BIM-based Construction Supervision Method and System for Steel Structure Canopies

Abstract

The present invention relates to a construction supervision method and system for a steel structure canopy based on BIM, which realizes the efficient construction and precise management of the steel structure canopy through a series of steps. First, the three-dimensional modeling of the steel structure canopy is carried out by using building information model technology to generate a BIM model containing component profile parameters and spatial positioning parameters. Based on this model, the profile parameters of the main components are extracted to obtain the processed steel structure components and aluminum alloy panels. Next, the site is accurately positioned according to the positioning parameters of the BIM model to obtain the positioning point information of the installation site and complete the on-site installation of the steel structure canopy. After the installation is completed, the water-facing surface and related small hardware are subjected to anti-corrosion treatment according to the material configuration information in the BIM model. Finally, the spatial position of the canopy after anti-corrosion treatment is verified through the data in the BIM model, and the component position is corrected according to the verification result. This method improves the construction accuracy, material utilization rate and convenience of later maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of computer-aided architectural structure design, and particularly to a construction supervision method and system for steel structure canopies based on BIM. Background Art

[0002] In the prior art, the construction and management of steel structure canopies usually rely on traditional two-dimensional drawings or partial three-dimensional models for planning and design. These methods include manual measurement, on-site adjustment, and physical model simulation to achieve the processing, positioning, and installation of components. In recent years, Building Information Modeling (BIM) technology has gradually been applied to the construction field to support the design, construction, and operation and maintenance management of complex building components in the form of three-dimensional visualization and information integration, and has shown certain advantages in improving engineering efficiency and reducing error rates.

[0003] However, there are still many problems in the existing BIM applications in the construction management of steel structure canopies. First, the integration degree of BIM with the actual construction site is relatively low, making it difficult to achieve real-time spatial positioning and construction process monitoring, resulting in large errors in component installation positioning. Second, the anti-corrosion treatment, position verification, and component correction based on BIM lack systematic implementation steps, leading to unstable construction quality. Third, the information update of the BIM model and subsequent maintenance work is not timely, making it difficult to achieve the full life cycle management of steel structure canopies.

[0004] Therefore, in view of the above problems in the prior art, it is necessary to develop a new construction supervision method for steel structure canopies based on BIM. Summary of the Invention

[0005] The present application provides a construction supervision method and system for steel structure canopies based on BIM to improve the construction accuracy and material utilization rate of steel structure canopies.

[0006] The present application provides a construction supervision method for steel structure canopies based on BIM, including:

[0007] Using Building Information Modeling (BIM) technology to perform three-dimensional modeling on the steel structure canopy to generate a BIM model, wherein the BIM model includes the profile parameters and spatial positioning parameters of the components of the steel structure canopy, and the components of the steel structure canopy include steel structure components and aluminum alloy panels;

[0008] Based on the BIM model, extracting the profile parameters of the main components; and obtaining the processed steel structure components and aluminum alloy panels according to the profile parameters and spatial positioning parameters of the main components.

[0009] Based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, accurately position the spatial position of the steel structure canopy to obtain the positioning point information of the installation site of the steel structure canopy;

[0010] Use the processed steel structure components and the positioning point information for on-site installation to obtain the steel structure canopy completed on-site;

[0011] Use the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware;

[0012] Use the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment; according to the results of the spatial position verification, correct the steel structure canopy components.

[0013] This application provides a BIM-based construction supervision system for steel structure canopies, including:

[0014] A modeling unit for using Building Information Modeling (BIM) technology to perform three-dimensional modeling on the steel structure canopy to generate a BIM model, where the BIM model includes the profile parameters and spatial positioning parameters of the steel structure canopy components, and the steel structure canopy components include steel structure components and aluminum alloy panels;

[0015] An extraction unit for extracting the profile parameters of the main components based on the BIM model; obtaining the processed steel structure components and aluminum alloy panels according to the profile parameters and spatial positioning parameters of the main components;

[0016] A combination unit for accurately positioning the spatial position of the steel structure canopy based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, to obtain the positioning point information of the installation site of the steel structure canopy;

[0017] An installation unit for using the processed steel structure components and the positioning point information for on-site installation to obtain the steel structure canopy completed on-site;

[0018] A processing unit for using the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware;

[0019] A verification unit for using the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment; according to the results of the spatial position verification, correct the steel structure canopy components.

[0020] The beneficial effects of this application include: (1) By utilizing the three-dimensional modeling and spatial positioning functions of the BIM model, this invention realizes the precise positioning and installation of steel structure awning components. By combining the positioning point information of spatial measurement equipment, the error in component installation is effectively reduced, and the overall construction accuracy and efficiency are improved. (2) By extracting the profile parameters of components based on the BIM model and comparing and verifying the material configuration information during the construction process, this invention realizes the whole-process quality management of steel structure awnings, especially in key links such as anti-corrosion treatment and spatial position verification, ensuring the durability and stability of awning components. (3) This invention provides a systematic construction supervision method. From the processing, installation of components to anti-corrosion treatment and position verification, it relies on the dynamic data of the BIM model, making the construction process clearer and more efficient, and reducing the repeated measurement and manual adjustment links in traditional construction. (4) By updating the anti-corrosion treatment parameters, spatial position verification data and correction results to the BIM model in real time, this invention not only facilitates subsequent maintenance personnel to quickly obtain the actual state information of the steel structure awning, but also supports the whole-life cycle management of the steel structure awning, improving the accuracy and timeliness of maintenance work. Description of the Drawings

[0021] Figure 1 is a flowchart of a construction supervision method for a steel structure awning based on BIM provided by the first embodiment of this application.

[0022] Figure 2 is a schematic diagram of a construction supervision system for a steel structure awning based on BIM provided by the second embodiment of this application. Detailed Embodiments

[0023] Many specific details are set forth in the following description in order to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

[0024] The first embodiment of this application provides a construction supervision method for a steel structure awning based on BIM. Please refer to Figure 1 , this figure is a schematic diagram of the first embodiment of this application. The following describes in detail a construction supervision method for a steel structure awning based on BIM provided by the first embodiment of this application in combination with Figure 1 .

[0025] Step S101: Use Building Information Modeling (BIM) technology to perform three-dimensional modeling on the steel structure awning to generate a BIM model, where the BIM model includes the profile parameters and spatial positioning parameters of the steel structure awning components, and the steel structure awning components include steel structure components and aluminum alloy panels.

[0026] In step S101, a three-dimensional model of the steel structure canopy is created using Building Information Modeling (BIM) technology. The following are the specific detailed operations to ensure the integrity and usability of the model and meet the requirements of steel structure canopy construction supervision.

[0027] First of all, the three-dimensional modeling of the BIM model needs to be completed in a computer-aided design (CAD) or BIM modeling software environment. In this step, the design drawings, structure drawings, and relevant construction specifications of the canopy are collected first. These documents include the overall layout, dimensions, material requirements, and key technical parameters of the canopy. The collection of design drawings and technical documents ensures the accuracy of the input information required for the BIM model.

[0028] When establishing the BIM model, three-dimensional solid models of steel structure components and aluminum alloy panels need to be created respectively according to the design specifications of the steel structure canopy. Specifically, the modeling of steel structure components requires precise construction of geometric shapes based on their profile parameters, which include the cross-sectional shape, length, width, thickness, etc. of the steel. These parameters determine the appearance and dimensions of the components in the model. In addition, corresponding material properties need to be assigned to each component for subsequent simulation and analysis. During the modeling process, the connection nodes and assembly details of the steel structure components also need to be designed in detail, including bolt connections, welding parts, and the layout of connection plates, etc. The modeling of aluminum alloy panels also needs to be based on their profile parameters, and parameters such as the thickness, length, bending radius, and surface treatment of the panels need to be reflected in the model.

[0029] After the models of the steel structure and aluminum alloy panels are established, the spatial positioning parameters in the BIM model need to be added. These parameters include the relative spatial positions of the components, absolute positioning points, installation angles, and reference coordinate systems. The setting of spatial positioning parameters is based on the overall design and installation requirements of the canopy, and a three-dimensional space coordinate system needs to be used to identify the precise positions of each component in the model. To ensure the accuracy of the positioning parameters, the three-dimensional perspective can be adjusted and the model can be aligned through the positioning function in the software to avoid spatial position errors.

