Method, system, electronic device and storage medium for detecting the line shape of an arch ring of an arch bridge

Abstract

This application provides a method, system, electronic device, and storage medium for detecting the arch shape of an arch bridge, including: acquiring deformation data (ZLCD) of the main beam pier support of the arch bridge under test at the pier using a photoelectric deflectometer. t (i); Obtain the horizontal inclination change value θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula DDCD t (i)=L(i)+L(i)×a i ×ΔT(i) is used to obtain the real-time axial length of the arch column of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The material expansion coefficient of each pier is used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula H. t (i)=f(H0(i),ZLCD t (i),θ(i),DDCD t (i)) Obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring. This solves the problems of traditional measurement methods, such as the inability to measure the curvature, inconvenience of base point installation, and error accumulation.

Description

Technical Field

[0001] This application belongs to the field of arch bridge deformation detection, and in particular relates to methods, systems, electronic devices and storage media for arch bridge arch ring line detection. Background Technology

[0002] As arch bridges enter the later stages of operation and are subjected to harsh external environmental conditions, the problem of long-term deflection becomes increasingly significant with the increase in service life, affecting the normal function and safety of the structure to a certain extent. The arch alignment is a crucial indicator for assessing the overall structural performance of a bridge. To address the challenge of measuring arch alignment, it is necessary not only to deeply consider this technical difficulty from the perspectives of design, construction, and operation, but also to develop effective monitoring technologies and scientific evaluation methods for the arch alignment status of arch bridges, thereby understanding the bridge's operational condition and enhancing structural safety and durability.

[0003] Currently, there are two main types of traditional line measurement techniques: 1. Direct measurement techniques: These mostly use total stations, static levels, and photoelectric deflectometers to determine the elevation of key points and then fit and plot the line shape. Total stations are suitable for collecting data from a limited number of feature points on the arch ring during inspection, but are unsuitable for monitoring needs. Traditional static levels and photoelectric deflectometers have limited ranges and are only applicable within straight sections, making it impossible to directly measure the arch ring's bending line shape with limited equipment. Measuring by decomposing bending segments would require an immeasurable amount of equipment and the establishment of measurement base points (fixed points). However, the geographical conditions at the arch foot, where the fixed points are located, are extremely difficult to select due to challenging terrain. 2. Indirect measurement techniques: These measure indicators such as strain distribution and acceleration sensors, and then use mathematical methods to transfer these indicators based on the characteristics of mechanical behavior, thereby obtaining the displacement. While this method offers high accuracy, it requires high-frequency measurement equipment and relies on a bridge theoretical model for calculation. As the actual operational status of the bridge changes, significant error accumulation can occur. Summary of the Invention

[0004] The main objective of this invention is to provide a method, system, electronic device, and storage medium for detecting the arch shape of an arch bridge, which solves the problems of traditional measurement methods, such as the inability to measure the curvature, inconvenient installation of base points, and error accumulation.

[0005] Firstly, a method for detecting the arch shape of an arch bridge is provided, the method comprising:

[0006] Deformation data of the main beam pier support of the arch bridge under test was obtained using a photoelectric deflectometer. t (i);

[0007] The change in the horizontal inclination angle θ(i) of the arch ring is obtained by an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested.

[0008] According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The coefficient of material expansion for each bridge pier;

[0009] The deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into the preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0010] In one possible implementation, the deformation data ZLCD of the main beam pier support of the arch bridge to be tested is obtained at the pier of the arch bridge to be tested using a photoelectric deflectometer. t (i) includes:

[0011] The coordinates of the main beam pier support after deformation were obtained using a photoelectric deflectometer. );

[0012] According to the formula and the initial coordinates (x) of the main beam pier support. a y a Obtain the deformation data .

[0013] In another possible implementation, the formula is... Obtaining the real-time axial length of the arch column of the arch bridge to be tested includes:

[0014] The temperature change value ΔT(i) of the arch column structure is obtained at the bottom of the arch column pier of the arch bridge to be tested using a temperature sensor.

[0015] Substitute the ΔT(i) into the Obtain the real-time axial length of the column on the arch.

