthermore, the position data of the sensors of different types on the bridge are combined with a plurality of third positioners through the sensors of different types, so that the functions of the sensors and the positioning function are realized, when pushing is not performed, the third positioners send signals in sequence, the distance between each third positioner and each second positioner is determined, and then the position data of the sensors on the bridge is obtained.
The utility model provides a bridge top pushes away real-time detection equipment, includes the computer, computer and different grade type sensor electric connection for receive the data that different grade type sensor returned, the computer electricity is connected with the receiver, the receiver is used for receiving the signal that the locator returned, the display screen is used for the visual show of three-dimensional removal data, structure deformation data and vibration data to be connected with to the electricity, the electricity is connected with the siren.
Compared with the prior art, the invention has the beneficial effects that:
according to the bridge pushing real-time detection method and the bridge pushing real-time detection device, the first positioner and the second positioner are used, so that the second positioner can move along the set path range in the working process, the second positioner and even the bridge can be ensured to safely move through the use of the set path range, the second positioners can ensure the stability of structural deformation data when the bridge is pushed when moving in the moving path range, the operation of the pushing device is controlled based on the moving path range in the pushing process, the structural deformation data is limited through the use of the moving path range, and the structural deformation data is adjusted when the safety threshold value is not reached, so that the safety in the pushing process is improved.
Meanwhile, the pushing equipment is controlled to move based on the moving path range, so that the bridge moves, the second positioners move, and meanwhile, when one of the second positioners moves to an adjusting area, the pushing equipment can automatically adjust, so that all the second positioners can be guaranteed to be in the set moving path range when moving, the use of the moving path range sets how the bridge moves, and fine adjustment of the pushing equipment is realized when adjusting, and safety in the pushing process of the bridge is further guaranteed.
The three-dimensional model of the bridge is built based on the second positioner through the arrangement of the combination of the sensors of different types and the third positioner, data received by the sensors of different types can act on the three-dimensional model through the third positioner, the same type of sensor is realized through the third positioner, and the data received by the sensor are simulated on the three-dimensional model, so that a computer can accurately analyze the condition of the data on the three-dimensional model, and an early warning module can accurately analyze analog values, and early warning is realized.
Drawings
FIG. 1 is a diagram of a real-time detection method according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present invention provides a technical solution: the bridge pushing real-time detection method comprises the following steps:
s01, basic information of the bridge is obtained, the basic information comprises the weight, the size, the design load and the resonance frequency of the bridge, an early warning module is built based on the basic information of the bridge, and a safety threshold value is built in the early warning module;
s02, acquiring real-time data of the bridge based on different types of sensors, wherein the real-time data comprises structural deformation data and vibration data of the bridge, and simultaneously recording position data of the different types of sensors on the bridge;
s03, installing a plurality of first positioners on the constructed bridge and the supporting piers, installing a plurality of second positioners on the bridge needing to be pushed, wherein the signals transmitted back between the first positioners and the second positioners have obvious differences, establishing a receiver at a set position, and acquiring the relative positions between the constructed bridge and the bridge needing to be pushed and the movement of the bridge needing to be pushed based on the analysis signals, thereby acquiring the three-dimensional movement data of the bridge;
s04, processing the three-dimensional movement data, the structural deformation data and the vibration data of the bridge in a combined way, correcting the data in time, and synchronizing the three-dimensional movement data, the structural deformation data and the vibration data in time to ensure that different data correspond to the same bridge state at the same time point;
s05, based on the first positioner, the computer establishes a predicted moving path range of the second positioner in the bridge pushing, and establishes different predicted moving path ranges for each second positioner, wherein the predicted moving path ranges comprise a normal area and an adjustment area, the second positioner is allowed to move in the normal area, and when the second positioner moves to the adjustment area, the computer gives an alarm and controls the pushing equipment to operate based on the moving path ranges;
s06, analyzing structural deformation data and vibration data in combination with position data of different types of sensors on the bridge, and integrating data of the sensors of the same model respectively, wherein the sensors of the same model represent that the types of data detected by the sensors are the same;
s07, analyzing the integrated data, judging whether the numerical value in the data exceeds a threshold value, and if so, sending out an alarm by the early warning module.
The method for establishing the moving path range comprises the steps of obtaining positions between all the first positioners and all the second positioners through the first positioners and the second positioners, enabling the positions between the first positioners and the second positioners to be unchanged, enabling the positions between the second positioners to be determined, enabling the first positioners to be respectively fixed on a built bridge and a supporting pier and installed, generating a moving path based on the acting direction of the moving end of a pushing device, increasing the limiting inclined range in the pushing process of the bridge in the moving path, increasing the maximum strain structural range in the pushing process of the bridge, generating the moving path range, and generating the optimal moving path according to the center of the moving path range aiming at the moving path range.
