Health monitoring method and apparatus for industrial large-span spatial structure, device, medium, and product

Abstract

Embodiments of the present application relate to the field of structural monitoring, and provide a health monitoring method and apparatus for an industrial large-span spatial structure, a device, a medium, and a product. The method comprises: acquiring action information obtained by monitoring an industrial large-span spatial structure, and inputting the action information into a first structural model to obtain calculated stress values of respective members in the first structural model; determining a correction coefficient on the basis of a measured stress value of a member to be monitored, so as to determine a corrected second structural model; and on the basis of a monitoring result of the action information, calculating target simulated stress values of the respective members approximating actual stress conditions, so as to perform health monitoring on the industrial large-span spatial structure. After correcting a structural model of an industrial large-span spatial structure, environmental monitoring of action information in partial regions is mainly used, while the structural model itself is also incorporated, thereby solving the problem that it would be difficult to accurately determine a health condition only on the basis of environmental monitoring, and greatly reducing health monitoring costs. The method is efficient and easy to implement, and is practical.

Description

Methods, devices, equipment, media and products for health monitoring of large-span industrial spatial structures

[0001] Cross-references to related applications

[0002] This application claims the benefit of Chinese patent application CN202510493029.6, filed on April 18, 2025, the contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of structural monitoring, and in particular to a method, device, equipment, medium, and product for health monitoring of large-span industrial spatial structures. Background Technology

[0004] With the increasing demand for industrial upgrading and technological transformation, the span of large-span spatial structures is constantly increasing, and safety issues are gradually receiving attention. Large-span spatial structures are subject to complex stresses. The existing health monitoring of large-span spatial structures is based on three aspects: structural dynamic characteristics, structural static characteristics, and environmental load identification. Structural information is obtained by deploying acceleration sensors, strain sensors, and wind speed and pressure sensors, with stress and strain monitoring of key components as the main focus, and dynamic characteristic monitoring and environmental monitoring as supplementary.

[0005] However, for large-span spatial structures applied in the industrial field, the importance attached to structural health monitoring is far less than that for public buildings. Most existing industrial large-span spatial structures did not undergo structural testing, such as wind tunnel testing, during the design phase. The understanding of the environmental effects on the structure is not deep. Moreover, due to the large number of members in industrial large-span spatial structures, it is not possible to use the existing health monitoring methods for public buildings, such as stress and strain monitoring of key members, as the main monitoring means.

[0006] Therefore, a monitoring method applicable to large-span spatial structures in industry is urgently needed. Summary of the Invention

[0007] Based on the above-mentioned technical problems, this application provides a method, device, equipment, medium and product for health monitoring of industrial large-span spatial structures, aiming to conduct practical and cost-effective health monitoring for industrial large-span spatial structures.

[0008] The first aspect of this application provides a method for health monitoring of large-span industrial spatial structures, the method comprising:

[0009] The monitoring information obtained from industrial large-span spatial structures includes at least: wind load, snow load, temperature effect, and support displacement.

[0010] The action information is input into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model;

[0011] Based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, a correction coefficient is determined, wherein the member to be monitored is at least one of the members;

[0012] Based on the correction coefficient, the first structural model is corrected to obtain the second structural model;

[0013] Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member is calculated, and the health monitoring of the industrial large-span spatial structure is carried out based on the target simulated stress value.

[0014] Optionally, before acquiring the action information obtained from monitoring large-span industrial spatial structures, the following steps are included:

[0015] Based on the design information of the industrial large-span spatial structure, an original structural model of the industrial large-span spatial structure is constructed.

[0016] The industrial large-span spatial structure is inspected, and the inspection includes at least: spatial structure inspection, rod size inspection, and corrosion degree inspection;

[0017] Based on the test results, the original structural model is corrected to determine the first corrected structural model of the industrial large-span spatial structure.

[0018] Optionally, information on the effects of monitoring large-span industrial spatial structures can be obtained, including:

[0019] A monitoring scheme for the aforementioned large-span industrial spatial structure shall be determined, and the monitoring scheme shall include at least: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring;

[0020] The test area to be monitored is determined according to the monitoring scheme, and data from the monitoring equipment set in the test area is obtained. The monitoring equipment includes at least: sensors;

[0021] Based on the monitoring results of the monitoring equipment, the functional information of the industrial large-span spatial structure is determined.

[0022] Optionally, the first structural model is modified according to the correction coefficient to obtain the second structural model, including:

[0023] Based on the correction coefficient and the calculated stress value of the unmonitored member, the corrected simulated stress value of the unmonitored member is obtained;

[0024] Based on the measured stress value of the monitored member and the corrected simulated stress value of the unmonitored member, the corrected simulated stress value of each member of the industrial large-span spatial structure is determined.

[0025] Based on the corrected simulation stress values ​​of each member, the second structural model of the industrial large-span spatial structure is determined.

[0026] Optionally, based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member is calculated, and the health monitoring of the industrial large-span spatial structure is performed based on the target simulated stress value, including:

[0027] The pole monitoring levels are set, and the pole monitoring levels include at least: a first risk level and a second risk level;

[0028] Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member in the large-span industrial spatial structure under the action information is calculated;

[0029] The monitoring level of each member is determined based on the target simulated stress value;

[0030] Based on the proportion of the number of rods at each monitoring level, a health monitoring analysis is conducted on the aforementioned large-span industrial spatial structure.

