BIM-based steel structure canopy construction supervision method and system

Abstract

The invention relates to a BIM-based steel structure canopy construction supervision method and system. Efficient construction and accurate management of a steel structure canopy are realized through a series of steps. The method comprises the following steps: firstly, carrying out three-dimensional modeling on a steel structure canopy by utilizing a building information model technology, and generating a BIM model comprising component profile parameters and spatial positioning parameters; and based on the model, extracting profile parameters of main components, and obtaining the processed steel structural component and the processed aluminum alloy panel. Next, the site is accurately positioned according to the positioning parameters of the BIM model, positioning point information of the installation site is obtained, and site installation of the steel structure canopy is completed. And after installation is completed, according to material configuration information in the BIM model, anti-corrosion treatment is conducted on the upstream face and the related small hardware. And finally, through data of the BIM model, carrying out spatial position verification on the canopy after anticorrosion processing, and correcting the positions of the components according to a verification result. According to the method, the construction precision, the material utilization rate and the convenience of later maintenance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of computer-aided building structure design, and in particular to a BIM-based steel structure canopy construction supervision method and system. Background Art

[0002] In the existing technology, 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, supporting the design, construction and operation and maintenance management of complex building components in the form of three-dimensional visualization and information integration, and showing certain advantages in improving engineering efficiency and reducing error rates.

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

[0004] Therefore, in view of the above-mentioned problems in the prior art, it is necessary to develop a new BIM-based steel structure canopy construction supervision method. Summary of the invention

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

[0006] This application provides a BIM-based steel structure canopy construction supervision method, 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 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;

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

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

[0010] Using the processed steel structure components and the positioning point information, on-site installation is performed to obtain a steel structure canopy that has been installed on-site;

[0011] Use 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;

[0012] The data in the BIM model is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment is completed; according to the results of the spatial position verification, the steel structure canopy components are corrected.

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

[0014] A modeling unit, used to perform three-dimensional modeling of the steel structure canopy by using a building information model (BIM) technology to generate a BIM model, wherein the BIM model includes profile parameters and spatial positioning parameters of steel structure canopy components, and the steel structure canopy components include steel structure components and aluminum alloy panels;

[0015] An extraction unit is used 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;

[0016] A combining unit 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 measuring device, so as to obtain the positioning point information of the installation site of the steel structure canopy;

[0017] An installation unit is used to use the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy that has been installed on-site;

[0018] The processing unit is used to 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;

[0019] The verification unit is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment using the data in the BIM model; and to modify the steel structure canopy components according to the results of the spatial position verification.

[0020] The beneficial effects of the present application include: (1) The present invention realizes the precise positioning and installation of steel structure canopy components by utilizing the three-dimensional modeling and spatial positioning functions of the BIM model. By combining the positioning point information of the spatial measurement equipment, the error in the component installation is effectively reduced, and the accuracy and efficiency of the overall construction are improved. (2) By extracting the profile parameters of the component based on the BIM model and comparing and verifying the material configuration information during the construction process, the present invention realizes the full-process quality management of the steel structure canopy, especially in the key links such as anti-corrosion treatment and spatial position verification, ensuring the durability and stability of the canopy components. (3) The present invention provides a systematic construction supervision method, which relies on the dynamic data of the BIM model from the processing and installation of the component to the anti-corrosion treatment and position verification, making the construction process clearer and more efficient, and reducing the repeated measurements and manual adjustments 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, the present invention not only facilitates subsequent maintenance personnel to quickly obtain the actual status information of the steel structure canopy, but also supports the full life cycle management of the steel structure canopy, improving the accuracy and timeliness of maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a flow chart of a BIM-based steel structure canopy construction supervision method provided in the first embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of a BIM-based steel structure canopy construction supervision system provided in the second embodiment of the present application. DETAILED DESCRIPTION

[0023] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0024] The first embodiment of the present application provides a method for supervising the construction of a steel structure canopy based on BIM. Figure 1 , which is a schematic diagram of the first embodiment of the present application. Figure 1 A BIM-based steel structure canopy construction supervision method is described in detail in the first embodiment of the present application.

[0025] Step S101: Use 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 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.

[0026] In step S101, the steel structure canopy is three-dimensionally modeled using the building information model (BIM) technology, which specifically includes the following detailed operations to ensure the integrity and availability of the model and meet the needs of construction supervision of the steel structure canopy.

[0027] First, the 3D modeling of the BIM model needs to be completed in a computer-aided design (CAD) or BIM modeling software environment. This step first collects the canopy design drawings, structural drawings and related construction specifications. 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 that the input information required for the BIM model is accurate.

[0028] When establishing a BIM model, it is necessary to create three-dimensional solid models of steel structure components and aluminum alloy panels respectively in accordance with the design specifications of the steel structure canopy. Specifically, the modeling of steel structure components requires accurate construction of geometric shapes based on their profile parameters. Profile parameters include the cross-sectional shape, length, width, thickness, etc. of the steel. These parameters determine the appearance and size 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 steel structure components also need to be designed in detail, including bolt connections, welding locations, and the arrangement of connecting plates. The modeling of aluminum alloy panels also needs to be based on their profile parameters. The thickness, length, bending radius, surface treatment and other parameters of the panels must be reflected in the model.