[0030] After completing the modeling and positioning of all components, a comprehensive inspection and optimization of the BIM model are also required. This includes geometric inspection of the model, verification of material properties, rationality check of connection nodes, and accuracy analysis of spatial positioning parameters. On this basis, a simulation visualization display is carried out to verify the integrity and coordination of the model. The content of the display should include the spatial layout of the components, material performance, and simulation of installation effects.

[0031] The above steps ensure that the generated BIM model has the complete profile parameters of the steel structure canopy components and accurate spatial positioning parameters, providing basic data and technical support for subsequent component processing, installation, and construction supervision.

[0032] Furthermore, using Building Information Modeling (BIM) technology to perform 3D modeling on the steel structure canopy to generate a BIM model, including:

[0033] During the 3D modeling process, classify and manage the component information in the BIM model, including independently identifying and storing different parameters of steel structure components and aluminum alloy panels;

[0034] Based on the characteristics of different component types, perform multi-level visual annotation on the model, including dynamic display of component material, weight, and dimension information;

[0035] After the 3D modeling is completed, associate the steel structure components and aluminum alloy panels in the model with their respective material databases respectively to achieve real-time synchronous update of component materials and the BIM model.

[0036] The BIM-based construction supervision method for steel structure canopies provided in this embodiment focuses on performing 3D modeling on the steel structure canopy through Building Information Modeling (BIM) technology to generate a BIM model with detailed component information. This process requires specific operations in 3D modeling software to achieve high-precision digital representation of the steel structure canopy.

[0037] In the initial stage of 3D modeling, it is necessary to import the design drawings and relevant technical documents of the steel structure canopy. These documents include the layout, dimensions, materials, and design parameters of the components. Through the imported design data, the components in the model can be defined and identified. During the model construction process, it is necessary to classify and manage different types of components to ensure clear data and explicit structure of various components in the model. Specifically, steel structure components and aluminum alloy panels should be independently identified and stored respectively. For example, steel structure components can be classified and identified according to their functions, shapes, and connection types, such as columns, beams, support frames, etc.; aluminum alloy panels can be classified according to dimensions, thicknesses, and surface treatment methods. When performing identification, a unique identifier should be assigned to each component to ensure accurate identification and traceability during subsequent modeling and construction processes.

[0038] Based on the hierarchical classification management of the model, it is necessary to further carry out multi-level visual annotation. According to the characteristics of different component types, key parameters such as the material, weight, and size of the components are dynamically displayed in a visual manner. The specific operations include, in the model interface, identifying components of different materials in the form of colors, transparencies, or labels, or displaying the hierarchical structure of different types of components in the form of layers. For example, for steel structure components, different materials of steel (such as Q235, Q345, etc.) can be identified by color coding, and their weight and size information can be displayed in the model view. For aluminum alloy panels, their thickness, bending radius, and surface treatment methods can be shown through layers. In this way, users can visually observe and inspect the material, weight, and size of the components through the model interface, and at the same time, they can also switch perspectives and perform dynamic interactions according to their needs.

[0039] After completing the 3D modeling, it is necessary to associate the steel structure components and aluminum alloy panels in the BIM model with their material databases. The specific operations include matching and confirming the material parameters of each component, and associating the component information in the model with the detailed material properties (such as corrosion resistance, strength grade, manufacturer information, etc.) in the material database. The realization of this data association can be operated through the database interface function of the BIM software, enabling the material properties of the components to be updated in real time in the BIM model. The content of the synchronous update is not limited to the material information, but also includes relevant data such as the manufacturing batch and material qualification certificate. In this way, the latest material information can be obtained at any time during the construction process and adjusted and optimized according to the actual situation.

[0040] Through the above steps, the generated BIM model has the functions of complete 3D modeling, hierarchical classification management, multi-level visual annotation, and material data association, and can effectively support the construction supervision and full life cycle management of the steel structure canopy.

[0041] Step S102: Based on the BIM model, extract the profile parameters of the main components; according to the profile parameters of the main components and the spatial positioning parameters, obtain the processed steel structure components and aluminum alloy panels.

[0042] Step S102 involves extracting the profile parameters of the main components of the steel structure canopy based on the generated BIM model, and obtaining the processed steel structure components and aluminum alloy panels according to the extracted profile parameters and spatial positioning parameters.

[0043] First, extract the profile parameters of the steel structure canopy components from the BIM model. This step requires using the query function of the BIM modeling software to identify and extract the detailed parameter information of the main components according to the predefined component attributes in the model. The profile parameters include, but are not limited to, attributes such as cross-sectional shape, dimensions, thickness, material, weight, and mechanical properties. By calling the attribute management module of the BIM model, the parameters of the steel structure and aluminum alloy panels can be screened and exported according to component categories, numbers, and specific attribute tags. To ensure the accuracy of the extracted parameters, a parameter comparison function can be set to automatically check whether the extracted values are consistent with the standard values in the design specifications. The purpose of this step is to obtain accurate profile data suitable for processing and manufacturing.

[0044] After the extraction of the profile parameters is completed, it is necessary to further prepare for the processing of the components in combination with the spatial positioning parameters in the BIM model. The spatial positioning parameters provide the installation position and orientation information of each component in the three-dimensional space. According to the spatial positioning parameters, the assembly angle, connection method, and transportation requirements of the components can be determined. When extracting these parameters, it is necessary to match the profile parameters with the spatial positioning parameters to ensure that the processing direction and installation requirements of each component are consistent. For example, for steel components and aluminum alloy panels with complex shapes, detailed planning is required for the cutting angle, welding point position, and bending radius of the processing.

[0045] Based on the extracted profile parameters and spatial positioning parameters, the actual processing of the components can begin. During the processing, numerically controlled machine tools, laser cutting equipment, or other suitable manufacturing tools need to be used to achieve precise manufacturing of the steel structure and aluminum alloy panels. The profile parameters guide the specific steps of cutting, welding, and assembly. For example, the length of the profile determines the size of the cutting and blanking, the cross-sectional shape determines the selection of the machine tool and the adjustment of the tool, and the thickness determines the welding power and the selection of the welding rod. During this process, the spatial positioning parameters are used to ensure that the processed components can be correctly installed at the design position on-site.

[0046] After the processing is completed, quality inspections need to be carried out on the steel structure components and aluminum alloy panels. The main inspection items include dimensional accuracy, material consistency, and processing surface quality. After passing the inspection, the processed components are classified and labeled for subsequent transportation, on-site installation, and construction supervision.

[0047] Furthermore, extracting the profile parameters of the main components based on the BIM model also includes:

[0048] When extracting the profile parameters, the surface treatment requirements of the components are extracted together, and a corresponding construction material list is generated to facilitate synchronous quality control during subsequent processing and installation;

[0049] The extracted profile parameters of the main components are verified multiple times, including comparison with the design standards, and automatic alerts are generated for parameters with deviations exceeding the preset values.

[0050] The present embodiment provides the extraction of the profile parameters of the main components of the steel structure canopy based on the BIM model, and further refines the extraction process to ensure the high quality and high precision of component processing and installation. The process of extracting profile parameters requires accurately identifying the geometric features and material properties of each component from the BIM model.

[0051] When extracting the profile parameters, it is first necessary to access the component database in the BIM model. This database contains detailed information about each component, including basic parameters such as the cross-sectional shape, thickness, length, and material properties of the component. During the extraction process, the surface treatment requirements of the component need to be synchronously extracted. Surface treatment requirements usually include surface coating type, anti-corrosion grade, weather resistance requirements, and special treatments (such as sandblasting or galvanizing, etc.). When extracting this information, a corresponding construction material list needs to be generated. The generation of the construction material list is based on the comprehensive data of the profile parameters and surface treatment requirements to ensure the precise matching of the materials required for subsequent processing and installation. For example, when it is extracted that a certain component requires a weather-resistant coating, the appropriate coating material and quantity should be automatically added to the material list to ensure the integrity and accuracy of material preparation.

[0052] After the extraction of the profile parameters is completed, the extracted data needs to be verified multiple times. The first step of the verification is to compare the extracted profile parameters with the original design standards. This process can be completed through a dedicated software module, and the system will automatically compare the extracted data with the preset standards in the design specifications one by one. The comparison content includes the cross-sectional dimensions of the profile, thickness tolerance, length deviation, and material property consistency, etc. If the comparison result shows that the deviation of a certain parameter exceeds the preset allowable value, the system will automatically generate an alert. The content of the alert includes a detailed description of the deviated parameter, the out-of-range value, and possible correction suggestions. The automatic alert mechanism ensures the timely adjustment and optimization of component parameters before processing and installation, and avoids quality problems caused by parameter errors.