[0031] Optionally, the method further includes:

[0032] Obtain weather forecast information for the area where the large-span industrial spatial structure is located, including at least: wind force, wind speed, snowfall, and temperature changes;

[0033] Based on the weather forecast information, the expected stress information of the industrial large-span spatial structure is predicted, and the expected simulated stress value of each member is calculated;

[0034] The monitoring level of each member is determined based on the predicted simulated stress value;

[0035] Based on the proportion of the number of rods at each monitoring level, risk warnings are issued for the aforementioned large-span industrial spatial structure.

[0036] A second aspect of this application provides a health monitoring device for large-span industrial spatial structures, the device comprising:

[0037] The action information acquisition module is used to acquire action information obtained from monitoring large-span industrial spatial structures. The action information includes at least: wind load, snow load, temperature effect, and support displacement.

[0038] The stress value calculation module is used to input the action information into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model.

[0039] The correction coefficient determination module is used to determine the correction coefficient based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, wherein the member to be monitored is at least one of the members;

[0040] The second structural model determination module is used to correct the first structural model according to the correction coefficient to obtain the second structural model;

[0041] The target simulation stress value calculation module is used to calculate the target simulation stress value of each member based on the second structural model and the monitoring results of the action information, and to perform health monitoring on the industrial large-span spatial structure based on the target simulation stress value.

[0042] Optionally, the industrial large-span spatial structure health monitoring device further includes:

[0043] The original structural model building module is used to build the original structural model of the industrial large-span spatial structure based on the design information of the industrial large-span spatial structure.

[0044] The structural inspection module is used to inspect the industrial large-span spatial structure. The inspection includes at least: spatial structure inspection, member size inspection, and corrosion degree inspection.

[0045] The first structural model correction module is used to correct the original structural model based on the detection results, and to determine the corrected first structural model of the industrial large-span spatial structure.

[0046] Optionally, the function information acquisition module includes:

[0047] The monitoring scheme determination submodule is used to determine the monitoring scheme for the industrial large-span spatial structure. The monitoring scheme includes at least: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring.

[0048] The test area determination submodule is used to determine the test area to be monitored according to the monitoring scheme, and to acquire data from the monitoring equipment set in the test area. The monitoring equipment includes at least: sensors;

[0049] The function information determination submodule is used to determine the function information of the industrial large-span spatial structure based on the monitoring results of the monitoring equipment.

[0050] Optionally, the second structural model determination module includes:

[0051] The submodule for calculating the corrected simulation stress value is used to obtain the corrected simulation stress value of the unmonitored member based on the correction coefficient and the calculated stress value of the unmonitored member.

[0052] The modified simulation stress value determination submodule is used to determine the modified simulation stress value of each member of the industrial large-span spatial structure based on the measured stress value of the member to be monitored and the modified simulation stress value of the member not monitored.

[0053] The second structural model correction submodule is used to determine the second structural model of the industrial large-span spatial structure based on the corrected simulation stress values ​​of each member.

[0054] Optionally, the target simulation stress value calculation module includes:

[0055] The monitoring level setting submodule is used to set the monitoring level of the pole, and the monitoring level of the pole includes at least: a first risk level and a second risk level;

[0056] The target simulation stress value calculation submodule is used to calculate the target simulation stress value of each member in the industrial large-span spatial structure under the action information based on the second structural model and the action information monitoring results.

[0057] The member monitoring level determination submodule is used to determine the member monitoring level of each member based on the target simulated stress value;

[0058] The health monitoring and analysis submodule is used to perform health monitoring and analysis on the industrial large-span spatial structure based on the proportion of the number of poles at each monitoring level.

[0059] Optionally, the target simulation stress value calculation module further includes:

[0060] The weather forecast information acquisition submodule is used to acquire weather forecast information for the area where the industrial large-span spatial structure is located. The weather forecast information includes at least: wind force, wind speed, snowfall, and temperature change.

[0061] The expected simulation stress value calculation submodule is used to predict the action information of the industrial large-span spatial structure based on the weather forecast information, and calculate the expected simulation stress value of each member.

[0062] The member monitoring level determination submodule is used to determine the member monitoring level of each member based on the expected simulated stress value;

[0063] The risk warning submodule is used to provide risk warnings for the industrial large-span spatial structure based on the proportion of the number of rods at each monitoring level.

[0064] A third aspect of this application provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, it implements the industrial large-span spatial structure health monitoring method of the first aspect of this application.

[0065] A fourth aspect of this application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the industrial large-span spatial structure health monitoring method of the first aspect of this application.

[0066] The fifth aspect of this application provides a computer program product, including a computer program that, when executed by a processor, implements the industrial large-span spatial structure health monitoring method of the first aspect of this application.

[0067] The health monitoring method for large-span industrial spatial structures according to this application involves monitoring the structure to obtain information about the forces acting on it. Then, based on the structural model of the large-span industrial spatial structure and the force information, the calculated stress values ​​of each member in the model are obtained. Next, stress tests are performed on a subset of members. Based on the difference between the measured stress values ​​and the calculated stress values, a correction coefficient is determined for the calculated stress values. This correction coefficient is then used to correct the calculated stress values ​​of all members in the first structural model, resulting in a corrected second structural model. Finally, based on the monitoring results of the force information, the force information of the monitored area of ​​the large-span industrial spatial structure is obtained and applied to the corrected second structural model. The target simulated stress values ​​of all members after being subjected to the force information are calculated based on the second structural model and the force information monitoring results. These target simulated stress values ​​are considered as the actual stress conditions of each member, thus enabling health monitoring of the large-span industrial spatial structure.