[0029] After the steel structure and aluminum alloy panel models are built, the spatial positioning parameters in the BIM model need to be added. These parameters include the relative spatial position 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 spatial coordinate system is required to identify the precise position of each component in the model. In order to ensure the accuracy of the positioning parameters, the positioning function in the software can be used to adjust the three-dimensional perspective and align the model to avoid errors in spatial position.

[0030] After completing the modeling and positioning of all components, the BIM model needs to be fully checked and optimized. This includes checking the geometry of the model, checking the material properties, checking the rationality of the connection nodes, and analyzing the accuracy of the spatial positioning parameters. On this basis, a simulated visualization display is performed to verify the integrity and coordination of the model. The display content should include the spatial layout of the components, the material performance, and the simulation of the installation effect.

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

[0032] Furthermore, the three-dimensional modeling of the steel structure canopy using the building information model (BIM) technology to generate a BIM model includes:

[0033] During the 3D modeling process, the component information in the BIM model is managed in a hierarchical and classified manner, including independent identification and storage of different parameters of steel structure components and aluminum alloy panels;

[0034] Based on the characteristics of different component types, the model is visually annotated at multiple levels, including dynamic display of component material, weight and size information;

[0035] After the three-dimensional modeling is completed, the steel structure components and aluminum alloy panels in the model are respectively associated with their material databases to achieve real-time synchronous updating of component materials and BIM models.

[0036] The BIM-based steel structure canopy construction supervision method provided in this embodiment focuses on three-dimensional modeling of 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 the three-dimensional 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 related technical documents of the steel structure canopy, which include the layout, size, material 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, different types of components need to be graded and classified to ensure that the data of various components in the model are clear and the structure is clear. Specifically, steel structure components and aluminum alloy panels should be independently identified and stored. For example, steel structure components can be classified and identified according to their function, shape and connection type, such as columns, beams, support frames, etc.; aluminum alloy panels can be classified according to size, thickness and surface treatment. When identifying, a unique identifier should be assigned to each component to ensure accurate identification and traceability during subsequent modeling and construction.

[0038] On the basis of hierarchical and classified management of the model, multi-level visual annotation is required. According to the characteristics of different component types, key parameters such as the material, weight and size of the component are dynamically displayed in a visual way. Specific operations include identifying components of different materials in the form of color, transparency or labels in the model interface, or displaying different types of component hierarchies in the form of layers. For example, for steel structure components, steel of different materials (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 method can be displayed through layers. In this way, users can intuitively observe and inspect the material, weight and size of the components through the model interface, and can also switch between multiple perspectives and dynamically interact according to 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 database. 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 in the material database (such as corrosion resistance, strength grade, manufacturer information, etc.). This data association can be achieved through the database interface function of the BIM software, so that the material properties of the components can be updated in real time in the BIM model. The content of the synchronous update is not limited to material information, but also includes relevant data such as manufacturing batches and material certificates. This ensures that the latest material information is available at any time during the construction process, and adjustments and optimizations are made according to actual conditions.

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

[0041] Step S102: 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.

[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 the query function of the BIM modeling software to identify and extract detailed parameter information of the main components according to the predefined component properties in the model. Profile parameters include but are not limited to properties such as cross-sectional shape, size, 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 panel can be screened and exported according to the component category, number and specific attribute tags. In order to ensure that the extracted parameters are accurate, the 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 profile parameters are extracted, it is necessary to combine the spatial positioning parameters in the BIM model to further prepare for the processing of the components. The spatial positioning parameters provide the installation position and direction information of each component in three-dimensional space. According to the spatial positioning parameters, the assembly angle, connection method and transportation requirements of the component 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 of the cutting angle, welding point location and bending radius is required.

[0045] According to the extracted profile parameters and spatial positioning parameters, the actual processing of the components can begin. During the processing, CNC machine tools, laser cutting equipment or other suitable manufacturing tools are needed to achieve accurate manufacturing of steel structures and aluminum alloy panels. Profile parameters guide the specific steps of cutting, welding and assembly. For example, the length of the profile determines the size of the cutting, 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 welding rods. In this process, the spatial positioning parameters are used to ensure that the processed components can be correctly installed on site according to the designed position.

[0046] After processing is completed, the steel structure components and aluminum alloy panels need to be inspected for quality. The main inspection items include dimensional accuracy, material consistency and processing surface quality. After passing the inspection, the processed components will be classified and marked 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 profile parameters, the surface treatment requirements of the components are also extracted, and a corresponding list of construction materials is generated so that quality control can be performed simultaneously during subsequent processing and installation;

[0049] The extracted parameters of the main component profiles are checked multiple times, including comparison with the design standards, and automatic alarms are generated for parameters whose deviations exceed preset values.

[0050] This embodiment provides a method for extracting 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 high quality and high precision in component processing and installation. The process of extracting profile parameters requires accurate identification of the geometric features and material properties of each component from the BIM model.