[0016] In another possible implementation, the deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into a preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, including:

[0017] According to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

[0018] Secondly, a system for detecting the arch shape of an arch bridge is provided, the system comprising:

[0019] The deformation data acquisition module is used to acquire deformation data of the main beam pier supports of the arch bridge under test using a photoelectric deflectometer. t (i);

[0020] The horizontal inclination angle change value acquisition module is used to acquire the horizontal inclination angle change value θ(i) of the arch ring by an inclination meter installed at the bottom section of the arch column pier of the arch bridge to be tested.

[0021] The module for obtaining the real-time axial length of the arch-supported column is used to obtain the length of the column according to the formula. Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The coefficient of material expansion for each bridge pier;

[0022] The arch current coordinate acquisition module is used to input the deformation data, the change value of the horizontal inclination angle, and the real-time axial length of the columns on the arch into a preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0023] In one possible implementation, the deformation data ZLCD of the main beam pier support of the arch bridge to be tested is obtained at the pier of the arch bridge to be tested using a photoelectric deflectometer. t (i) includes:

[0024] The coordinates of the main beam pier support after deformation were obtained using a photoelectric deflectometer. );

[0025] According to the formula and the initial coordinates (x) of the main beam pier support. a y a Obtain the deformation data .

[0026] In another possible implementation, the formula is... Obtaining the real-time axial length of the arch column of the arch bridge to be tested includes:

[0027] The temperature change value ΔT(i) of the arch column structure is obtained at the bottom of the arch column pier of the arch bridge to be tested using a temperature sensor.

[0028] Substitute the ΔT(i) into the Obtain the real-time axial length of the column on the arch.

[0029] In another possible implementation, the deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into a preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, including:

[0030] According to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

[0031] Thirdly, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for detecting the arch line shape of an arch bridge as provided in the first aspect.

[0032] Fourthly, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the method for detecting the arch shape of an arch bridge as provided in the first aspect. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0034] Figure 1 A flowchart of a method for detecting the arch shape of an arch bridge according to an embodiment of the present invention;

[0035] Figure 2 This is a structural diagram of a system for detecting the arch shape of an arch bridge according to an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the physical structure of an electronic device according to the present invention.

[0037] Specific implementation method

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar modules or modules having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting the invention.

[0039] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, modules, components, and / or groups thereof. It should be understood that when we say a module is “connected” or “coupled” to another module, it can be directly connected or coupled to the other module, or there may be an intermediate module. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the modules and all combinations thereof of one or more associated listed items.

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the implementation of this application will be described in further detail below with reference to the accompanying drawings.

[0041] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0042] like Figure 1 The diagram shows a flowchart of a method for detecting the arch shape of an arch bridge according to an embodiment of the present invention. The method includes:

[0043] Step 101: Obtain deformation data (ZLCD) of the main beam pier support of the arch bridge under test using a photoelectric deflectometer. t (i);

[0044] Step 102: Obtain the horizontal inclination change value θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested.

[0045] Step 103, according to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The coefficient of material expansion for each bridge pier;

[0046] Step 104: Substitute the deformation data, the change in horizontal inclination angle, and the real-time axial length of the column on the arch into the preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0047] In this embodiment of the invention, the deformation formula for the key points of the arch ring is: Where H0(i) are the initial coordinates of the key points of the arch ring, and ZLCD t (i) represents the deformation data of key points on the main beam pier, where θ(i) is the horizontal inclination angle of the arch ring after deformation, DDCD t (i) The real-time axial length of the column on the arch after deformation.

[0048] Specifically, the deformation data ZLCD of the main beam pier support of the arch bridge to be tested is obtained at the pier of the arch bridge under test using a photoelectric deflectometer. t (i) includes:

[0049] The coordinates of the main beam pier support after deformation were obtained using a photoelectric deflectometer. );

[0050] According to the formula and the initial coordinates (x) of the main beam pier support. a y a Obtain the deformation data .

[0051] In this embodiment of the invention, the initial coordinates (x) of the main beam pier support point a y a ) is a known quantity, while the coordinates of the deformed point are ( The data can be obtained by measuring with a photoelectric deflectometer installed at the bridge pier, and finally obtained through the deformation formula. Deformation data can be obtained. .