[0068] Unlike related technologies that monitor key members, this application uses a modified structural model of the industrial large-span spatial structure as a preparation for health monitoring. After obtaining the modified second structural model, only a portion of the industrial large-span spatial structure needs to be monitored for stress information, significantly reducing the cost of health monitoring. Furthermore, by applying the monitoring results to the modified second structural model, the stress of all members under the stress information is calculated, which serves as the basis for health monitoring of the industrial large-span spatial structure. This method primarily relies on environmental monitoring while also incorporating the model of the industrial large-span spatial structure itself, avoiding the problem that simple environmental monitoring alone cannot accurately determine the health status of the industrial large-span spatial structure. The method is efficient, convenient, and feasible. Attached Figure Description

[0069] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 is a flowchart of a health monitoring method for large-span industrial spatial structures according to an embodiment of this application;

[0071] Figure 2 is a block diagram illustrating an implementation method for health monitoring of large-span industrial spatial structures according to an embodiment of this application;

[0072] Figure 3 is a structural block diagram of an industrial large-span spatial structure health monitoring device provided in an embodiment of this application;

[0073] Figure 4 is a schematic diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0075] In the accompanying drawings, the size of constituent elements, the thickness of layers, or areas may sometimes be exaggerated for clarity. Therefore, any implementation of this disclosure is not necessarily limited to the dimensions shown in the drawings, and the shapes and sizes of the components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and any implementation of this disclosure is not limited to the shapes or values ​​shown in the drawings.

[0076] Due to the complex stress conditions of large-span spatial structures, health monitoring methods for these structures are typically applied to public buildings, such as large stadiums and airport terminals. These public large-span spatial structures have unique shapes and distinctive styles, and their structures are specifically designed. Therefore, health monitoring methods for them are usually only applicable to their specific structures and lack universality, making them unsuitable for other building structures to adopt. Furthermore, most public buildings consider the impact of load information on the structure during the design phase and undergo load information-related tests before construction, such as wind tunnel tests. This provides a certain understanding of the distribution of load information on the structure and allows for targeted monitoring of key structural members. However, for industrial large-span spatial structures, the emphasis on load information during construction is far lower than that for public buildings. Most industrial large-span spatial structures have not undergone load information-related tests, resulting in a relatively poor understanding of their interaction with the environment, making it difficult to directly apply health monitoring methods used in public buildings.

[0077] Furthermore, the application of industrial large-span spatial structures involves multiple industrial sectors. Many industrial large-span spatial structures have a long history of construction, and the building codes implemented during design and construction are not entirely the same. Their reliability levels vary greatly. Moreover, due to their long-term use, their structures are affected by adverse factors such as environmental erosion, material aging, fatigue effects, and catastrophic effects. The problems faced in health monitoring are different from those in public buildings.

[0078] Therefore, addressing the problems encountered in health monitoring of large-span industrial spatial structures in related technologies, this application proposes a practical and cost-effective method for health monitoring of large-span industrial spatial structures. Please refer to Figure 1 for details. Figure 1 is a flowchart of a health monitoring method for large-span industrial spatial structures proposed in an embodiment of this application. As shown in Figure 1, the method may include steps S101 to S105:

[0079] Step S101: Obtain the action information obtained from monitoring the industrial large-span spatial structure. The action information includes at least: wind load, snow load, temperature effect, and support displacement.

[0080] Step S102: Input the action information into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model;

[0081] Step S103: Based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, determine the correction coefficient, wherein the member to be monitored is at least one of the members;

[0082] Step S104: Based on the correction coefficient, the first structural model is corrected to obtain the second structural model;

[0083] Step S105: Based on the second structural model and the monitoring results of the action information, calculate the target simulation stress value of each member, and perform health monitoring on the industrial large-span spatial structure based on the target simulation stress value.

[0084] In this application embodiment, the industrial large-span spatial structure requiring health monitoring generally refers to large-span spatial structures built in industrial settings such as coal sheds, material sheds, and large-span roofs. These structures are typically space frames, shell structures, or tubular trusses, and their spans are usually not less than a set length (e.g., 30 meters). Since most of these are already built and in use, they lack the conditions for conducting performance testing during the design phase. Furthermore, industrial large-span spatial structures involve numerous and complex members. Therefore, the health monitoring method proposed in this application is a method that calculates the overall health of the industrial large-span spatial structure based on the condition of a subset of its members, and then performs health monitoring accordingly. The execution process can be broadly divided into two stages: the preliminary preparation stage and the health monitoring stage. Firstly, in the preliminary preparation stage, it is necessary to model the industrial large-span spatial structure and monitor its load information. The monitored load information is applied to the first structural model of the industrial large-span spatial structure to obtain the calculated stress values ​​of each member. Simultaneously, stress testing is performed on a portion of the members to obtain measured stress values. By comparing the measured stress values ​​with the calculated stress values, a correction coefficient for the industrial large-span spatial structure model is obtained. This correction coefficient reflects the damage status of each member under the influence of the load information during the use of the industrial large-span spatial structure. Based on the damage status, the first structural model of the industrial large-span spatial structure is corrected, thereby obtaining the internal force status of each member in the industrial large-span spatial structure that is closest to the true value under the load information. This leads to the determination of the corrected second structural model, further reducing the error of the structural model.