[0051] When extracting profile parameters, you first need to access the component database in the BIM model. The database contains detailed information for 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 extracted simultaneously. Surface treatment requirements usually include surface coating type, corrosion resistance level, weathering requirements, and special treatments (such as sandblasting or galvanizing, etc.). While extracting this information, the corresponding construction material list needs to be generated. The generation of the construction material list is based on the comprehensive data of profile parameters and surface treatment requirements to ensure that the materials required for subsequent processing and installation are accurately matched. 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 completeness and accuracy of material preparation.

[0052] After the profile parameters are extracted, 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, thickness tolerance, length deviation and material property consistency of the profile. If the comparison result shows that the deviation of a certain parameter exceeds the preset allowable value, the system will automatically generate an alarm. The content of the alarm includes a detailed description of the deviation parameter, the value out of range and possible correction suggestions. The automatic alarm mechanism ensures the timely adjustment and optimization of component parameters before processing and installation, avoiding quality problems caused by parameter errors.

[0053] During the multiple verifications, the actual feasibility of materials and processing technology must also be considered. Specifically, the verification process should be combined with the capabilities of the processing equipment and the conditions of 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 its 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 in terms of numerical values, 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 verifications and automatic alarm mechanisms, the quality control level during the processing and installation process 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, the spatial position of the steel structure canopy is accurately positioned to obtain the positioning point information of the installation site of the steel structure canopy.

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

[0057] First, 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 meet the site conditions and be adjusted according to the reference points of the building (such as foundation columns or baselines) so that they can be consistently matched with the absolute coordinate system in the BIM model.

[0058] During the measurement process, construction workers need to confirm the installation position of each component on site one by one 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 three-dimensional space. Through real-time reading and feedback from the measuring equipment, construction workers 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 results and the model data, it is necessary to use the fine-tuning function of the measuring equipment or move the reference point to ensure that the positioning point is accurately aligned with the design position in the BIM model.

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

[0060] In order to further ensure the accuracy of the positioning points, multiple measurements and comparisons can be performed, especially after the initial confirmation of the positioning point information, a second confirmation or independent re-measurement should be performed. This multiple verification method helps to improve the installation accuracy and avoid installation position deviation caused by single measurement errors. The final positioning point information should be updated in real time in the BIM model so that it can be used 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 the spatial measurement equipment, the spatial position of the steel structure canopy is accurately positioned to obtain the positioning point information of the installation site of the steel structure canopy, and further includes:

[0062] In the process of precise spatial positioning, different spatial measurement equipment is used to perform multiple measurements, and the different measurement results are compared and integrated to improve the accuracy of positioning;

[0063] After the positioning point information is obtained, the positioning results are compared with the BIM model in real time, and an installation deviation report is generated, which includes the deviation direction, size and location distribution;

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

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

[0066] In the actual spatial position precision positioning process, a variety of spatial measurement equipment should be used, including total stations, laser scanners and high-precision GPS positioning systems. These devices should be reasonably arranged and used according to the specific conditions of the site and the installation requirements of the components. In order 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 a single measurement. 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, and help reduce deviations caused by single measurements of equipment.

[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 a dedicated software tool by importing the actual measurement results on site into the system and comparing them with the reference coordinates and angles in the BIM model. The comparison results will generate an installation deviation report, which lists in detail the direction, size and location distribution of the deviation. For example, if the actual installation position of a steel beam deviates by 3 cm from the preset position in the model and is biased to the east, the report will clearly indicate this deviation and its specific location. The report can help construction personnel to understand the current installation accuracy in a timely manner and make adjustments and corrections when necessary.

[0068] After positioning is completed, the stability of the positioning point needs to be monitored in real time to ensure the long-term validity of the positioning point information. Stability monitoring not only focuses on the static position of the component, but also considers the environmental factors around it, which may affect the accuracy and durability of the positioning point. Specifically, dynamic analysis should be performed on vibration and humidity. For example, in areas with large vibrations, continuous monitoring using vibration sensors may be required to detect whether there are displacement changes that exceed the allowable range; in environments with high humidity, the impact of humidity on the measuring equipment should be considered, and environmental compensation should be performed when necessary to ensure the accuracy of 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 positioned with high precision 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: using the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy that has been installed on-site.

[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 an installed steel structure canopy.

[0072] First, before on-site installation, the processed steel structure components and aluminum alloy panels need to be inspected on-site. This step is to ensure that the size, shape and quality of the components meet the design requirements in the BIM model, and to check whether the identification of each component corresponds to the positioning point information. During the inspection, 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 time to ensure smooth installation.

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

[0074] After the components are aligned, the construction workers should immediately temporarily fix the components to ensure that their positions remain stable during the installation process. At this time, temporary support structures, bolts, or clips should be used to fix the components in the preset positions in the BIM model. This temporary fixing step is particularly important for large or multi-level steel structure canopies because it prevents the components from shifting or tilting before they are formally connected.

[0075] When the temporary fixation of all components is completed, the final permanent connection should be carried out. This includes the use of bolts, welding or other connection methods to firmly connect the steel structure components and aluminum alloy panels according to the connection requirements in the BIM model. During the connection process, attention should be paid to the installation sequence and stress 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 process defined in the BIM model, for example, the temperature and time of welding should be controlled to avoid deformation of components caused by overheating or uneven cooling.