The method comprises the steps of integrating data of detection data collected by different types of sensors, establishing a three-dimensional model of a bridge, combining sensor data of the same model with position data of the sensor on the bridge, displaying the data received by the sensor in the three-dimensional model of the bridge, further realizing the simulation of the data in the three-dimensional model of the bridge, analyzing the propagation process of the data in the three-dimensional model of the bridge, analyzing vibration data by adopting a Kalman filter and combining the position data of the sensor for collecting the vibration data, and analyzing structural deformation data by adopting a finite element analysis model and combining the position data of the sensor for collecting the structural deformation data.
The bridge to be pushed is provided with a plurality of second positioners, the second positioners sequentially send out signals in sequence, the time range of the signals is 100-200 milliseconds, the position of the second positioners is analyzed when the receiver receives the signals, the first positioners are sequentially installed on the bridge to be pushed according to the serial number sequence or the position sequence, the second positioners sequentially send out signals in sequence, the time length of the signals is 100-200 milliseconds, when pushing operation is not carried out, the first positioners and the second positioners sequentially send out signals, the receiver receives the signals, and then the mutual position among the first positioners and the mutual position among the second positioners are determined.
The structural deformation data includes displacement data, strain data, bending moment data, and inclination data, and the vibration data includes acceleration degree, speed data, frequency data, and energy data.
The position data of the sensors of different types on the bridge are combined through the sensors of different types and the plurality of No. three positioners, so that the functions of the sensors and the positioning function are realized, when pushing is not performed, the No. three positioners sequentially send out signals, the distance between each No. three positioner and each No. two positioner is determined, and the position data of the sensors on the bridge is further obtained.
The bridge pushing real-time detection device comprises a computer, wherein the computer is electrically connected with sensors of different types and is used for receiving data transmitted by the sensors of different types, the computer is electrically connected with a receiver, the receiver is used for receiving signals transmitted by a positioner, the computer is electrically connected with a display screen, the display screen is used for displaying three-dimensional movement data, structural deformation data and vibration data in a visualized mode, and the computer is electrically connected with an alarm.
The information comprises the weight, the size, the design load and the resonance frequency of the bridge, a theoretical dangerous value in the pushing process is established based on the basic information, the theoretical dangerous value indicates that when one data, such as the vibration frequency of the bridge in the pushing process, reaches the theoretical dangerous value of the frequency, the bridge is caused to have a problem, under the theoretical dangerous value, a safety threshold is designed, when a certain value of the bridge in the pushing process reaches the safety threshold, the value is closer to the theoretical dangerous value, but the pushing process can be corrected at the moment, the value is reduced, the theoretical dangerous value is further ensured to be far away, the bridge pushing operation can be safely carried out, and an alarm can be given when the certain value reaches the safety threshold or when the moving path of the second positioner reaches an adjustment area, so that workers are reminded.
The optical signals transmitted back between the first positioner and the second positioner have obvious difference in frequency spectrum, so that the first positioner and the second positioner can be conveniently distinguished by the receiver and the corresponding processor, meanwhile, the optical signals transmitted back between the first positioner and the second positioner can be invisible optical signals, when pushing operation is not carried out, the positioners sequentially transmit signals, the time for transmitting the signals is controlled, the positioning of the position of a bridge can be realized, the positioners sequentially transmit signals, the mutual interference of the signals can be avoided, the position and the distance between the positioners of the same type can be determined, when the sensors of different types are installed, due to the fact that installation errors and the like exist, the sensors of different types are only installed in a designated area when installed, the positions of the sensors can be definitely acted on a three-dimensional model based on the sensor of the third positioner, the positions of the sensors are at least provided with three receivers when the receivers are used, and the positions of the receivers can be definitely positioned through the positions of the receivers in the reverse direction, and the position difference between the positions of the received signals can be definitely determined when the receivers are located.
Generating a moving path range of the second positioner based on the position of the first positioner and the distance and the position between the first positioner and the second positioner, wherein the moving path range can limit the movement of the second positioner, the second positioner can move along a set path range in the working process by using the first positioner and the second positioner, the safe movement of the second positioner and even a bridge can be ensured by using the set path range, the stability of structural deformation data can be ensured when the bridge moves in the moving path range, the operation of the pushing device is controlled based on the moving path range, and the structural deformation data is limited by using the moving path range in the pushing process, so that the structural deformation data can be adjusted when the safety threshold is not reached, and the safety in the pushing process is improved; the operation of pushing equipment is controlled based on the moving path range, the pushing equipment enables the bridge to move, the second positioners move, meanwhile, when one of the second positioners moves to an adjusting area, the pushing equipment can automatically adjust, so that all the second positioners can be guaranteed to be in the set moving path range when moving, the use of the moving path range sets how the bridge moves, and meanwhile, fine adjustment of the pushing equipment is achieved when adjusting, so that safety in the pushing process of the bridge is guaranteed, the condition of triggering an alarm can be reduced as long as all the second positioners are kept in the moving path range in the moving process, meanwhile, the second positioners are enabled to be always coincident with the optimal moving path in the moving process, and safety in the pushing process can be guaranteed.