[0085] During the health monitoring phase, based on the monitoring results of the action information set around the industrial large-span spatial structure, the target simulated stress value of each member under the action information can be calculated through the second structural model of the industrial large-span spatial structure in the preparation phase. That is, the actual stress value of each member after being subjected to the action information. In this way, the health monitoring analysis of the industrial large-span spatial structure can be carried out. Based on whether the stress of each member under the influence of the action information exceeds its bearing capacity, and whether the stress of each member will affect the industrial large-span spatial structure, the health status of the industrial large-span spatial structure can be determined.

[0086] This method involves setting up monitoring areas for environmental impact information at designated locations around the industrial large-span spatial structure after preliminary preparation. By applying environmental impact information to the industrial large-span spatial structure model, the health monitoring costs associated with monitoring the internal forces of key members are avoided. Furthermore, the stress conditions of all members in the industrial large-span spatial structure can be calculated, effectively enabling health monitoring of the industrial large-span spatial structure.

[0087] Step S101: Obtain the action information obtained from monitoring the industrial large-span spatial structure. The action information includes at least: wind load, snow load, temperature effect and support displacement.

[0088] In this embodiment of the application, the action information refers to the actions exerted on the industrial large-span spatial structure, including but not limited to: wind load, snow load, temperature effect and support displacement. First, based on the characteristics of different industrial large-span spatial structures, the areas to be monitored and the corresponding monitoring methods are selected, and sensors are deployed to collect the action information of each monitoring area of ​​the industrial large-span spatial structure to be monitored.

[0089] Specifically, wind load refers to the pressure or suction generated by wind acting on the surface of a structure, which may induce structural vibration or cause damage. This is measured by sensors placed on the structural surface, such as thin-film pressure sensors, to measure surface wind pressure. Snow load is the vertical load generated by the weight of snow accumulated on the surface of a large-span spatial structure. This weight can cause structural damage due to localized overloading. Snow thickness is monitored by sensors placed on the surface of the large-span spatial structure, such as snow depth sensors, which use ultrasonic or laser ranging to measure snow thickness. Temperature effects are the deformation of the structure caused by changes in ambient temperature, resulting in internal forces and additional stresses. This can cause structural deformation or node failure in large-span industrial spatial structures. Measurements can be taken by placing sensors on the structural surface, such as temperature sensors, or by using infrared thermal imaging to detect temperature distribution. Support displacement is caused by factors such as foundation settlement, temperature deformation, and external forces, resulting in horizontal, vertical, or rotational changes in the structural supports. This may alter the distribution of internal forces within the structure. Moreover, for large-span industrial spatial structures, even small displacements can be amplified to produce significant deformation. The supports of large-span industrial spatial structures can be monitored using sensors, levels, and inclinometers to check whether displacement or rotation has occurred.

[0090] Step S102: Input the action information into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model.

[0091] In this embodiment of the application, the action information is applied to the first structural model of the industrial large-span spatial structure to be monitored, and the stress generated by each member in the industrial large-span spatial structure under the influence of the action information is calculated under ideal conditions and recorded as the calculated stress value.

[0092] Step S103: Based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, determine the correction coefficient, wherein the member to be monitored is at least one of the members.

[0093] In this embodiment, while setting up the action information monitoring, it is also necessary to select a portion of the members in the industrial large-span spatial structure as the members to be monitored. By measuring the stress generated by the members under the influence of the action information, the measured stress value is obtained. Specifically, strain sensors can be arranged on the members to be monitored to obtain the stress condition. By comparing the measured stress value of the members to be monitored with the calculated stress value obtained through the model, a correction coefficient for the industrial large-span spatial structure model can be obtained. That is, the stress condition of each member in the first structural model after being subjected to the action information is corrected, so that the stress condition of each member calculated by the model is closer to the actual situation.

[0094] Optionally, since there are multiple types of action information, and the effects of each type may vary, the structural model of the industrial large-span spatial structure can be further improved by conducting multiple measurements under different conditions. For example, regarding the impact of snow load, the stress on the monitored members can be measured under different snow accumulation levels to determine the potential impact of snow load on the industrial large-span spatial structure under different snowfall amounts. Furthermore, due to the shape of the industrial large-span spatial structure and the potential influence of wind on snow distribution, the impact of uneven snow distribution on the snow load caused by the industrial large-span spatial structure also needs to be considered during monitoring. By collecting data under multiple conditions, the correction coefficients of the industrial large-span spatial structure model can be further improved, making the calculated stress on other members closer to the actual values ​​and improving the accuracy of health monitoring.

[0095] Step S104: Based on the correction coefficient, the first structural model is corrected to obtain the second structural model.

[0096] In this embodiment of the application, since there are a large number of members in the industrial large-span spatial structure, it is impossible to monitor the stress of each member. Therefore, the calculated stress values ​​of each member in the first structural model are corrected accordingly by using correction coefficients calculated after actual measurement of a portion of the members to be monitored. This results in the simulated stress values ​​of each member in the structure under the monitored load information, thereby correcting the first structural model and obtaining a second structural model that is closer to the real situation.

[0097] Step S105: Based on the second structural model and the monitoring results of the action information, calculate the target simulation stress value of each member, and perform health monitoring on the industrial large-span spatial structure based on the target simulation stress value.

[0098] In this embodiment, after completing the preliminary preparatory work and revising the structural model of the industrial large-span spatial structure, health monitoring of the industrial large-span spatial structure can be carried out. Specifically, by monitoring the action information of the industrial large-span spatial structure during use, this information is applied to the revised second structural model to calculate the target simulated stress value of each member. Since it is a revised structural model, the target simulated stress value can be considered to reflect the actual stress situation of each member in the industrial large-span spatial structure. Based on this, it can be determined whether the industrial large-span spatial structure will be at risk due to the action information, which facilitates the health analysis of maintenance personnel and allows them to take different countermeasures according to different situations.