[0076] After all connections are completed, a preliminary structural stability check should be conducted on the installed steel structure canopy. This includes evaluating the installation effect of the entire structure through visual inspection, measuring tools and mechanical testing to confirm that the connection strength and spatial position of all components meet the design requirements. If any position deviation or unstable connection 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 method of using the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy installed on-site also includes:

[0078] Before on-site installation, the installation area is intelligently scanned, including automated inspection of the construction environment, infrastructure, and installation tools to ensure safety and efficiency during the installation process;

[0079] During the actual installation process, mobile monitoring equipment is used to record videos and collect parameters at key points in the installation process, so as to trace back and analyze the overall construction process after the installation is completed;

[0080] After the installation is completed, the steel structure canopy is subjected to a load test to detect its bearing capacity and stability, and the test results are fed back to the BIM model in real time for dynamic updating.

[0081] In this embodiment, the steel structure canopy is installed on site using the processed steel structure components and positioning point information, and the preparation before installation, monitoring during installation, and inspection steps after installation are further optimized.

[0082] Before on-site installation, the installation area needs to be intelligently pre-scanned. Intelligent pre-scanning refers to the use of special equipment and sensors to automatically inspect and evaluate 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 integrity of the tools and equipment. The inspection of the construction environment includes factors such as the flatness of the ground, the spaciousness of the construction space, and the access path of the lifting equipment. The inspection of the infrastructure involves the reliability of the power supply, water source, and supporting structure. 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 the safety standards for use. 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, mobile monitoring equipment is required to monitor and record the key nodes of the installation in real time. These monitoring devices include high-resolution cameras, mechanical sensors, and laser rangefinders. Construction personnel can install monitoring equipment at component connections, support points, and other important locations to ensure complete recording and parameter collection of the operation process of key nodes during the installation process. Video recording provides visual backtracking materials for the construction process, while parameter collection can record specific data such as the installation angle of the component, the degree of connection tightness, and stress distribution. For example, when welding steel beams, monitoring equipment can be used to record the temperature changes of the welding process and the forming quality of the weld. After the installation is completed, these data and image materials can be used to analyze the construction quality and determine whether corrections are needed.

[0084] After installation, the steel structure canopy needs to be load tested to detect its bearing capacity and stability. The load test is to apply the design load or equivalent load on the structure to observe its force 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 to ensure that it can withstand the expected load in 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, and the test data and model are dynamically associated and updated. 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] The above measures ensured that the installation process of the steel structure canopy was safe and orderly, and the stability and bearing capacity of the structure were verified through load tests after the installation was completed. This process not only optimized construction supervision, but also improved the overall quality of construction and data traceability after the construction was completed.

[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 anti-corrosion treatment of 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 possible environmental corrosion levels. The material configuration information provided in the BIM model is usually presented in the form of digital data, which can directly guide construction personnel to select appropriate anti-corrosion materials and treatment methods.

[0088] After determining the specific anti-corrosion materials, it is necessary to prepare 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 resins, polyurethane coatings, zinc-based coatings or nano-composite coatings. Before the formal start of anti-corrosion construction, the water-facing surface of the steel structure canopy and the surface of small hardware should be cleaned and polished to remove any dirt, rust and impurities that may affect the adhesion of the coating. This can be done by high-pressure water washing, polishing with a grinder or treatment with chemical cleaners. The cleaned surface should be kept dry to ensure good adhesion of the coating.

[0089] During the anti-corrosion construction process, the construction sequence and number of layers specified in the BIM model must be followed. Normally, the coating should be applied in multiple layers, and each layer must be dried naturally or artificially after application to ensure the uniformity and strength of the coating. In the anti-corrosion treatment of the water-facing surface, special attention should be paid to the thickness and uniformity of the coating. The coating thickness should be measured using a coating thickness gauge to ensure that it meets the design standards in the BIM model. For key areas such as corners, interfaces and welding points, additional reinforcement treatment is required, which can be achieved through local thickening or multiple coatings to improve the corrosion resistance of these areas.

[0090] For the anti-corrosion treatment of small hardware, it is necessary to temporarily remove it from the main structure for separate treatment. The selection of anti-corrosion coatings should take into account the material type and size requirements of small hardware, and is usually treated by dipping, spraying or electroplating. After the anti-corrosion coating is applied, the small hardware should be dried and cured to ensure the complete adhesion and stability of the coating. After the anti-corrosion treatment of the small hardware is completed, it should be reinstalled on the steel structure canopy, and tightened and adjusted to ensure its functionality and structural safety.

[0091] After the entire anti-corrosion treatment is completed, a preliminary inspection of the anti-corrosion effect is required, including visual inspection of the integrity of the coating, measurement of the coating thickness, and 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 uneven coating, insufficient thickness or poor adhesion is found, corresponding re-coating or re-treatment is required to ensure that the anti-corrosion effect meets the expected standards.