[0053] During the process of multiple verifications, the actual feasibility of materials and processing techniques also needs to be considered. Specifically, the verification process should combine the capabilities of processing equipment and the conditions at the construction site to ensure that the extracted profile parameters are feasible in actual operation. For example, for large steel structure components, it is necessary to evaluate whether the processing equipment can meet their size and weight requirements, and adjust the processing plan in the construction material list according to the actual situation. In this way, the extracted profile parameters not only meet the design standards numerically, but also have operability and reliability in the actual processing and installation process.

[0054] This embodiment ensures that the profile parameters extracted from the BIM model are not only complete and accurate, but also closely related to the surface treatment requirements and the construction material list. At the same time, through multiple verification and automatic alarm mechanisms, the quality control level during the processing and installation processes is further improved.

[0055] Step S103: Based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, accurately locate the spatial position of the steel structure canopy to obtain the positioning point information of the installation site of the steel structure canopy.

[0056] Step S103 involves accurately positioning the spatial position of the steel structure canopy based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, and obtaining the positioning point information of the installation site.

[0057] First of all, at the construction site, it is necessary to select appropriate spatial measurement equipment for on-site layout according to the three-dimensional spatial positioning parameters in the BIM model. These devices can include total stations, laser rangefinders, GPS positioning devices or other high-precision measurement tools. Construction personnel need to set the initial position and reference coordinate system of the measurement equipment according to the positioning information provided by the BIM model. To ensure the accuracy of the measurement, the calibration of the measurement equipment should conform to the on-site conditions and be adjusted according to the reference points of the building (such as foundation columns or reference lines) to achieve consistent matching with the absolute coordinate system in the BIM model.

[0058] During the measurement process, construction personnel need to confirm the installation position of each component in the field according to the spatial positioning parameters of each component in the BIM model. These positioning parameters include the coordinate position, installation angle and direction information of the component in the three-dimensional space. Through the real-time reading and feedback of the measurement equipment, construction personnel can compare and adjust the virtual positioning points in the BIM model with the actual measurement results. If there is a deviation between the measurement result and the model data, it is necessary to ensure the precise alignment of the positioning point with the design position in the BIM model by using the fine-tuning function of the measurement equipment or moving the reference point.

[0059] After obtaining all the positioning point information, it is necessary to mark and identify the installation points of the steel structure canopy. These marks should include detailed information such as the component number, corresponding installation height and connection position, and be clearly identified at the on-site installation position. For example, the specific information of the positioning point can be marked on the corresponding component installation position by means of spray painting, marking lines or electronic tags. At the same time, it is necessary to record the positioning point information in the construction database of the BIM model in real time through the marking system for verification and adjustment in subsequent construction steps.

[0060] To further ensure the accuracy of the positioning points, multiple measurements and comparisons can be carried out. Especially after the initial confirmation of the positioning point information, secondary confirmation or independent re-measurement should be carried out. This method of multiple verifications helps to improve the installation accuracy and avoid installation position deviations caused by single measurement errors. The finally obtained positioning point information should be updated in real time in the BIM model for use as basic reference data in subsequent component installation and construction supervision.

[0061] Furthermore, based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, to accurately position the spatial position of the steel structure canopy and obtain the positioning point information at the installation site of the steel structure canopy, it further includes:

[0062] During the process of accurate spatial position positioning, multiple measurements are carried out using different spatial measurement equipment, and different measurement results are compared and integrated to improve the accuracy of positioning;

[0063] After obtaining the positioning point information, the positioning result is compared with the BIM model in real time, and an installation deviation report is generated, which includes the deviation direction, magnitude, and position distribution;

[0064] After positioning is completed, the stability of the positioning points is monitored in real time, including dynamically analyzing the environmental factors around the positioning points to ensure the long-term validity of the positioning point information, where the environmental factors include vibration and humidity.

[0065] In the construction of the steel structure canopy based on the BIM model provided in this embodiment, the spatial position of the steel structure canopy is accurately positioned, and the acquisition and analysis process of the positioning point information is further optimized. In this process, first, the spatial positioning parameters of the steel structure canopy components need to be extracted from the BIM model, and these parameters include the three-dimensional coordinates of the components, relative installation angles, alignment points, reference lines, etc. These information provide basic data for accurate positioning at the construction site.

[0066] In the actual process of accurate spatial position positioning, a variety of spatial measurement equipment should be used, including total station, laser scanner, and high-precision GPS positioning system, etc. These equipment should be reasonably arranged and used according to the specific situation of the site and the installation requirements of the components. To improve the accuracy of positioning, multiple measurements are required. Each measurement should be completed independently, and the corresponding measurement results should be recorded. Then, all independent measurement results are compared and integrated to eliminate errors and unstable factors in single measurements. For example, for the same positioning point, if a total station and a laser scanner are used for measurement, higher positioning accuracy can be obtained by integrating the results of the two. At the same time, this method of multiple measurements and comparisons can also improve the reliability of spatial positioning, especially in complex construction environments, which helps to reduce deviations caused by single equipment measurements.

[0067] After obtaining the positioning point information of the steel structure canopy, it is necessary to compare the positioning results with the theoretical positioning data in the BIM model in real time. This step can be achieved through dedicated software tools. By importing the actual measurement results on-site into the system, they are compared with the reference coordinates and angles in the BIM model. The comparison results will generate an installation deviation report, which details the direction, magnitude, and location distribution of the deviation. For example, if there is a 3-cm deviation in the actual installation position of a certain steel beam from the preset position in the model and the direction is eastward, this deviation and its specific location will be clearly marked in the report. This report can help construction personnel promptly understand the current installation accuracy and make adjustments and corrections when necessary.

[0068] After completing the positioning, it is also necessary to monitor the stability of the positioning points in real time to ensure the long-term effectiveness of the positioning point information. Stability monitoring not only focuses on the static position of the components but also considers the surrounding environmental factors that may affect the accuracy and persistence of the positioning points. Specifically, dynamic analysis of vibration and humidity should be carried out. For example, in areas with large vibrations, vibration sensors may need to be used for continuous monitoring to detect whether there are displacement changes exceeding the allowable range; in environments with high humidity, the impact of humidity on the measuring equipment should be considered, and environmental compensation should be carried out when necessary to ensure the accuracy of the positioning. In addition, the monitoring results should be fed back to the BIM model in real time, and the positioning point information should be updated in a timely manner according to the actual situation to ensure the real-time and reliability of all positioning data during the construction process.

[0069] Through the above steps, it is ensured that the spatial position of the steel structure canopy can be accurately positioned in a complex construction environment, and the stability of the installation process and the overall construction quality are improved through multiple measurements, real-time comparison, and dynamic monitoring.

[0070] Step S104: Use the processed steel structure components and the positioning point information for on-site installation to obtain the steel structure canopy with on-site installation completed.

[0071] Step S104 involves using the processed steel structure components and aluminum alloy panels, as well as the previously obtained positioning point information, to actually install the steel structure canopy at the construction site, and finally obtain the steel structure canopy with installation completed.

[0072] First, before on-site installation, it is necessary to conduct on-site inspections on the processed steel structure components and aluminum alloy panels. This step aims to ensure that the dimensions, shapes, and quality of the components meet the design requirements in the BIM model. At the same time, it is also necessary to check whether the identification of each component corresponds to the positioning point information. During the inspection process, special attention should be paid to the interface parts, connection hole positions, and processing accuracy of the components. If any deviations or non-conformities are found, they should be corrected or replaced in a timely manner to ensure the smooth progress of the installation.

[0073] Next, based on the positioning point information obtained in step S103, the construction workers need to transport each component to the corresponding installation position one by one. To ensure the installation accuracy, the components should be kept horizontal and stable during transportation and hoisting. The hoisting equipment should be reasonably configured according to the weight and shape of the components to avoid damage to the components or installation deviations caused by improper equipment or operation errors. When hoisting the component to the positioning point, it is necessary to use a laser rangefinder or total station to measure the spatial position of the component in real time to ensure that the component is accurately aligned with the positioning point.

[0074] After the components are aligned, the construction workers should immediately carry out temporary fixing of the components to ensure the stability of their positions during the installation process. At this time, tools such as temporary support structures, bolts, or buckles should be used to fix the components at the positions preset in the BIM model. This temporary fixing step is particularly important for large or multi-level steel structure canopies because it can prevent the components from shifting or tilting before formal connection.