[0099] In conjunction with the above embodiments, in one implementation, this application also provides a method for health monitoring of large-span industrial spatial structures, which specifically includes the following before obtaining the effect information obtained from monitoring the large-span industrial spatial structures:

[0100] First, based on the design information of the industrial large-span spatial structure, an original structural model of the industrial large-span spatial structure needs to be built. Previously built industrial large-span spatial structures may only exist on paper drawings, or the description of the structural design may be relatively brief. It is necessary to build a model of the industrial large-span spatial structure to be monitored as accurately as possible based on the design information at the time of design and construction. The more accurate and closer the original structural model is to reality, the more precise the subsequent model correction and health monitoring of the industrial large-span spatial structure will be.

[0101] Then, the industrial large-span spatial structure is inspected. This inspection includes at least: spatial structure inspection, member dimension inspection, and corrosion degree inspection. For industrial large-span spatial structures, due to their industrial application and varying construction periods and referenced building codes, their actual condition may differ significantly from the original design information. After modeling the industrial large-span spatial structure based on the design information, it is necessary to conduct actual inspection and evaluation of the structure to be monitored. This includes verifying whether the structure's construction matches the design drawings, whether the selected member dimensions strictly adhere to the design drawings, and whether there are any member errors. Furthermore, due to the passage of time, the original structure may exhibit varying degrees of corrosion and damage caused by past loads. These factors affect the original performance of the members, causing their stress conditions to deviate from those considered in the design phase. Therefore, on-site inspection of the industrial large-span spatial structure to be monitored is necessary to confirm its current condition.

[0102] Finally, the original structural model is corrected based on the test results to determine the corrected first structural model of the industrial large-span spatial structure. After the test is completed, the test results are compared with the design information. For the parts that have changed, the original model built based on the design information is corrected to obtain the first structural model of the industrial large-span spatial structure that conforms to the current actual situation, which is used to calculate the structural stress of the structure after applying load information.

[0103] In conjunction with the above embodiments, in one implementation, this application also provides a method for health monitoring of large-span industrial spatial structures, obtaining operational information from monitoring large-span industrial spatial structures, specifically including the following:

[0104] First, determine the monitoring scheme for the industrial large-span spatial structure. The monitoring scheme shall include at least: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring.

[0105] Then, the test area to be monitored is determined according to the monitoring scheme, and the data of the monitoring equipment set in the test area is obtained. The monitoring equipment includes at least: sensors;

[0106] In this embodiment, different monitoring schemes are required for different industrial large-span spatial structures. Based on their location and usage, different monitoring schemes are developed according to different load information to ensure accurate reflection of the load information that the monitored large-span spatial structure may experience during actual application. This includes monitoring items such as wind load detection, snow load monitoring, temperature load monitoring, and support displacement monitoring. It also includes the selection of control members that may require comparative monitoring, and the selection of monitoring areas should be tailored to local conditions. For example, areas that may be affected by different load information need to be monitored in a focused manner, as do areas where damage caused by load information has a significant impact. The proposed monitoring scheme can be applied not only in the preliminary preparation stage for revising the structural model of the industrial large-span spatial structure, but also in the subsequent health monitoring stage for monitoring the actual load information of the industrial large-span spatial structure.

[0107] Specifically, due to the wide range of applications and large number of industrial large-span spatial structures, different health monitoring schemes are needed for different application scenarios, relevant structural specifications, and operation and maintenance requirements. For example, in northern regions with heavy snowfall, snow load may have the primary impact on industrial large-span spatial structures. Therefore, it is necessary to fully consider the potential impact on the structure under different snowfall levels. This can be achieved by increasing the monitoring area to comprehensively consider the impact of snow load on each part and the actual stress of each member. In contrast, in southern coastal areas, there may be no snowfall, but wind load has a significant impact and extreme wind conditions, such as typhoons, may occur. Therefore, a more detailed wind load monitoring scheme is needed, with special attention paid to areas susceptible to wind load, such as corners and eaves. Furthermore, based on local historical meteorological data, the potential wind load impact on industrial large-span spatial structures under extreme wind conditions should be considered. In mountainous areas, there are large diurnal temperature differences and seasonal temperature variations. The temperature fluctuations caused by solar radiation are significant, resulting in large-span industrial structures in the area. Therefore, temperature effects have a substantial impact on these structures. The thermal expansion and contraction of structural materials due to temperature changes must be carefully considered, and monitoring of temperature effects needs to take into account dynamic changes. Thus, a multi-period monitoring plan is necessary to ensure coverage of various temperature variations that industrial structures may experience. Regarding support displacement, several scenarios exist. Firstly, industrial structures located in earthquake-prone areas require more detailed monitoring of support displacement, as ground motion has a significant impact on structural supports. Secondly, the foundation conditions of the industrial structures' locations must be considered, including soil inhomogeneity and groundwater level fluctuations. Targeted monitoring plans for support displacement are needed.

[0108] Finally, based on the monitoring results of the monitoring equipment, the functional information of the industrial large-span spatial structure is determined.

[0109] In this application example, the actual force information of the industrial large-span spatial structure is collected by monitoring equipment, and then the force information is applied to the first structural model of the constructed industrial large-span spatial structure through the structural model. In this way, the stress of each member after the model is subjected to the force information can be obtained, which can be compared with the actual measured values.