The structural deformation data comprise displacement data, strain data, bending moment data and inclination data, the displacement data represent the position change of the bridge in space, the strain data represent the deformation degree of the bridge, the longitudinal strain, the transverse strain and the like, the bending moment data represent the bending condition of the bridge under the action of load, the inclination data represent the inclination degree of the bridge, the horizontal unbalance and the vertical unbalance of the bridge can be indicated, the vibration data comprise acceleration data, speed data, frequency data and energy data, the acceleration data represent the acceleration change of the bridge in different directions, the acceleration data represent the speed change of the bridge in different directions, the frequency data represent the frequency of bridge vibration, the energy data represent the energy distribution condition of bridge vibration, the third positioner is combined with sensors of different models, and when the bridge data are detected, the positions of the sensors are determined, and the positions of the sensors on the sensors are determined, so that the subsequent analysis is facilitated.
The finite element analysis is a common structural analysis method, can simplify the complex structural problem into a finite number of units, solves the parameters such as stress, deformation and the like of each unit through numerical calculation, finally obtains the stress distribution and deformation condition of the whole structure, is a computer-aided engineering analysis method and is widely applied to the fields such as engineering design, material mechanics, fluid mechanics, heat conduction and the like, the finite element analysis model is a calculation model established on the basis of the finite element method, and the mechanical behavior of each small unit and the response of the whole structure are solved by utilizing the numerical method through discrete continuous physical bodies into a finite number of small units, so that the actual structure is analyzed and optimized. Then discretizing the model, namely dividing the model into a plurality of small units, solving an equation in each small unit to obtain information such as strain, stress and the like of the unit, and finally obtaining response and stress distribution of the whole structure by combining results of the small units, wherein in practical application, a finite element analysis model can be used for analyzing mechanical behaviors and stress conditions of various engineering structures; the Kalman filter is a commonly used state estimation algorithm, the state of a system can be estimated in real time by fusing sensor measurement data and a system model, and in bridge monitoring, the Kalman filter can be used for estimating the state of a bridge, including parameters such as displacement, speed, acceleration and the like, so that the real-time monitoring of the health condition of a bridge structure is realized; the method comprises the steps of integrating data of detection data collected by different types of sensors, establishing a three-dimensional model of a bridge, for the sensor data of the same model, combining the position data of the sensor on the bridge, displaying the data received by the sensor in the three-dimensional model of the bridge, further realizing the simulation of the data in the three-dimensional model of the bridge, analyzing the propagation process of the data in the three-dimensional model of the bridge, for example, when analyzing the frequency of the bridge in the pushing process, installing a plurality of sensors for collecting the bridge frequency and a fixed three-dimensional sensor on the bridge, displaying the position of the sensors for collecting the bridge frequency on the three-dimensional model, collecting the frequency vibration condition of the contact position of the sensor, and because of correction, enabling the frequency data to be synchronous in time, analyzing and expanding to the whole bridge three-dimensional model, realizing the simulation of the vibration frequency of the whole bridge, setting a frequency threshold, and sending an alarm when the vibration frequency of the whole bridge three-dimensional model exceeds the frequency threshold; the three-dimensional model of the bridge is built based on the second positioner through the arrangement of the combination of the sensors of different types and the third positioner, data received by the sensors of different types can act on the three-dimensional model through the third positioner, the same type of sensor is realized through the third positioner, and the data received by the sensor are simulated on the three-dimensional model, so that a computer can accurately analyze the condition of the data on the three-dimensional model, and an early warning module can accurately analyze analog values, and early warning is realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended embodiments and equivalents thereof.