[0092] Furthermore, the use of 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:

[0093] Before anti-corrosion treatment, a personalized anti-corrosion construction plan is generated based on 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;

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

[0095] After the anti-corrosion treatment is completed, the historical data in the BIM model is used to generate an anti-corrosion effect prediction report, which includes coating life estimation, anti-corrosion layer adhesion assessment and potential corrosion risk analysis.

[0096] In this embodiment, the material configuration information provided in the BIM model is used to perform anti-corrosion treatment on the water-facing surface of the installed steel structure canopy and related small hardware, and the formulation of the anti-corrosion construction plan, monitoring of the construction environment and 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 facing the water, a thick layer of epoxy coating with strong weather resistance can be selected, while for small hardware, a thin layer of anti-rust paint or electroplating process may be used. The personalized construction plan also includes the automatic allocation of construction tools, such as the type of sprayer, nozzle diameter and pressure setting of the paint pump. This personalized plan ensures that the anti-corrosion treatment of each component is highly matched with its material characteristics and exposure environment, improving construction efficiency and anti-corrosion effect.

[0098] During the construction of the anti-corrosion coating, it is necessary to monitor the temperature, humidity, wind speed and other parameters of the construction environment in real time. 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 and cause a decrease in adhesion; when the humidity is too high, the coating may not be fully cured, thus affecting its anti-corrosion performance. The system should automatically adjust the construction method based on the sensor data, for example, appropriately extend the coating interval, adjust the paint ratio, or take temporary shielding measures to ensure the stability of the construction environment. Such dynamic adjustments 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, an anti-corrosion effect estimation report needs to be generated. This report is based on the analysis of historical data in the BIM model and real-time data collected during the construction process, including the life estimation of the coating, the adhesion assessment of the anti-corrosion layer and the potential corrosion risk. The life estimation is calculated based on the characteristics of the coating material, the construction thickness and the environmental conditions, and provides an estimate of the durability of the coating in different corrosion environments. The adhesion assessment is to determine the degree of adhesion between the coating and the surface of the component by analyzing the pull-out test or other non-destructive test results of the coating. The analysis of potential corrosion risks is to evaluate the potential corrosion hazards by combining the component material, coating performance and construction environment conditions recorded in the BIM model. This estimation report provides an important reference for subsequent maintenance and inspection, ensuring that the steel structure canopy can be effectively protected during use.

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

[0101] Step S106 involves using the data in the BIM model to verify the spatial position of the steel structure canopy after the anti-corrosion treatment, and to modify 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 serve as the benchmark data for 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 drone mapping systems. According to the on-site environment and the structural complexity of the canopy, select appropriate measuring equipment for 3D scanning. During the measurement process, it should be ensured that the placement, 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, the spatial point cloud data after actual installation is obtained, which reflects the actual spatial position of the component.

[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 a dedicated software tool to automatically align and match the theoretical coordinates in the BIM model by importing the actual point cloud data into the software. This comparison process can accurately identify the position deviation of each component, including the offset, the change in rotation angle, and the misalignment of the connection point. The comparison results will generate a deviation report, which lists the deviation value and deviation direction of each component in detail.

[0104] According to the results in the deviation report, components whose position deviation exceeds the preset allowable range are corrected. Corrective measures should include specific operations such as realignment, re-fixation or reconnection of components. For example, for steel beams with large horizontal deviations, it may be necessary to adjust the supporting structure or re-reinforce the connection parts for correction; and for vertical deviations, it may be necessary to correct the height of the component by replacing gaskets or re-adjusting bolt connections. 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 performed to confirm that the position deviation of all components has been corrected and is completely aligned with the theoretical position in the BIM model. If deviations that do not meet the requirements are still found in the retest, further refinement and adjustment 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, the spatial position verification of the steel structure canopy after anti-corrosion treatment is performed by using the data in the BIM model, including:

[0107] During the spatial position verification process after the anti-corrosion treatment, multiple verifications were carried out using a variety of measurement methods, including laser rangefinders, total stations, and drone mapping technology;

[0108] During the verification process, the components in the BIM model are dynamically compared, including the real-time position, spatial angle and installation accuracy of the components;

[0109] After the location 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 verify the spatial position of the steel structure canopy after the anti-corrosion treatment to ensure that the installation position of the components is accurate. After the anti-corrosion treatment is completed, the spatial position of the steel structure canopy needs to be verified multiple times, using a variety of measurement methods to ensure accuracy and reliability. In order to fully obtain the spatial data of the steel structure canopy, it is recommended to use a combination of laser rangefinder, total station and drone mapping technology for measurement.

[0111] In specific operations, laser rangefinders can be used to measure the height, width and length of key locations and structures of canopies to ensure that the distance information of each measurement point is accurate. Total stations can be used to further verify the angles and spatial alignment of components, especially for the precise positioning of connection nodes and support points. Drone 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 combined use of multiple measurement methods helps to cover measurement needs at different angles and scales, and improve the comprehensiveness and accuracy of 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 with the theoretical parameters in the BIM model. For example, if the actual position of a steel beam is offset from the design position of 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 difference between the actual and theoretical positions. This dynamic comparison is not limited to a single component, but should also include the relative position 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, numerical statistics of each deviation, and suggestions for possible spatial adjustments. For example, if the deviation of certain components exceeds the preset allowable range, the report will indicate the specific location of these deviation points and possible correction solutions, such as repositioning or adjusting the connection angle. In addition, the deviation report should also include an overall analysis of the deviation distribution, such as whether the deviation is concentrated in a specific area or certain component types, so as 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 the spatial position and provide basic data for further maintenance and optimization.