[0110] In conjunction with the above embodiments, in one implementation, this application also provides a method for health monitoring of large-span industrial spatial structures, wherein a second structural model is obtained by correcting the first structural model according to the correction coefficient, specifically including the following:

[0111] Based on the correction coefficient and the calculated stress value of the unmonitored member, the corrected simulated stress value of the unmonitored member is obtained;

[0112] Based on the measured stress value of the monitored member and the corrected simulated stress value of the unmonitored member, the corrected simulated stress value of each member of the industrial large-span spatial structure is determined.

[0113] Based on the corrected simulation stress values ​​of each member, the second structural model of the industrial large-span spatial structure is determined.

[0114] In this embodiment, after obtaining the correction coefficient, the unmonitored members (excluding the members to be monitored) in the industrial large-span spatial structure to be monitored can be corrected according to the correction coefficient. The calculated stress value of the unmonitored members is obtained from the first structural model after the application of the action information. Based on the calculated stress value, the correction coefficient is applied to obtain the corrected simulated stress value of the unmonitored members. By combining the measured stress value of the members to be monitored with the corrected simulated stress value of the unmonitored members, the corrected simulated stress value of all members in the industrial large-span spatial structure to be monitored under the action information can be determined. This can be regarded as the actual stress situation of each member under the action information. Thus, the corrected second structural model of the industrial large-span spatial structure to be monitored can be obtained, which can reflect the structural damage of the industrial large-span spatial structure to be monitored, and is closer to the true value, reducing the error of the model.

[0115] In conjunction with the above embodiments, in one implementation, this application also provides a method for health monitoring of industrial large-span spatial structures. Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member is calculated, and health monitoring of the industrial large-span spatial structure is performed based on the target simulated stress value. Specifically, the method includes the following:

[0116] First, establish pole monitoring levels, which include at least: a first risk level and a second risk level.

[0117] In this embodiment, the number of members involved in the industrial large-span spatial structure is large, so certain standards are needed to limit their health monitoring. First, it is stipulated that the monitoring level of each member has a first risk level and a second risk level. Optionally, the threshold for whether a member belongs to the first risk level or the second risk level can be set as the stress condition of the member. The member is set to a low risk level if the stress condition may have a small negative impact on the member itself and the overall structure, while the member is set to a high risk level if it may cause deformation of the member and thus affect the entire industrial large-span spatial structure. The specific threshold and level can be set according to different industrial large-span spatial structures to be monitored, and this application does not impose any restrictions.

[0118] Then, based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member in the large-span industrial spatial structure under the action information is calculated.

[0119] Next, the monitoring level of each member is determined based on the target simulated stress value.

[0120] In this embodiment of the application, after completing a series of preparatory work such as modeling, detection and correction of the industrial large-span spatial structure to be monitored in the early preparation stage, in the actual monitoring process, it is only necessary to monitor the action information of the industrial large-span spatial structure according to the monitoring plan, and apply the collected action information to the corrected second structural model to calculate the target simulation stress value of each member that approaches the true value. By comparing them, it is determined which member monitoring level each member is at, thereby judging the degree of influence of the action information.

[0121] Finally, based on the proportion of the number of rods at each monitoring level, a health monitoring analysis is conducted on the aforementioned large-span industrial spatial structure.

[0122] In this embodiment, after obtaining the monitoring level of each member, a health monitoring analysis of the industrial large-span spatial structure can be performed. In an optional embodiment, the overall condition of the industrial large-span spatial structure can be determined by the proportion of members at each monitoring level. For example, if members at a high-risk level account for 2% of the total number of members, and members at a medium-risk level account for 10% of the total number of members, then the industrial large-span spatial structure is considered to be at risk and requires immediate maintenance. The specific method of health monitoring analysis can be adjusted according to the actual situation, and is not limited in this application.

[0123] In one optional embodiment, the health analysis of industrial large-span spatial structures can also be combined with the importance of the members. For example, if one member among the members with a high importance level reaches a high-risk level, then the member needs to be inspected and dealt with immediately to avoid problems in the industrial large-span spatial structure caused by damage or breakage of key members.

[0124] In conjunction with the above embodiments, in one implementation, this application also provides a method for health monitoring of industrial large-span spatial structures. Based on the second structural model and the monitoring results of the action information, the method calculates the target simulated stress value of each member, and performs health monitoring of the industrial large-span spatial structure based on the target simulated stress value. Specifically, the method further includes the following:

[0125] Obtain weather forecast information for the area where the large-span industrial spatial structure is located, including at least: wind force, wind speed, snowfall, and temperature changes;

[0126] Based on the weather forecast information, the expected stress information of the industrial large-span spatial structure is predicted, and the expected simulated stress value of each member is calculated;

[0127] The monitoring level of each member is determined based on the predicted simulated stress value;

[0128] Based on the proportion of the number of rods at each monitoring level, risk warnings are issued for the aforementioned large-span industrial spatial structure.

[0129] In this embodiment of the application, based on the health monitoring of industrial large-span spatial structures according to the monitoring information, a method for early warning of industrial large-span spatial structures is also proposed. Specifically, based on weather forecast information, such as weather forecasts, the future weather conditions of the area where the large-span spatial structure to be monitored is located are obtained in advance, including whether there will be wind, wind force, wind speed, wind direction, etc., as well as whether there will be snowfall, the expected amount of snowfall, the start and end time, etc., whether there will be a significant temperature rise or drop in a short period of time, and whether there may be extreme weather such as typhoons. When the future weather is known in advance, the impact information that the industrial large-span spatial structure to be monitored may be subjected to when similar weather conditions occur can be obtained based on historical weather conditions. This information is used as input to the structural model and applied to the modified second structural model of the industrial large-span spatial structure to calculate the expected simulated stress values ​​that may occur in each member. Based on the member monitoring level and monitoring plan, a judgment is made, and for situations that may cause damage to the industrial large-span spatial structure, a timely notification and early warning are issued.