[0052] Wherein, according to the formula Obtaining the real-time axial length of the arch column of the arch bridge to be tested includes:

[0053] The temperature change value ΔT(i) of the arch column structure is obtained at the bottom of the arch column pier of the arch bridge to be tested using a temperature sensor.

[0054] Substitute the ΔT(i) into the Obtain the real-time axial length of the column on the arch.

[0055] The deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into a preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, including:

[0056] According to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

[0057] In this embodiment of the invention, deformation data ZLCD of the main beam pier support of the arch bridge under test is obtained at the pier of the arch bridge under test using a photoelectric deflectometer. t (i); Obtain the change in the horizontal inclination angle θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The material expansion coefficients of each pier are used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula. The current coordinates of the key points of the arch ring after deformation are obtained, where H0(i) is the initial coordinate of the key points of the arch ring. This solves the problems of traditional measurement methods, such as the inability to measure the curvature, inconvenience of base point installation, and error accumulation.

[0058] like Figure 2 The diagram shown is a structural diagram of a system for detecting the arch shape of an arch bridge according to an embodiment of the present invention. The system includes:

[0059] Deformation data acquisition module 201 is used to acquire deformation data ZLCD of the main beam pier support of the arch bridge under test at the pier of the arch bridge under test using a photoelectric deflectometer. t (i);

[0060] The horizontal inclination angle change value acquisition module 202 is used to acquire the horizontal inclination angle change value θ(i) of the arch ring by an inclination meter installed at the bottom section of the arch column pier of the arch bridge to be tested.

[0061] The real-time axial length acquisition module 203 for the arch column is used to obtain the axial length of the column according to the formula. Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The coefficient of material expansion for each bridge pier;

[0062] The arch current coordinate acquisition module 204 is used to input the deformation data, the change value of the horizontal inclination angle, and the real-time axial length of the column on the arch into a preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0063] In this embodiment of the invention, the deformation formula for the key points of the arch ring is: Where H0(i) are the initial coordinates of the key points of the arch ring, and ZLCD t (i) represents the deformation data of key points on the main beam pier, where θ(i) is the horizontal inclination angle of the arch ring after deformation, DDCD t(i) The real-time axial length of the column on the arch after deformation.

[0064] Specifically, the deformation data ZLCD of the main beam pier support of the arch bridge to be tested is obtained at the pier of the arch bridge under test using a photoelectric deflectometer. t (i) includes:

[0065] The coordinates of the main beam pier support after deformation were obtained using a photoelectric deflectometer. );

[0066] According to the formula and the initial coordinates (x) of the main beam pier support. a y a Obtain the deformation data .

[0067] In this embodiment of the invention, the initial coordinates (x) of the main beam pier support point a y a ) is a known quantity, while the coordinates of the deformed point are ( The data can be obtained by measuring with a photoelectric deflectometer installed at the bridge pier, and finally obtained through the deformation formula. Deformation data can be obtained. .

[0068] Wherein, according to the formula Obtaining the real-time axial length of the arch column of the arch bridge to be tested includes:

[0069] The temperature change value ΔT(i) of the arch column structure is obtained at the bottom of the arch column pier of the arch bridge to be tested using a temperature sensor.

[0070] Substitute the ΔT(i) into the Obtain the real-time axial length of the column on the arch.

[0071] The deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into a preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, including:

[0072] According to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

[0073] In this embodiment of the invention, deformation data ZLCD of the main beam pier support of the arch bridge under test is obtained at the pier of the arch bridge under test using a photoelectric deflectometer. t (i); Obtain the change in the horizontal inclination angle θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The material expansion coefficients of each pier are used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula. The current coordinates of the key points of the arch ring after deformation are obtained, where H0(i) is the initial coordinate of the key points of the arch ring. This solves the problems of traditional measurement methods, such as the inability to measure the curvature, inconvenience of base point installation, and error accumulation.