[0114] Furthermore, the data in the BIM model is used to verify the spatial position of the steel structure canopy components after the anti-corrosion treatment; and the steel structure canopy components are corrected according to the results of the spatial position verification, including:

[0115] First, a laser scanner is used to perform a three-dimensional scan of 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] Extracting theoretical installation point cloud data from BIM model theory ={(X j ,X j ,Z j )||j=1,2,…,m}, where m is the number of nodes defined in the BIM model;

[0117] The multi-level iterative closest point algorithm is used to calculate the actual installation point cloud data P actual And theoretical installation point cloud data P theoryPerform alignment processing to obtain the optimal rotation matrix R1 and the optimal translation vector t1, wherein the multi-level iterative closest point algorithm adopts 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, used to smooth the error;

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

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

[0122]

[0123] Among them, w x 、w y 、w z is the weight coefficient;

[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 for each actual point; β is the adjustment coefficient used to balance deviation and stability; γ ij is the registration weight factor, which is the same 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 value τ, the nonlinear correction process is triggered, wherein the correction amount δ of the nonlinear correction process is calculated using the following formula 4:

[0129] δ=α·tanh(λ·(E―τ)) (4)

[0130] Among them, δ is the nonlinear correction amount, which is used to control the adjustment of the actual installation position; α is the correction coefficient, which is used to control the correction amplitude; λ is the adjustment parameter;

[0131] According to the calculated correction value 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 on-site construction personnel through the digital construction terminal to guide them to correct the installation of the steel structure canopy.

[0133] First, a laser scanner is needed to perform a three-dimensional scan of the steel structure canopy after the anti-corrosion treatment. During the scanning process, the equipment captures the actual spatial position of the canopy with high precision, and obtains the actual installation point cloud P containing a large amount of point data. actual ={(x i ,y i ,z i )|i=1,2,…,n}, where n is the number of scan points. These point cloud data represent the actual installation status of the awning in three-dimensional space, ensuring that all key nodes and surface features can be fully recorded.

[0134] Next, the theoretical installation point cloud data P is extracted from the BIM model. theory ={(X j ,Y j ,Z j )|k=1,2,…,m}, 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. The accuracy of the installation can be evaluated by comparing the actual installation point cloud with the theoretical point cloud.

[0135] In order to achieve the alignment of the actual point cloud and the theoretical point cloud, a multi-level iterative closest point algorithm (ICP) is used. 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] Among them, R is the rotation matrix, which adjusts the rotation angle of the point cloud; t is the translation vector, which adjusts the position of the point cloud; γ ij is the registration weight factor, which is used to control the matching weights of different point pairs; σ is the Gaussian kernel parameter, which is used to smooth the error. After the optimization is completed, the actual point cloud coordinates (x′) after alignment are obtained.i ,y′ i ,z′ i ). n is the number of scan 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, the weighted Euclidean distance matrix D is calculated. ij , and its calculation formula is:

[0139]

[0140] Among them, w x 、w y 、w z is the weight coefficient, which adjusts the error weights in different directions respectively. These distance values ​​are used to measure the alignment degree of components in different directions.

[0141] In order to evaluate the overall deviation, the comprehensive deviation function E is defined:

[0142]

[0143] Among them, w i is the weight factor for each actual point, reflecting its importance in the installation; β is the adjustment coefficient, used to balance deviation and stability. ij is the registration weight factor, which is the same 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 scan points; m is the number of nodes defined in the BIM model.

[0144] During the correction process, the nonlinear correction amount δ is calculated, and its formula is:

[0145] δ=α·tanh(λ·(E―τ)) (4)

[0146] Among them, δ is the nonlinear correction value, which is used to control the adjustment of the installation position; α is the correction coefficient, which controls the correction amplitude; λ is the adjustment parameter, which ensures the smoothness of the correction process by introducing the hyperbolic tangent function.

[0147] The calculated correction value δ is combined with the parametric constraint relationship in the BIM model to 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] In order to implement the generation of a refined component adjustment plan using the calculated correction value δ combined with the parametric constraint relationship in the BIM model, it is necessary to consider the specific value of the correction value and the geometric characteristics, connection relationship and structural constraints of the components in the BIM model. The following is a detailed example to explain this process.

[0149] Assume that in the construction of a steel structure canopy, a key steel beam was verified after actual installation and found to have a deviation from the designed position. The position verification obtained the comprehensive deviation E between the actual point cloud and the theoretical point cloud through measurement and comparison. The correction amount δ is calculated by the nonlinear correction formula:

[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 cm to the right in the X direction, 1.8 cm downward in the Y direction, and 3.2 cm upward in the Z direction. The output of Formula 4 is a scalar correction that describes the combined correction that should be made in all directions. If specific adjustments are required in different directions, this scalar correction needs to be further decomposed into vector form in the X, Y, and Z directions, so that a full range of vector corrections to the actual installation position can be achieved.