[0130] The health monitoring method for large-span industrial spatial structures proposed in this application not only enables practical health monitoring of such structures in industrial applications, but also reduces operating costs compared to related technologies that continuously monitor key components. Furthermore, it can provide early warnings of potential structural damage risks based on weather forecasts, greatly improving the reliability of large-span industrial spatial structures and facilitating large-scale implementation and application.

[0131] In an optional embodiment, the industrial large-span spatial structure health monitoring method proposed in this application can be implemented as shown in Figure 2. Figure 2 is an implementation block diagram of an industrial large-span spatial structure health monitoring method proposed in an embodiment of this application. As shown in Figure 2, firstly, the industrial large-span spatial structure to be monitored is detected and identified, and a model is created based on the actual situation. Then, a monitoring plan needs to be formulated, including: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring. Next, the actual action information collected according to the monitoring plan is applied to the first structural model to obtain the corrected second structural model, and the stress situation of all members is calculated to complete the preliminary preparation work. Finally, based on the actual monitored action information, the health status of the industrial large-span spatial structure is analyzed, and early warnings are issued in a timely manner based on weather forecast information.

[0132] Based on the same design concept, one embodiment of this application provides a health monitoring device for industrial large-span spatial structures. Referring to Figure 3, Figure 3 is a structural block diagram of the industrial large-span spatial structure health monitoring device provided in one embodiment of this application. As shown in Figure 3, the device includes:

[0133] The action information acquisition module is used to acquire action information obtained from monitoring large-span industrial spatial structures. The action information includes at least: wind load, snow load, temperature effect, and support displacement.

[0134] The stress value calculation module is used to input the action information into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model.

[0135] The correction coefficient determination module is used to determine the correction coefficient based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, wherein the member to be monitored is at least one of the members;

[0136] The second structural model determination module is used to correct the first structural model according to the correction coefficient to obtain the second structural model;

[0137] The target simulation stress value calculation module is used to calculate the target simulation stress value of each member based on the second structural model and the monitoring results of the action information, and to perform health monitoring on the industrial large-span spatial structure based on the target simulation stress value.

[0138] Optionally, the industrial large-span spatial structure health monitoring device further includes:

[0139] The original structural model building module is used to build the original structural model of the industrial large-span spatial structure based on the design information of the industrial large-span spatial structure.

[0140] The structural inspection module is used to inspect the industrial large-span spatial structure. The inspection includes at least: spatial structure inspection, member size inspection, and corrosion degree inspection.

[0141] The first structural model correction module is used to correct the original structural model based on the detection results, and to determine the corrected first structural model of the industrial large-span spatial structure.

[0142] Optionally, the function information acquisition module includes:

[0143] The monitoring scheme determination submodule is used to determine the monitoring scheme for the industrial large-span spatial structure. The monitoring scheme includes at least: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring.

[0144] The test area determination submodule is used to determine the test area to be monitored according to the monitoring scheme and to acquire data from the monitoring equipment set in the test area. The monitoring equipment includes at least: sensors.

[0145] The function information determination submodule is used to determine the function information of the industrial large-span spatial structure based on the monitoring results of the monitoring equipment.

[0146] Optionally, the second structural model determination module includes:

[0147] The submodule for calculating the corrected simulation stress value is used to obtain the corrected simulation stress value of the unmonitored member based on the correction coefficient and the calculated stress value of the unmonitored member.

[0148] The modified simulation stress value determination submodule is used to determine the modified simulation stress value of each member of the industrial large-span spatial structure based on the measured stress value of the member to be monitored and the modified simulation stress value of the member not monitored.

[0149] The second structural model correction submodule is used to determine the second structural model of the industrial large-span spatial structure based on the corrected simulation stress values ​​of each member.

[0150] Optionally, the target simulation stress value calculation module includes:

[0151] The monitoring level setting submodule is used to set the monitoring level of the pole, and the monitoring level of the pole includes at least: a first risk level and a second risk level;

[0152] The target simulation stress value calculation submodule is used to calculate the target simulation stress value of each member in the industrial large-span spatial structure under the action information based on the second structural model and the action information monitoring results.

[0153] The member monitoring level determination submodule is used to determine the member monitoring level of each member based on the target simulated stress value;

[0154] The health monitoring and analysis submodule is used to perform health monitoring and analysis on the industrial large-span spatial structure based on the proportion of the number of poles at each monitoring level.

[0155] Optionally, the target simulation stress value calculation module further includes:

[0156] The weather forecast information acquisition submodule is used to acquire weather forecast information for the area where the industrial large-span spatial structure is located. The weather forecast information includes at least: wind force, wind speed, snowfall, and temperature change.

[0157] The expected simulation stress value calculation submodule is used to predict the action information of the industrial large-span spatial structure based on the weather forecast information, and calculate the expected simulation stress value of each member.

[0158] The member monitoring level determination submodule is used to determine the member monitoring level of each member based on the expected simulated stress value;

[0159] The risk warning submodule is used to provide risk warnings for the industrial large-span spatial structure based on the proportion of the number of rods at each monitoring level.