[0075] When the temporary fixing of all components is completed, the final permanent connection should be carried out. This includes using bolts, welding, or other connection methods to firmly connect the steel structure components and aluminum alloy panels together according to the connection requirements in the BIM model. During the connection process, attention should be paid to the installation sequence and force conditions of each interface to ensure the stability and durability of all connection points. In addition, the connection operation should be carried out according to the construction technology defined in the BIM model. For example, control the temperature and time of welding to avoid component deformation caused by overheating or uneven cooling.

[0076] After all connections are completed, a preliminary structural stability inspection should be carried out on the installed steel structure canopy. This includes evaluating the installation effect of the entire structure through visual inspection, measuring tools, and mechanical tests to confirm that the connection strength and spatial position of all components meet the design requirements. If any position deviation or connection instability is found, on-site adjustments should be made according to the specific situation to ensure that the overall installation quality of the canopy meets the design specifications in the BIM model.

[0077] Furthermore, the on-site installation of the processed steel structure components and the positioning point information to obtain a steel structure canopy completed on-site further includes:

[0078] Before on-site installation, perform intelligent pre-scanning on the installation area, including automated inspections of the construction environment, infrastructure, and installation tools to ensure safety and efficiency during the installation process;

[0079] During the actual installation process, use movable monitoring devices to record videos and collect parameters of key nodes during the installation process, so as to trace back and analyze the overall construction process after installation;

[0080] After installation, conduct a load test on the steel structure canopy to detect its bearing capacity and stability, and feed the test results back to the BIM model in real time for dynamic update.

[0081] In this embodiment, use the processed steel structure components and positioning point information to install the steel structure canopy on-site, and further optimize the preparation before installation, the monitoring during installation, and the inspection after installation.

[0082] Before on-site installation, it is necessary to perform intelligent pre-scanning on the installation area. Intelligent pre-scanning refers to using dedicated equipment and sensors to conduct automated inspections and evaluations of the construction environment, infrastructure, and installation tools. The purpose of intelligent pre-scanning is to ensure the safety and operability of the installation area, as well as the good condition of the tools and equipment. The inspection of the construction environment includes factors such as ground flatness, the spaciousness of the construction space, and the passage path of the lifting equipment. The inspection of the infrastructure involves the reliability of power supply, water supply, and support structures. The inspection of the installation tools requires ensuring that equipment such as cranes, welding equipment, and fastening tools are in good working condition and meet safety usage standards. Through intelligent pre-scanning, potential problems can be discovered in advance and adjusted or corrected before installation to ensure the safety and efficiency of the entire installation process.

[0083] During the actual installation process, it is necessary to use movable monitoring devices to monitor and record key nodes of the installation in real time. These monitoring devices include high-resolution cameras, mechanical sensors, and laser rangefinders, etc. Construction workers can install the monitoring devices at component joints, support points, and other important positions to ensure complete recording of the operation process of key nodes and parameter collection during the installation process. Video recording provides visual materials for tracing back the construction process, while parameter collection can record specific data such as the installation angle of components, connection tightness, and stress distribution. For example, when welding a steel beam, the monitoring device can be used to record the temperature change during the welding process and the forming quality of the weld. These data and image materials can be used to analyze the construction quality and determine whether corrections are needed after installation.

[0084] After installation, a load test needs to be carried out on the steel structure canopy to detect its bearing capacity and stability. The load test is conducted by applying the design load or equivalent load on the structure and observing its stress performance under static and dynamic conditions. The load can be applied through sandbags, hydraulic equipment or other forms, and the deformation, displacement and stress distribution of the structure are monitored during the loading process. The purpose of the test is to verify the structural safety and design consistency of the canopy and ensure that it can withstand the expected load during actual use. In addition, the results of the load test need to be fed back to the BIM model in real time through sensors and data acquisition equipment, dynamically correlating and updating the test data and the model. In this way, the integrity and accuracy of the BIM model can be ensured, providing real-time basic data for subsequent maintenance and evaluation.

[0085] Through the above measures, the installation process of the steel structure canopy is ensured to be safe and orderly, and the stability and bearing capacity of the structure are verified through the load test after installation. This process not only optimizes the construction supervision but also improves the overall quality of the construction and the traceability of data after construction completion.

[0086] Step S105: Use the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware.

[0087] Step S105 involves performing anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware according to the material configuration information provided in the BIM model. First, it is necessary to extract the material information of each component from the BIM model, including the type of steel, coating requirements, surface treatment specifications, and the environmental corrosion grade that may be affected. The material configuration information provided in the BIM model is usually presented in the form of digital data, and this information can directly guide the construction personnel to select the appropriate anti-corrosion materials and treatment methods.

[0088] After determining the specific anti-corrosion materials, it is necessary to prepare the relevant anti-corrosion coatings, equipment and tools. The selection of anti-corrosion coatings should be based on the weather resistance, corrosion resistance and adhesion requirements in the material information. Commonly used anti-corrosion coatings include epoxy resin, polyurethane coatings, zinc-based coatings or nano-composite coatings. Before officially starting the anti-corrosion construction, the water-facing surface of the steel structure canopy and the surface of the small hardware should be cleaned and polished to remove any dirt, rust and impurities that may affect the coating adhesion. This can be accomplished through methods such as high-pressure water flushing, grinding machine polishing or chemical cleaner treatment. The cleaned surface should be kept dry to ensure good coating adhesion.

[0089] During the anti-corrosion construction process, it is necessary to follow the construction sequence and layer requirements specified in the BIM model. Generally, it should be applied in multiple layers, and after each layer is applied, natural or artificial drying is required to ensure the uniformity and strength of the coating. In the anti-corrosion treatment of the water-facing side, special attention should be paid to the thickness and uniformity of the coating. A coating thickness gauge should be used to measure the coating thickness to ensure that it meets the design standards in the BIM model. For key parts such as corners, interfaces, and welding points, additional reinforcement treatment is required, which can be achieved by locally thickening or applying multiple coats to improve the corrosion resistance of these parts.

[0090] For the anti-corrosion treatment of small hardware parts, they need to be temporarily disassembled from the main structure for separate treatment. The selection of anti-corrosion coatings should take into account the material type and size requirements of the small hardware parts. Usually, dipping, spraying, or electroplating methods are used for treatment. After the anti-corrosion coating is applied, the small hardware parts should be dried and cured to ensure the complete adhesion and stability of the coating. After the anti-corrosion treatment of the small hardware parts is completed, they should be reinstalled on the steel structure canopy and tightened and adjusted to ensure their functionality and structural safety.

[0091] After the entire anti-corrosion treatment is completed, a preliminary inspection of the anti-corrosion effect is required, including visually inspecting the integrity of the coating, measuring the coating thickness, and conducting a simple adhesion test. If the test results meet the design requirements in the BIM model, the next step of construction or acceptance can be carried out; if it is found that the coating is uneven, the thickness is insufficient, or the adhesion is poor, corresponding supplementary coating or re-treatment is required to ensure that the anti-corrosion effect meets the expected standards.

[0092] Furthermore, the anti-corrosion treatment of the water-facing side of the installed steel structure canopy and related small hardware parts using the material configuration information provided in the BIM model also includes:

[0093] Before the anti-corrosion treatment, generate a personalized anti-corrosion construction plan according to the material information in the BIM model, including the selection of anti-corrosion coatings for different component surfaces and the automatic allocation of construction tools;

[0094] During the construction process of the anti-corrosion coating, use environmental sensors to monitor the temperature, humidity, and wind speed of the construction environment in real time, and adjust the coating construction method according to environmental changes;

[0095] After the anti-corrosion treatment is completed, generate an anti-corrosion effect prediction report using the historical data in the BIM model. This report includes the prediction of coating life, the evaluation of the adhesion of the anti-corrosion layer, and the analysis of potential corrosion risks.

[0096] In this embodiment, the facing surface of the installed steel structure canopy and related small hardware are subjected to anti-corrosion treatment using the material configuration information provided in the BIM model, and the formulation of the anti-corrosion construction plan, the monitoring of the construction environment, and the evaluation of the anti-corrosion effect are further optimized.