Claims (7)
1. The bridge pushing real-time detection method is characterized by comprising the following steps of:
s01, obtaining basic information of the bridge, wherein the basic information comprises the weight, the size, the design load and the resonance frequency of the bridge, and establishing an early warning module based on the basic information of the bridge, and establishing a safety threshold value in the early warning module;
s02, acquiring real-time data of the bridge based on different types of sensors, wherein the real-time data comprises structural deformation data and vibration data of the bridge, and simultaneously recording position data of the different types of sensors on the bridge;
s03, installing a plurality of first positioners on the constructed bridge and the supporting piers, installing a plurality of second positioners on the bridge needing to be pushed, wherein the signals transmitted back between the first positioners and the second positioners have obvious differences, establishing a receiver at a set position, and acquiring the relative positions between the constructed bridge and the bridge needing to be pushed and the movement of the bridge needing to be pushed based on the analysis signals, thereby acquiring the three-dimensional movement data of the bridge;
s04, processing the three-dimensional movement data, the structural deformation data and the vibration data of the bridge in a combined way, correcting the data in time, and synchronizing the three-dimensional movement data, the structural deformation data and the vibration data in time to ensure that different data correspond to the same bridge state at the same time point;
s05, based on the first positioner, the computer establishes a predicted moving path range of the second positioner in the bridge pushing, and establishes different predicted moving path ranges for each second positioner, wherein the predicted moving path ranges comprise a normal area and an adjustment area, the second positioner is allowed to move in the normal area, and when the second positioner moves to the adjustment area, the computer gives an alarm and controls the pushing equipment to operate based on the moving path ranges;
s06, analyzing structural deformation data and vibration data in combination with position data of different types of sensors on the bridge, and integrating data of the sensors of the same model respectively, wherein the sensors of the same model represent that the types of data detected by the sensors are the same;
s07, analyzing the integrated data, judging whether the numerical value in the data exceeds a threshold value, and if so, sending out an alarm by the early warning module.
2. The bridge pushing real-time detection method according to claim 1, wherein the method comprises the following steps: according to the method for establishing the moving path range, positions between all the first positioners and all the second positioners and positions between the first positioners and the second positioners are obtained through the first positioners and the second positioners, the positions of the first positioners and the positions between the second positioners are unchanged, the positions between the second positioners are determined, the first positioners are respectively fixed on a built bridge and a supporting pier and are installed, a moving path is generated based on the acting direction of the moving end of the pushing device, the limiting inclined range in the pushing process of the bridge is increased in the moving path, the maximum strain structural range in the pushing process of the bridge is increased, the moving path range is generated, and the optimal moving path is generated according to the center of the moving path range aiming at the moving path range.
3. The bridge pushing real-time detection method according to claim 1, wherein the method comprises the following steps: the method comprises the steps of integrating data of detection data collected by different types of sensors, establishing a three-dimensional model of a bridge, combining sensor data of the same model with position data of the sensor on the bridge, displaying the data received by the sensor in the three-dimensional model of the bridge, further realizing the simulation of the data in the three-dimensional model of the bridge, analyzing the propagation process of the data in the three-dimensional model of the bridge, analyzing vibration data by adopting a Kalman filter and combining the position data of the sensor for collecting the vibration data, and analyzing structural deformation data by adopting a finite element analysis model and combining the position data of the sensor for collecting the structural deformation data.
4. The bridge pushing real-time detection method according to claim 1, wherein the method comprises the following steps: the bridge to be pushed is provided with a plurality of second positioners, the plurality of second positioners sequentially send out signals according to the sequence, the time range of sending out signals is 100-200 milliseconds, when a receiver receives signals, the positions of the second positioners are analyzed, the plurality of first positioners are installed on the bridge to be pushed according to the sequence or the position sequence, the plurality of second positioners sequentially send out signals according to the sequence, the time length of sending out signals is 100-200 milliseconds, when pushing operation is not carried out, the first positioners and the second positioners sequentially send out signals, and the receiver receives signals to further determine the mutual positions among the first positioners and the mutual positions among the second positioners.
5. The bridge pushing real-time detection method according to claim 1, wherein the method comprises the following steps: the structural deformation data includes displacement data, strain data, bending moment data, and inclination data, and the vibration data includes acceleration degree, velocity data, frequency data, and energy data.
6. The bridge pushing real-time detection method according to claim 1, wherein the method comprises the following steps: the position data of the sensors of different types on the bridge are combined through the sensors of different types and the plurality of No. three positioners, so that the functions of the sensors and the positioning function are realized, when pushing is not performed, the No. three positioners sequentially send out signals, the distance between each No. three positioner and each No. two positioner is determined, and the position data of the sensors on the bridge is further obtained.
7. The utility model provides a bridge pushes away real-time detection equipment, includes computer, its characterized in that: the computer is electrically connected with the sensors of different types and is used for receiving data transmitted back by the sensors of different types, the computer is electrically connected with a receiver, the receiver is used for receiving signals transmitted back by the positioner, the computer is electrically connected with a display screen, the display screen is used for displaying three-dimensional movement data, structural deformation data and vibration data in a visualized mode, and the computer is electrically connected with an alarm.
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