[0074] Figure 3 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 3 As shown, the electronic device may include: a processor 301, a communication interface 302, a memory 303, and a communication bus 304, wherein the processor, communication interface, and memory communicate with each other through the communication bus. The processor can call logical instructions in the memory to execute a method for detecting the arch shape of an arch bridge. This method includes: acquiring deformation data ZLCD of the main beam pier support of the arch bridge under test at the pier of the arch bridge under test using a photoelectric deflectometer. t (i); Obtain the change in the horizontal inclination angle θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The material expansion coefficients of each pier are used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0075] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0076] On the other hand, embodiments of the present invention also provide a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, and when the program instructions are executed by a computer, the computer is able to execute the method for detecting the arch shape of an arch bridge provided in the above-described method embodiments, the method including: acquiring deformation data ZLCD of the main beam pier support of the arch bridge to be detected at the pier of the arch bridge to be detected using a photoelectric deflectometer. t (i); Obtain the change in the horizontal inclination angle θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and α i The material expansion coefficients of each pier are used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0077] In another aspect, embodiments of the present invention also provide a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the method for detecting the arch shape of an arch bridge provided in the above embodiments. The method includes: acquiring deformation data ZLCD of the main beam pier support of the arch bridge under test at the pier of the arch bridge under test using a photoelectric deflectometer. t (i); Obtain the change in the horizontal inclination angle θ(i) of the arch ring by using an inclinometer installed at the bottom section of the arch column pier of the arch bridge to be tested; According to the formula Obtain the real-time axial length of the arch columns of the arch bridge to be tested, where L(i) is the initial length of each pier, and αi The material expansion coefficients of each pier are used; the deformation data, the change in horizontal inclination angle, and the real-time axial length of the columns on the arch are substituted into the preset arch deformation formula. , obtain the current coordinates of the key points of the arch ring after deformation, where H0(i) is the initial coordinate of the key points of the arch ring.

[0078] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0079] The above description is only a partial implementation of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for detecting the line type of an arch ring of an arch bridge, characterized in that, The method comprises: Deformation data of the main beam pier support of the arch bridge under test were obtained using a photoelectric deflectometer. ;Including: obtaining the coordinates of the deformed main beam pier support points using a photoelectric deflectometer ( According to the formula and the initial coordinates of the main beam pier support ( Obtain the deformation data ; The horizontal inclination change value of the arch ring is obtained by an inclinometer installed at the bottom section of the arch column of the arch bridge to be detected ; According to the formula Obtain the real-time axial length of the arch column of the arch bridge to be tested, wherein, Let be the initial length of each bridge pier. The coefficient of thermal expansion of each bridge pier; including: obtaining the temperature change value of the arch column structure at the bottom of the arch column pier of the arch bridge under test using a temperature sensor. , will the Substitute the Obtain the real-time axial length of the column on the arch; The deformation data, the change in horizontal inclination angle, and the real-time axial length of the arch column are substituted into the preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, where, The initial coordinates of the key points of the arch ring; including: according to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

2. A system for detecting the line type of an arch ring of an arch bridge, characterized by, The system comprises: The deformation data acquisition module is used to acquire deformation data of the main beam pier supports of the arch bridge under test using a photoelectric deflectometer. ;Including: obtaining the coordinates of the deformed main beam pier support points using a photoelectric deflectometer ( According to the formula and the initial coordinates of the main beam pier support ( Obtain the deformation data ; The horizontal inclination change value acquisition module is configured to acquire the horizontal inclination change value of the arch ring by means of an inclination instrument installed at the bottom section of the column pier of the arch of the to-be-detected arch bridge ; The module for obtaining the real-time axial length of the arch-supported column is used to obtain the length of the column according to the formula. Obtain the real-time axial length of the arch column of the arch bridge to be tested, wherein, Let be the initial length of each bridge pier. The coefficient of thermal expansion of each bridge pier; including: obtaining the temperature change value of the arch column structure at the bottom of the arch column pier of the arch bridge under test using a temperature sensor. , will the Substitute the Obtain the real-time axial length of the column on the arch; The arch current coordinate acquisition module is used to input the deformation data, the change value of the horizontal inclination angle, and the real-time axial length of the columns on the arch into a preset arch deformation formula. Obtain the current coordinates of the key points of the arch ring after deformation, where, The initial coordinates of the key points of the arch ring; including: according to the formula Obtain the coordinates of the key points of the arch ring after deformation. ).

3. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the method for detecting the linear type of the arch ring of an arch bridge according to claim 1 when the program is executed.

4. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program implements the method for detecting the linear type of the arch ring of an arch bridge according to claim 1 when executed by the processor.

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