[0097] Before starting the anti-corrosion treatment, it is necessary to generate a personalized anti-corrosion construction plan based on the material information in the BIM model. The BIM model contains detailed information such as the type of component material, surface treatment requirements, corrosion resistance level, and installation location. Based on this information, the system will automatically analyze the anti-corrosion requirements of each component and generate a personalized coating selection plan. For example, for large steel structure components on the facing surface, a thick-layer epoxy coating with strong weather resistance can be selected, while for small hardware, a thin-layer rust-proof paint or electroplating process may be used. The personalized construction plan also includes the automatic allocation of construction tools, such as the type of spraying machine, nozzle diameter, and pressure setting of the paint pump. This personalized plan ensures that the anti-corrosion treatment of each component highly matches its material characteristics and exposure environment, improving the construction efficiency and anti-corrosion effect.

[0098] During the construction process of the anti-corrosion coating, it is necessary to continuously monitor parameters such as the temperature, humidity, and wind speed of the construction environment. These environmental conditions have a direct impact on the adhesion and curing speed of the coating. To ensure the uniformity and quality of the coating, continuous monitoring should be carried out through environmental sensors. For example, when the temperature is too high, the coating may dry too quickly, resulting in a decrease in adhesion; in the case of too high humidity, the coating may not cure completely, thus affecting its anti-corrosion performance. The system should automatically adjust the construction method according to the sensor data. For example, appropriately extend the coating interval time, adjust the paint ratio, or take temporary shielding measures to ensure the stability of the construction environment. Such dynamic adjustment can adapt to complex construction conditions and ensure the uniform coating and long-term durability of the anti-corrosion coating.

[0099] After the anti-corrosion treatment is completed, it is necessary to generate an anti-corrosion effect prediction report. This report is analyzed based on the historical data in the BIM model and the real-time data collected during the construction process, specifically including the life prediction of the coating, the adhesion evaluation of the anti-corrosion layer, and potential corrosion risks. The life prediction is calculated based on the characteristics of the coating material, construction thickness, and environmental conditions, providing an estimate of the service life of the coating in different corrosion environments. The adhesion evaluation analyzes the results of the pull-off test or other non-destructive tests of the coating to determine the adhesion degree of the coating to the component surface. The analysis of potential corrosion risks evaluates possible corrosion hazards by combining the component material, coating performance, and construction environment conditions recorded in the BIM model. This prediction report provides an important reference for subsequent maintenance and repair to ensure the effective protection of the steel structure canopy during use.

[0100] Step S106: Use the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment; according to the results of the spatial position verification, correct the components of the steel structure canopy.

[0101] Step S106 involves using the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment and correcting the components according to the verification results. First, before the spatial position verification, it is necessary to extract the spatial positioning parameters of the steel structure canopy from the BIM model again, including the three-dimensional coordinates, installation angles, and spatial alignment requirements of each component. These positioning parameters will be used as the reference data for the spatial position verification.

[0102] The first step in on-site position verification is to select appropriate measuring equipment. Commonly used equipment includes laser scanners, total stations, and UAV mapping systems, etc. According to the on-site environment and the structural complexity of the canopy, select the appropriate measuring equipment for three-dimensional scanning. During the measurement process, ensure that the placement position, measurement angle, and measurement range of the equipment cover the entire steel structure canopy, especially the water-facing surface and key connection parts. Through scanning and measurement, obtain the actual spatial point cloud data after installation, which reflects the actual spatial position of the components.

[0103] After obtaining the actual spatial point cloud data, it is necessary to compare it with the theoretical spatial positioning parameters in the BIM model. The comparison process can use special software tools. By importing the actual point cloud data into the software, it is automatically aligned and matched with the theoretical coordinates in the BIM model. This comparison process can accurately identify the position deviations of each component, including the offset, changes in the rotation angle, and misalignment of the connection points. The comparison results will generate a deviation report, which details the deviation values and deviation directions of each component.

[0104] According to the results in the deviation report, correct the components whose position deviations exceed the preset allowable range. The correction measures should include specific operations such as realigning, refixing, or reconnecting the components. For example, for a steel beam with a large horizontal deviation, it may be necessary to correct it by adjusting the support structure or reinforcing the connection part again; for the case of vertical deviation, it may be necessary to correct the height of the component by replacing the gasket or readjusting the bolt connection. During the correction process, it is necessary to use the measuring equipment again to confirm the correction effect in real time to ensure that the component position is adjusted in place.

[0105] After the correction is completed, a second spatial position verification should be carried out to confirm that the position deviations of all components have been corrected and are exactly aligned with the theoretical positions in the BIM model. If any non-compliant deviations are still found during the re-verification, further refined adjustments should be made until all position parameters meet the design requirements in the BIM model. The final verification results should be recorded in the BIM model to ensure the data integrity of the entire construction process and the accuracy of subsequent maintenance.

[0106] Furthermore, using the data in the BIM model to perform spatial position verification on the steel structure canopy after anti-corrosion treatment includes:

[0107] During the spatial position verification process after anti-corrosion treatment, multiple verification methods are used for multiple verifications, including laser rangefinders, total stations, and UAV mapping technology;

[0108] During the verification process, dynamic comparison of components in the BIM model is carried out, and the dynamic comparison includes the real-time position, spatial angle, and installation accuracy of the components;

[0109] After the position verification is completed, a spatial deviation report is generated, including the distribution of deviation points, deviation value statistics, and spatial adjustment suggestions.

[0110] In this embodiment, the data in the BIM model is used to perform spatial position verification on the steel structure canopy after anti-corrosion treatment to ensure the accurate installation position of the components. After the anti-corrosion treatment is completed, it is necessary to perform multiple verifications on the spatial position of the steel structure canopy and use multiple measurement methods to ensure accuracy and reliability. To comprehensively obtain the spatial data of the steel structure canopy, it is recommended to use a combination of laser rangefinders, total stations, and UAV mapping technology for measurement.

[0111] In specific operations, a laser rangefinder can be used to measure the key positions of the canopy and the height, width, and length of the structure to ensure the accuracy of the distance information at each measurement point. A total station can be used to further verify the angles and spatial alignment of the components, especially for the precise positioning of connection nodes and support points. UAV mapping technology can provide an overall three-dimensional spatial perspective, capture the global installation status, and identify possible subtle deviations through high-precision image data. The comprehensive use of these multiple measurement methods helps to cover measurement requirements at different angles and scales and improve the comprehensiveness and accuracy of the overall spatial verification.

[0112] During the verification process, it is necessary to dynamically compare the actual measurement results with the component data in the BIM model. Specifically, the real-time position, spatial angle, and installation accuracy of each component should be checked one by one against the theoretical parameters in the BIM model. For example, if there is an offset in the actual position of a certain steel beam relative to the designed position in the BIM model, the system will display the size and direction of the offset in real time. During the dynamic comparison process, the system will continuously update the measurement data and graphically display the differences between the actual and theoretical positions. This dynamic comparison is not limited to a single component but should also include the relative positions between components and the overall spatial coordination to ensure that the installation accuracy of the entire canopy structure in three-dimensional space meets the design requirements.

[0113] After the position verification is completed, a detailed spatial deviation report needs to be generated. This report should include the specific distribution of deviation points, the numerical statistics of each deviation, and suggestions for possible spatial adjustments. For example, if the deviations of certain components exceed the preset allowable range, the report will indicate the specific positions of these deviation points and possible correction plans, such as repositioning or adjusting the connection angle, etc. In addition, the deviation report should also include an overall analysis of the deviation distribution, such as whether the deviations are concentrated in specific areas or certain component types, in order to provide a reference for subsequent construction adjustments and quality management. The generation and analysis of such a report will ensure the high-precision installation of the canopy structure in terms of spatial position and provide basic data for further maintenance and optimization.