[0152] When generating a refined component adjustment plan, it is necessary to combine the parametric constraints in the BIM model. These constraints include the geometric dimensions of the steel beam, the connection method with other components, and the fixation 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 location of the connection nodes. Based on these dimensions, the initial state of the steel beam in three-dimensional space can be determined. The correction value δ indicates the offset in the X, Y and Z directions. Therefore, the node positions of the steel beams in the BIM model need to be parametrically adjusted. For example, if the length of the steel beam is 8 meters, a 2.5 cm 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 take into account the changes in these connection points. For example, the connection nodes between steel beams and columns usually have bolt holes, and the parametric constraint relationship shows the center position 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 association 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 supporting structure between the steel beam and the aluminum alloy panel. According to the parametric relationship in the BIM model, the position of the supporting point 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 is offset by 2.5 cm in the X direction, the connector on the panel also needs to be displaced accordingly.

[0159] 4. Generate a refined adjustment plan

[0160] According to the correction value δ and the parametric constraint relationship, 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] Reposition bolt holes: Make the same 3D position adjustments to the bolt holes at the connection nodes.

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

[0164] Supplementary materials or supports: If the steel beam requires additional supports or shims during the adjustment process, the required materials, sizes and locations will be listed in the BIM model.

[0165] Furthermore, the material configuration information provided in the BIM model is used 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] Based on the extracted information, the corrosion risk index CRI of each component is calculated 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 design 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 high-risk components, nanocomposite anti-corrosion coatings are used with a coating thickness of d h Use the following

[0172] Formula 6 is used for calculation:

[0173]

[0174] Among them, d base is the thickness of the base coating; 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 medium-risk components, use epoxy zinc-rich primer with polyurethane topcoat, with a coating thickness of d m The calculation is performed using the following formula 7:

[0176]

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

[0178] For low-risk components, conventional anti-rust paint (e.g., alkyd anti-rust paint) is used with a coating thickness of d l The following formula 8 is used for calculation:

[0179]

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

[0181] Anti-corrosion treatment is carried out according to the calculated base coating thickness.

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

[0183] Based on the extracted information, the corrosion risk index CRI of each component is calculated as follows:

[0184]

[0185] In the formula, E f Represents environmental factor, 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 indicates the stress level of the component under load; t is the design service life, which reflects the corrosion changes of the component in different service cycles; δ f It is a dynamic risk adjustment factor that takes into account the impact of real-time changes in the environment on the corrosion risk. Through this calculation, the corrosion potential of components in the actual environment can be accurately assessed.

[0186] According to the calculated corrosion risk index CRI, components are divided into three levels of corrosion risk: high, medium and low. Components with high risk levels mean that they are prone to rapid corrosion in exposed environments, while components with medium and low risk levels are relatively stable. In order to adapt to different risk levels, the anti-corrosion treatment schemes will also be different.

[0187] For components with high risk levels, nanocomposite anti-corrosion coatings are used to ensure higher anti-corrosion performance. Coating thickness d h Calculated by the following formula:

[0188]

[0189] Among them, 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 highly corrosive environment.

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

[0191]

[0192] Among them, k4 is the adjustment coefficient, which ensures that medium-risk components have sufficient anti-corrosion capabilities in daily environments by increasing or decreasing the coating thickness.

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

[0194]

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

[0196] According to the basic coating thickness calculated 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 level of different components to ensure the uniformity and adhesion of the coating. This precise anti-corrosion treatment solution can effectively improve the corrosion resistance of steel structure canopies and extend the service life of components.

[0197] In the above-mentioned embodiment, a BIM-based steel structure canopy construction supervision method is provided. Correspondingly, the present application also provides a BIM-based steel structure canopy construction supervision system. Since this embodiment, i.e., the second embodiment, is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The method embodiment described below is merely illustrative.

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

[0199] A modeling unit 201 is used to perform three-dimensional modeling of the steel structure canopy using a building information model (BIM) technology to generate a BIM model, wherein 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;

[0200] The extraction unit 202 is used 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 combining unit 203 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 measuring device, so as to obtain the positioning point information of the installation site of the steel structure canopy;

[0202] The installation unit 204 is used to use the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy that has been installed on-site;

[0203] The processing unit 205 is used to perform anti-corrosion treatment on the water-facing surface and related small hardware of the installed steel structure canopy using the material configuration information provided in the BIM model;

[0204] The verification unit 206 is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment using the data in the BIM model; and to modify the steel structure canopy components according to the results of the spatial position verification.

[0205] A third embodiment of the present application provides an electronic device, the electronic device comprising:

[0206] processor;

[0207] The memory is used to store a program, and when the program is read and executed by the processor, the BIM-based steel structure canopy construction supervision method provided in the first embodiment of the present application is executed.