[0160] Based on the same design concept, another embodiment of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps in the industrial large-span spatial structure health monitoring method described in any of the above embodiments of this application.

[0161] Based on the same design concept, another embodiment of this application provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps in the industrial large-span spatial structure health monitoring method as described in any of the above embodiments of this application.

[0162] Based on the same design concept, another embodiment of this application provides an electronic device, as shown in FIG4. FIG4 is a schematic diagram of an electronic device according to an embodiment of this application. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When executed by the processor, the program implements the steps of the industrial large-span spatial structure health monitoring method described in any of the above embodiments of this application.

[0163] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0164] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0165] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0166] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0167] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0168] These computer program instructions may also be loaded onto a computer or other programmable data processing terminal equipment to cause a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable terminal equipment, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0169] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0170] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0171] The above provides a detailed description of the method, apparatus, equipment, medium, and product for health monitoring of large-span industrial spatial structures provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for health monitoring of industrial long-span spatial structures, characterized in that, include: The monitoring information obtained from industrial large-span spatial structures includes at least: wind load, snow load, temperature effect, and support displacement. The action information is input into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model; Based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, a correction coefficient is determined, wherein the member to be monitored is at least one of the members; Based on the correction coefficient, the first structural model is corrected to obtain the second structural model; Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member is calculated, and the health monitoring of the industrial large-span spatial structure is carried out based on the target simulated stress value.

2. The industrial long-span space structure health monitoring method according to claim 1, wherein, Before obtaining the operational information from monitoring large-span industrial spatial structures, the following steps are also included: Based on the design information of the industrial large-span spatial structure, an original structural model of the industrial large-span spatial structure is constructed. The industrial large-span spatial structure is inspected, and the inspection includes at least: spatial structure inspection, rod size inspection, and corrosion degree inspection; Based on the test results, the original structural model is corrected to determine the first corrected structural model of the industrial large-span spatial structure.

3. The industrial long-span space structure health monitoring method according to claim 1, wherein, The monitoring information obtained from monitoring large-span industrial spatial structures includes: A monitoring scheme for the aforementioned large-span industrial spatial structure shall be determined, and the monitoring scheme shall include at least: wind load monitoring, snow load monitoring, temperature effect monitoring, support displacement monitoring, and control member monitoring; The test area to be monitored is determined according to the monitoring scheme, and data from the monitoring equipment set in the test area is obtained. The monitoring equipment includes at least: sensors; Based on the monitoring results of the monitoring equipment, the functional information of the industrial large-span spatial structure is determined.

4. The industrial long-span space structure health monitoring method according to claim 1, wherein, Based on the correction coefficient, the first structural model is corrected to obtain the second structural model, including: Based on the correction coefficient and the calculated stress value of the unmonitored member, the corrected simulated stress value of the unmonitored member is obtained; Based on the measured stress value of the monitored member and the corrected simulated stress value of the unmonitored member, the corrected simulated stress value of each member of the industrial large-span spatial structure is determined. Based on the corrected simulation stress values ​​of each member, the second structural model of the industrial large-span spatial structure is determined.

5. The industrial long-span space structure health monitoring method according to claim 1, wherein, Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member is calculated, and the health monitoring of the industrial large-span spatial structure is performed based on the target simulated stress value, including: The pole monitoring levels are set, and the pole monitoring levels include at least: a first risk level and a second risk level; Based on the second structural model and the monitoring results of the action information, the target simulated stress value of each member in the large-span industrial spatial structure under the action information is calculated; The monitoring level of each member is determined based on the target simulated stress value; Based on the proportion of the number of rods at each monitoring level, a health monitoring analysis is conducted on the aforementioned large-span industrial spatial structure.

6. The industrial long-span space structure health monitoring method according to claim 5, wherein, include: Obtain weather forecast information for the area where the large-span industrial spatial structure is located, including at least: wind force, wind speed, snowfall, and temperature changes; Based on the weather forecast information, the expected stress information of the industrial large-span spatial structure is predicted, and the expected simulated stress value of each member is calculated; The monitoring level of each member is determined based on the predicted simulated stress value; Based on the proportion of the number of rods at each monitoring level, risk warnings are issued for the aforementioned large-span industrial spatial structure.

7. An industrial long-span spatial structure health monitoring device, characterized in that, The device includes: The action information acquisition module is used to acquire action information obtained from monitoring large-span industrial spatial structures. The action information includes at least: wind load, snow load, temperature effect, and support displacement. The stress value calculation module is used to input the action information into the first structural model corresponding to the industrial large-span spatial structure to obtain the calculated stress value of each member in the first structural model. The correction coefficient determination module is used to determine the correction coefficient based on the measured stress value of the member to be monitored and the calculated stress value of the member to be monitored, wherein the member to be monitored is at least one of the members; The second structural model determination module is used to correct the first structural model according to the correction coefficient to obtain the second structural model; The target simulation stress value calculation module is used to calculate the target simulation stress value of each member based on the second structural model and the monitoring results of the action information, and to perform health monitoring on the industrial large-span spatial structure based on the target simulation stress value.

8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the computer program is executed by the processor, it implements the industrial large-span spatial structure health monitoring method as described in any one of claims 1 to 6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that When the computer program is executed by the processor, it implements the industrial large-span spatial structure health monitoring method as described in any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that, When executed by a processor, the computer program implements the industrial large-span spatial structure health monitoring method as described in any one of claims 1 to 6.

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