[0114] Furthermore, use the data in the BIM model to verify the spatial positions of the steel structure canopy components after anti-corrosion treatment; according to the results of the spatial position verification, correct the steel structure canopy components, including:

[0115] First, use a laser scanner to perform three-dimensional scanning on the steel structure canopy after anti-corrosion treatment to obtain the actual installation point cloud data P actual ={(x i , y i , z i )|i = 1, 2, …, n}, where n is the number of scanning points;

[0116] Extract the theoretical installation point cloud data P theory ={(X j , X j , Z j )|j = 1, 2, …, m} from the BIM model, where m is the number of nodes defined in the BIM model;

[0117] Adopt the multi-level iterative closest point algorithm for the actual installation point cloud data P actual and the theoretical installation point cloud data P theoryAlignment processing is performed to obtain the optimal rotation matrix R1 and the optimal translation vector t1. Among them, the multi-level iterative closest point algorithm uses the optimization objective function F(R, T) provided by the following formula 1:

[0118]

[0119] Among them, R is the rotation matrix, which is used to adjust the rotation angle of the actual point cloud; t is the translation vector, which is used to adjust the position of the actual point cloud; γ ij is the registration weight factor; σ is the Gaussian kernel parameter, which is used to smooth the error;

[0120] Based on the optimal rotation matrix R1 and the optimal translation vector t1, the coordinates (x′ i , y′ i , z′ i ) of the aligned actual point cloud are obtained;

[0121] According to the following formula 2, the weighted Euclidean distance matrix D i , y i , z i ) of the aligned actual point cloud (x j , Y j , Z j ) and the theoretical point cloud (X ij :

[0122]

[0123] Among them, w x , w y , w z are the weight coefficients;

[0124] According to the following formula 2, the comprehensive deviation is calculated:

[0125] Define the deviation evaluation function:

[0126]

[0127] Among them, E represents the comprehensive deviation, which is used to measure the overall error; w i is the weight factor of each actual point; β is the adjustment coefficient, which is used to balance the deviation and stability; γ ij is the registration weight factor, which is the same content as the registration weight factor in formula 1; D ij represents the weighted Euclidean distance between the i-th actual point and the j-th theoretical point;

[0128] When the calculated comprehensive deviation E exceeds the preset threshold τ, the non-linear correction process is triggered, and the correction amount δ of the non-linear correction process is calculated using the following formula 4:

[0129] δ = α·tanh(λ·(E - τ)) (4)

[0130] Where δ is the non - linear correction amount for controlling the adjustment of the actual installation position; α is the correction coefficient for controlling the correction amplitude; λ is the adjustment parameter;

[0131] According to the calculated correction amount δ, a refined component adjustment plan is generated using the parametric constraint relationship in the BIM model;

[0132] The refined component adjustment plan is fed back to the on - site construction personnel through a digital construction terminal to guide them in correcting the installation of the steel structure canopy.

[0133] First, it is necessary to use a laser scanner to perform three - dimensional scanning on the steel structure canopy after anti - corrosion treatment. During the scanning process, the actual spatial position of the canopy is captured with high precision by the device, and the actual installation point cloud P actual ={(x i ,y i ,z i )∣i = 1,2,…,n} is obtained, where n is the number of scanning points. These point cloud data represent the actual installation state of the canopy in three - dimensional space, ensuring that all key nodes and surface features can be completely recorded.

[0134] Next, the theoretical installation point cloud data P theory ={(X j ,Y j ,Z j )∣k = 1,2,…,m} is extracted from the BIM model, where m is the number of nodes defined in the BIM model. The theoretical installation point cloud is the ideal installation position generated according to the design specifications and modeling results. By comparing the actual installation point cloud with the theoretical point cloud, the installation accuracy can be evaluated.

[0135] To achieve the alignment of the actual point cloud and the theoretical point cloud, the multi - level iterative closest point algorithm (ICP) is adopted. This algorithm continuously optimizes the matching degree of the point cloud through multiple iterations. Specifically, the optimization objective function F(R,T) is used to calculate the optimal rotation matrix R1 and the optimal translation vector t1 to minimize the distance between the actual point cloud and the theoretical point cloud. The objective function is calculated by the following formula:

[0136]

[0137] Where R is the rotation matrix for adjusting the rotation angle of the point cloud; t is the translation vector for adjusting the position of the point cloud; γ ij is the registration weight factor for controlling the matching weight of different point pairs; σ is the Gaussian kernel parameter for smoothing the error. After the optimization is completed, the aligned actual point cloud coordinates (x′i , y' i , z' i ). n is the number of scanning points; m is the number of nodes defined in the BIM model.

[0138] By comparing the aligned actual point cloud and the theoretical point cloud, calculate the weighted Euclidean distance matrix D ij , and its calculation formula is:

[0139]

[0140] where w x , w y , w z are weight coefficients, which respectively adjust the error weights in different directions. These distance values are used to measure the alignment degree of components in different directions.

[0141] To evaluate the overall deviation, a comprehensive deviation function E is defined:

[0142]

[0143] where w i is the weight factor of each actual point, reflecting its importance in installation; β is an adjustment coefficient used to balance deviation and stability. γ ij is the registration weight factor, which is the same content as the registration weight factor in formula (1); D ij represents the weighted Euclidean distance between the i-th actual point and the j-th theoretical point; E represents the overall error. If E exceeds the preset threshold τ, correction is required. n is the number of scanning points; m is the number of nodes defined in the BIM model.

[0144] During the correction process, calculate the non-linear correction amount δ, and its formula is:

[0145] δ = α · tanh(λ · (E - τ)) (4)

[0146] where δ is the non-linear correction amount, used to control the adjustment of the installation position; α is the correction coefficient, controlling the correction amplitude; λ is the adjustment parameter, and the introduction of the hyperbolic tangent function ensures the smoothness of the correction process.

[0147] Using the calculated correction amount δ, combined with the parametric constraint relationship in the BIM model, generate a refined component adjustment plan. The adjustment plan is fed back to the on-site construction personnel through the digital construction terminal to guide them to make necessary adjustments to ensure that the final installation position of the steel structure canopy meets the design requirements.

[0148] To implement the generation of a refined component adjustment plan by combining the calculated correction amount δ with the parametric constraint relationships in the BIM model, it is necessary to consider the specific value of the correction amount and the geometric features, connection relationships, and structural constraints of the components in the BIM model. The following uses a detailed example to explain this process.

[0149] Suppose during the construction of a steel structure canopy, after the position verification of a certain key steel beam after actual installation, it is found that there is a deviation from the designed position. Through measurement and comparison during the position verification, the comprehensive deviation E between the actual point cloud and the theoretical point cloud is obtained. Using the non-linear correction formula, the calculated correction amount δ is:

[0150] δ=(δ x ,δ y ,δ z )=(2.5cm, ―1.8cm, 3.2cm)

[0151] This means that the steel beam needs to be moved 2.5 centimeters to the right in the X direction, adjusted 1.8 centimeters downward in the Y direction, and raised 3.2 centimeters upward in the Z direction. The output of Formula 4 is a scalar correction amount, which describes the comprehensive correction amplitude that should be carried out in all directions. If specific adjustments are required in different directions, this scalar correction amount needs to be further decomposed into vector forms in the X, Y, and Z directions, so as to achieve a full-range vector correction of the actual installation position.

[0152] When generating a refined component adjustment plan, it is necessary to combine the parametric constraint relationships in the BIM model. These constraint relationships include the geometric dimensions of the steel beam, the connection methods with other components, and the fixing conditions with the foundation structure. The following are the specific implementation steps:

[0153] 1. Analyze geometric dimensions and spatial position constraints:

[0154] In the BIM model, the geometric dimensions of the steel beam include the length, cross-sectional shape, and specific positions of the connection nodes. Based on these dimensions, the initial state of the steel beam in three-dimensional space can be determined. The correction amount δ indicates the offset in the X, Y, and Z directions. Therefore, it is necessary to parametrically adjust the positions of the steel beam nodes in the BIM model. For example, if the length of the steel beam is 8 meters, the 2.5 - centimeter offset in the X direction needs to be achieved through overall translation.

[0155] 2. Process the adjustment of connection nodes:

[0156] Steel beams are usually connected to other components by bolts or welding. Therefore, the adjustment plan needs to consider the changes in these connection points. For example, the connection nodes between steel beams and columns usually have bolt holes, and the parametric constraint relationships show the center positions of these bolt holes. During the adjustment process, the bolt holes need to be moved 2.5 cm, -1.8 cm, and 3.2 cm in the X, Y, and Z directions respectively, while ensuring that the size and shape of the bolt holes remain unchanged. The BIM model will update the parametric data of the connection points to reflect the corrected bolt hole positions.

[0157] 3. Consider the associated adjustment between components:

[0158] The adjustment of the steel beam not only affects its own position but may also affect other components connected to it. For example, there may be a support structure between the steel beam and the aluminum alloy panel. According to the parametric relationships in the BIM model, the position of the support points of the aluminum alloy panel needs to be adjusted accordingly to ensure that the panel can still be correctly connected to the steel beam after the steel beam is adjusted. For example, if the connection point between the panel and the steel beam has an offset of 2.5 cm in the X direction, then the connectors on the panel also need to be displaced accordingly.

[0159] 4. Generate a refined adjustment plan

[0160] Based on the correction amount δ and the parametric constraint relationships, the BIM model will generate a detailed adjustment plan, including the specific adjustment steps for each component. For example:

[0161] Move the steel beam: Translate 2.5 cm in the X direction; lower 1.8 cm in the Y direction; raise 3.2 cm in the Z direction.

[0162] Relocate the bolt holes: Make the same three-dimensional position adjustment for the bolt holes at the connection nodes.

[0163] Adjust the support panel: Make synchronous adjustments at the support points of the aluminum alloy panel to ensure that the panel is aligned with the steel beam.

[0164] Supplement materials or supports: If additional supports or shims are required during the adjustment of the steel beam, the required materials, dimensions, and positions will be listed in the BIM model.

[0165] Furthermore, use the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware, including:

[0166] Extract the material properties, exposure environment categories, and design service life of each component of the steel structure canopy from the BIM model;

[0167] According to the extracted information, calculate the corrosion risk index CRI of each component using the following formula 5:

[0168]

[0169] Among them, E f is the environmental factor; M f is the material factor; T f is the stress factor; t is the designed service life; δ f is the dynamic risk adjustment factor; α, β, γ, β1 are weight coefficients;

[0170] According to the calculated corrosion risk coefficient CRI, the components are divided into three corrosion risk levels: high (for example, the corrosion risk coefficient is greater than 5), medium (for example, the corrosion risk coefficient is between 2 and 5), and low (for example, the corrosion risk coefficient is less than 2);

[0171] For components with a high risk level, nano-composite anti-corrosion coatings are used, and the coating thickness d h is calculated using the following formula

[0172] 6:

[0173]

[0174] Among them, d base is the base coating thickness; k1, k2, k3 are correction coefficients; δ f is the dynamic risk adjustment factor, which is the same as the dynamic risk adjustment factor in formula 5;

[0175] For components with a medium risk level, epoxy zinc-rich primer is used in combination with polyurethane topcoat, and the coating thickness d m is calculated using the following formula 7:

[0176]

[0177] Among them, k4 is the adjustment coefficient; d base is the base coating thickness;

[0178] For components with a low risk level, conventional anti-rust paint (for example, alkyd anti-rust paint) is used, and the coating thickness d l is calculated using the following formula 8:

[0179]

[0180] Among them, k5 is the proportionality coefficient; d base is the base coating thickness;

[0181] According to the calculated base coating thickness, anti-corrosion treatment is carried out.

[0182] In this embodiment, the exposed surface of the installed steel structure canopy and related small hardware are subjected to anti-corrosion treatment using the material configuration information provided in the BIM model. First, the material properties, exposure environment categories, and design service life of each component are extracted from the BIM model. This information is used to evaluate the actual corrosion risk of the components. The material properties include material type, surface treatment, and corrosion resistance; the exposure environment category describes the usage conditions of the components in different environments, such as high humidity, strong acidity, or coastal environments; the design service life refers to the expected service life of the components under ideal conditions.

[0183] Based on the extracted information, the corrosion risk index (CRI) of each component is calculated using the following formula:

[0184]

[0185] In the formula, E f represents the environmental factor, which is determined according to the environmental corrosivity level; M f is the material factor, which reflects the corrosion resistance of the material; T f is the stress factor, which represents the stress level of the component under load; t is the design service life, which reflects the corrosion change of the component in different usage cycles; δ f is the dynamic risk adjustment factor, which takes into account the impact of real-time environmental changes on the corrosion risk. Through this calculation, the corrosion potential of the component in the actual environment can be accurately evaluated.

[0186] According to the calculated corrosion risk index (CRI), the components are classified into three corrosion risk levels: high, medium, and low. Components with a high risk level mean that they are prone to rapid corrosion in the exposure environment, while components with medium and low risk levels are relatively stable. To adapt to different risk levels, the anti-corrosion treatment schemes will also vary.

[0187] For components with a high risk level, nano-composite anti-corrosion coatings are used to ensure higher anti-corrosion performance. The coating thickness d h is calculated using the following formula:

[0188]

[0189] where d base is the base coating thickness, and k1, k2, and k3 are correction factors used to adjust the coating thickness to ensure that the coating has sufficient durability in a high-corrosion environment.

[0190] For components with a medium risk level, a combination of epoxy zinc-rich primer and polyurethane topcoat is used. The coating thickness d m is calculated using the following formula:

[0191]

[0192] Among them, k4 is an adjustment coefficient. By increasing or decreasing the coating thickness, it is ensured that medium-risk components have sufficient anti-corrosion ability in the daily environment.

[0193] For components with a low risk level, conventional anti-rust paint is used, and the coating thickness d l is calculated as follows:

[0194]

[0195] Among them, k5 is a proportionality coefficient to ensure that the coating thickness can adapt to a lower corrosion risk environment.

[0196] Based on the calculated basic coating thickness above, actual anti-corrosion treatment is carried out on each component. During the anti-corrosion construction process, corresponding coating materials and thicknesses should be used according to the risk levels of different components to ensure the uniformity and adhesion of the coating. This precise anti-corrosion treatment plan can effectively improve the corrosion resistance of the steel structure canopy and extend the service life of the components.

[0197] In the above embodiment, a BIM-based construction supervision method for a steel structure canopy is provided. Correspondingly, the present application also provides a BIM-based construction supervision system for a steel structure canopy. Since this embodiment, that is, the second embodiment, is basically similar to the method embodiment, the description is relatively simple. For related parts, refer to the partial description of the method embodiment. The method embodiment described below is only illustrative.

[0198] The second embodiment of the present application provides a BIM-based construction supervision system for a steel structure canopy, including:

[0199] A modeling unit 201, configured to use building information modeling (BIM) technology to perform three-dimensional modeling on the steel structure canopy to generate a BIM model. Among them, the BIM model includes profile parameters and spatial positioning parameters of the components of the steel structure canopy, and the components of the steel structure canopy include steel structure components and aluminum alloy panels;

[0200] An extraction unit 202, configured to extract the profile parameters of the main components based on the BIM model; and obtain the processed steel structure components and aluminum alloy panels according to the profile parameters and spatial positioning parameters of the main components;

[0201] A combination unit 203, configured to accurately position the spatial position of the steel structure canopy based on the spatial positioning parameters of the components of the steel structure canopy in the BIM model and in combination with spatial measurement equipment, and obtain the positioning point information of the installation site of the steel structure canopy;

[0202] An installation unit 204 for performing on-site installation by using the processed steel structure components and the positioning point information to obtain a steel structure canopy with on-site installation completed;

[0203] A processing unit 205 for performing anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware by using the material configuration information provided in the BIM model;

[0204] A verification unit 206 for verifying the spatial position of the steel structure canopy after anti-corrosion treatment by using the data in the BIM model; and correcting the steel structure canopy components according to the result of the spatial position verification.

[0205] The third embodiment of the present application provides an electronic device, which includes:

[0206] A processor;

[0207] A memory for storing a program, which when read and executed by the processor, executes the BIM-based construction supervision method for steel structure canopies provided in the first embodiment of the present application.

[0208] The fourth embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it executes the BIM-based construction supervision method for steel structure canopies provided in the first embodiment of the present application.

[0209] Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be determined by the scope defined by the claims of the present application.

Claims

1. A construction supervision method for steel structure canopy based on BIM, characterized in that Including: Using Building Information Modeling (BIM) technology to perform three-dimensional modeling on a steel structure canopy to generate a BIM model. Among them, the BIM model includes profile parameters and spatial positioning parameters of the steel structure canopy components, and the steel structure canopy components include steel structure components and aluminum alloy panels; Based on the BIM model, extract the profile parameters of the steel structure canopy components; according to the profile parameters and spatial positioning parameters of the steel structure canopy components, obtain the processed steel structure components and aluminum alloy panels; Based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, accurately position the spatial position of the steel structure canopy to obtain the positioning point information of the installation site of the steel structure canopy; Use the processed steel structure components and the positioning point information for on-site installation to obtain a steel structure canopy with on-site installation completed; Use the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware; Use the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment; according to the results of the spatial position verification, correct the steel structure canopy components; Among them, the step of using the material configuration information provided in the BIM model to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware also includes: Before performing anti-corrosion treatment, generate a personalized anti-corrosion construction plan according to the material information in the BIM model, including the selection of anti-corrosion coatings for different component surfaces and the automatic allocation of construction tools; During the construction of the anti-corrosion coating, use environmental sensors to monitor the temperature, humidity, and wind speed of the construction environment in real time, and adjust the coating construction method according to environmental changes; After anti-corrosion treatment, generate an anti-corrosion effect prediction report using the historical data in the BIM model. The anti-corrosion effect prediction report includes coating life prediction, anti-corrosion layer adhesion evaluation, and potential corrosion risk analysis.

2. The BIM-based construction supervision method for steel structure canopy according to claim 1, characterized in that, The step of using Building Information Modeling (BIM) technology to perform three-dimensional modeling on a steel structure canopy to generate a BIM model includes: During three-dimensional modeling, classify and manage the component information in the BIM model, including independently identifying and storing different parameters of steel structure components and aluminum alloy panels; Based on the characteristics of different component types, perform multi-level visual annotation on the model, including the dynamic display of component material, weight, and size information; After three-dimensional modeling is completed, associate the steel structure components and aluminum alloy panels in the model with their material databases respectively to achieve real-time synchronous update of component materials and the BIM model.

3. The BIM-based construction supervision method for steel structure canopy according to claim 1, wherein, The step of based on the BIM model, extracting the profile parameters of the steel structure canopy components also includes: When extracting profile parameters, extract the surface treatment requirements of the components together and generate a corresponding construction material list to facilitate quality control during subsequent processing and installation; Perform multiple verifications on the extracted profile parameters of the steel structure canopy components, including comparing with design standards, and generating an automatic alarm for parameters with deviations exceeding the preset value.

4. The construction supervision method for steel structure canopy based on BIM according to claim 1, characterized in that, Based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with spatial measurement equipment, accurately position the spatial position of the steel structure canopy to obtain the positioning point information at the installation site of the steel structure canopy, further including: During the accurate spatial positioning process, use different spatial measurement equipment for multiple measurements, and compare and integrate different measurement results to improve the accuracy of positioning; After obtaining the positioning point information, compare the positioning result with the BIM model in real time, and generate an installation deviation report, which includes the deviation direction, magnitude, and position distribution; After positioning is completed, monitor the stability of the positioning points in real time, including dynamically analyzing the environmental factors around the positioning points to ensure the long-term validity of the positioning point information, where the environmental factors include vibration and humidity.

5. The BIM-based construction supervision method for steel structure canopy according to claim 1, characterized in that Using the processed steel structure components and the positioning point information to carry out on-site installation to obtain the steel structure canopy completed on-site installation, further including: Before on-site installation, conduct an intelligent pre-scan of the installation area, including automated inspections of the construction environment, infrastructure, and installation tools to ensure safety and efficiency during the installation process; During the actual installation process, use movable monitoring equipment to record videos and collect parameters of key nodes during the installation process for retrospective analysis of the overall construction process after installation; After installation is completed, conduct a load test on the steel structure canopy to detect its bearing capacity and stability, and feedback the test results to the BIM model in real time for dynamic update.

6. The construction supervision method of the steel structure canopy based on BIM according to claim 1, characterized in that, Using the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment, including: During the spatial position verification process after anti-corrosion treatment, use a variety of measurement means for multiple verifications, including laser rangefinders, total stations, and UAV mapping technology; During the verification process, conduct dynamic comparison of the components in the BIM model, and the dynamic comparison includes the real-time position, spatial angle, and installation accuracy of the components; After the position verification is completed, generate a spatial deviation report, including the distribution of deviation points, deviation value statistics, and spatial adjustment suggestions.

7. The construction supervision method for steel structure canopy based on BIM according to claim 1, characterized in that, Using the data in the BIM model to verify the spatial position of the steel structure canopy after anti-corrosion treatment; According to the results of the spatial position verification, correct the steel structure canopy components, including: First, use a laser scanner to perform three-dimensional scanning on the steel structure canopy after anti-corrosion treatment to obtain the actual installation point cloud data , where is the number of scanning points; Extract the theoretical installation point cloud data from the BIM model , where is the number of nodes defined in the BIM model; Use the multi-level iterative closest point algorithm for the actual installation point cloud data and the theoretical installation point cloud data to perform alignment processing to obtain the optimal rotation matrix and the optimal translation vector , where the multi-level iterative closest point algorithm uses the optimization objective function provided by the following formula 1 : Among them, is a rotation matrix for adjusting the rotation angle of the actual point cloud; is a translation vector for adjusting the position of the actual point cloud; is a registration weight factor; is a Gaussian kernel parameter for smoothing the error; Based on the optimal rotation matrix and the optimal translation vector the actual point cloud coordinates after alignment are obtained ; Calculate the actual aligned point cloud according to the following formula 2 and the theoretical point cloud of the weighted Euclidean distance matrix : Among them, is the weight coefficient; Calculate the comprehensive deviation according to Formula 2 as follows: Among them, represents the comprehensive deviation, which is used to measure the overall error; is the weight factor for each actual point; is the adjustment coefficient, which is used to balance the deviation and stability; is the registration weight factor, which is the same as the registration weight factor in Formula 1; represents the th actual point and the th theoretical point, and the weighted Euclidean distance between them; When the calculated comprehensive deviation exceeds a preset threshold a non - linear correction process is triggered, where the correction amount of the non - linear correction process is calculated using the following formula 4: Among them, is the non-linear correction amount, which is used to control the adjustment of the actual installation position; is the correction coefficient, which is used to control the correction amplitude; is the adjustment parameter; According to the calculated correction amount , using the parametric constraint relationship in the BIM model, a refined component adjustment plan is generated; Through the digital construction terminal, feedback the refined component adjustment plan to the on-site construction personnel to guide them to correct the installation of the steel structure canopy.

8. The construction supervision method of the steel structure canopy based on BIM according to claim 1, characterized in that, Using the material configuration information provided in the BIM model to carry out anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware, including: Extract the material properties, exposure environment categories, and design service life of each component of the steel structure canopy from the BIM model; According to the extracted information, the corrosion risk coefficient of each component is calculated using the following formula 5 : wherein, is an environmental factor; is a material factor; is a stress factor; is the designed service life; is the dynamic risk adjustment factor; is the weight coefficient; According to the calculated corrosion risk coefficient , the components are divided into three corrosion risk levels: high, medium, and low. For high-risk level components, a nano-composite anti-corrosion coating is used, and the coating thickness is calculated using the following formula 6: Among them, is the base coating thickness; is the correction coefficient; For medium-risk components, use epoxy zinc-rich primer in combination with polyurethane topcoat, and the coating thickness is calculated using the following formula 7: Among them, is the adjustment coefficient; is the base coating thickness; For components with a low risk level, conventional anti-rust paint is used, and the coating thickness is calculated using the following formula 8: Among them, is the proportionality coefficient; is the base coating thickness; Carry out anti-corrosion treatment according to the calculated basic coating thickness.

9. A BIM-based construction supervision system for steel structure canopies, characterized in that, Including: A modeling unit, which is used to perform three-dimensional modeling on a steel structure canopy by using Building Information Modeling (BIM) technology to generate a BIM model. Among them, the BIM model includes the profile parameters and spatial positioning parameters of the steel structure canopy components, and the steel structure canopy components include steel structure components and aluminum alloy panels; An extraction unit, which is used to extract the profile parameters of the steel structure canopy components based on the BIM model; and obtain the processed steel structure components and aluminum alloy panels according to the profile parameters and spatial positioning parameters of the steel structure canopy components; A combination unit, which is used to accurately locate the spatial position of the steel structure canopy based on the spatial positioning parameters of the steel structure canopy components in the BIM model and in combination with a spatial measurement device, and obtain the positioning point information of the installation site of the steel structure canopy; An installation unit, which is used to perform on-site installation by using the processed steel structure components and the positioning point information to obtain a steel structure canopy with on-site installation completed; A processing unit, which is used to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware by using the material configuration information provided in the BIM model; A verification unit, which is used to verify the spatial position of the steel structure canopy after anti-corrosion treatment by using the data in the BIM model; and correct the steel structure canopy components according to the result of the spatial position verification; Among them, the processing unit is further used for: Before performing anti-corrosion treatment, generate a personalized anti-corrosion construction plan according to the material information in the BIM model, including the selection of anti-corrosion coatings on the surfaces of different components and the automatic allocation of construction tools; During the construction of the anti-corrosion coating, use environmental sensors to monitor the temperature, humidity and wind speed of the construction environment in real time, and adjust the coating construction method according to the environmental changes; After the anti-corrosion treatment is completed, generate an anti-corrosion effect prediction report by using the historical data in the BIM model, and the anti-corrosion effect prediction report includes coating life prediction, anti-corrosion layer adhesion evaluation and potential corrosion risk analysis.

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