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

[0209] Although the present application is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

Claims

1. A BIM-based steel structure canopy construction supervision method, characterized in that: include: 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 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 main components; according to the profile parameters and spatial positioning parameters of the main 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 the spatial measurement equipment, the spatial position of the steel structure canopy is accurately positioned to obtain the positioning point information of the installation site of the steel structure canopy; Using the processed steel structure components and the positioning point information, on-site installation is performed to obtain a steel structure canopy that has been installed on-site; Use 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; The data in the BIM model is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment is completed; according to the results of the spatial position verification, the steel structure canopy components are corrected.

2. The BIM-based steel structure canopy construction supervision method according to claim 1 is characterized in that: The method of using the building information model (BIM) technology to perform three-dimensional modeling on the steel structure canopy and generate a BIM model includes: During the 3D modeling process, the component information in the BIM model is managed in a hierarchical and classified manner, including the independent identification and storage of different parameters of steel structure components and aluminum alloy panels; Based on the characteristics of different component types, the model is visually annotated at multiple levels, including dynamic display of component material, weight and size information; After the three-dimensional modeling is completed, the steel structure components and aluminum alloy panels in the model are respectively associated with their material databases to achieve real-time synchronous updating of component materials and BIM models.

3. The BIM-based steel structure canopy construction supervision method according to claim 1 is characterized in that: The extracting the profile parameters of the main components based on the BIM model also includes: When extracting profile parameters, the surface treatment requirements of the components are also extracted, and a corresponding list of construction materials is generated so that quality control can be performed simultaneously during subsequent processing and installation; The extracted parameters of the main component profiles are checked multiple times, including comparison with the design standards, and automatic alarms are generated for parameters whose deviations exceed preset values.

4. The BIM-based steel structure canopy construction supervision method according to claim 1 is characterized in that: Based on the spatial positioning parameters of the steel structure canopy components in the BIM model, combined with the spatial measurement equipment, the spatial position of the steel structure canopy is accurately positioned to obtain the positioning point information of the installation site of the steel structure canopy, and further includes: In the process of precise spatial positioning, different spatial measurement equipment is used to perform multiple measurements, and the different measurement results are compared and integrated to improve the accuracy of positioning; After the positioning point information is obtained, the positioning results are compared with the BIM model in real time, and an installation deviation report is generated, which includes the deviation direction, size and location distribution; After positioning is completed, the stability of the positioning point is monitored in real time, including dynamic analysis of environmental factors around the positioning point to ensure the long-term validity of the positioning point information, wherein the environmental factors include vibration and humidity.

5. The BIM-based steel structure canopy construction supervision method according to claim 1 is characterized in that: The method of using the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy installed on-site also includes: Before on-site installation, the installation area is intelligently scanned, including automated inspection of the construction environment, infrastructure, and installation tools to ensure safety and efficiency during the installation process; During the actual installation process, mobile monitoring equipment is used to record videos and collect parameters at key points in the installation process, so as to trace back and analyze the overall construction process after the installation is completed; After the installation is completed, the steel structure canopy is subjected to a load test to detect its bearing capacity and stability, and the test results are fed back to the BIM model in real time for dynamic updating.

6. The BIM-based steel structure canopy construction supervision method according to claim 1 is characterized in that: The method 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 anti-corrosion treatment, a personalized anti-corrosion construction plan is generated based on 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 anti-corrosion coating construction process, environmental sensors are used to monitor the temperature, humidity and wind speed of the construction environment in real time, and the coating construction method is adjusted according to environmental changes; After the anti-corrosion treatment is completed, the historical data in the BIM model is used to generate an anti-corrosion effect prediction report, which includes coating life estimation, anti-corrosion layer adhesion assessment and potential corrosion risk analysis.

7. The method for supervising the construction of a steel structure canopy based on BIM according to claim 1 is characterized in that: The data in the BIM model is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment, including: During the spatial position verification process after the anti-corrosion treatment, multiple verifications were carried out using a variety of measurement methods, including laser rangefinders, total stations, and drone mapping technology; During the verification process, the components in the BIM model are dynamically compared, including the real-time position, spatial angle and installation accuracy of the components; After the location verification is completed, a spatial deviation report is generated, including the distribution of deviation points, deviation value statistics, and spatial adjustment suggestions.

8. The method for supervising the construction of a steel structure canopy based on BIM according to claim 1, characterized in that: The data in the BIM model is used to verify the spatial position of the steel structure canopy components after the anti-corrosion treatment; According to the results of the spatial position verification, the steel structure canopy components are modified, including: First, a laser scanner is used to perform a three-dimensional scan of 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; Extracting theoretical installation point cloud data from BIM model theory ={(X j ,Y j ,Z j )|j=1,2,…,m}, where m is the number of nodes defined in the BIM model; The multi-level iterative closest point algorithm is used to calculate the actual installation point cloud data P actual And theoretical installation point cloud data P theory Perform alignment processing to obtain the optimal rotation matrix R1 and the optimal translation vector t1, wherein the multi-level iterative closest point algorithm adopts the optimization objective function F(R,T) provided by the following formula 1: 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, used to smooth the error; Based on the optimal rotation matrix R1 and the optimal translation vector t1, the actual point cloud coordinates (x′) after alignment are obtained. i ,y′ i ,z′ i ); According to the following formula 2, the actual point cloud after alignment (x i ,y i ,z i ) and theoretical point cloud (X j ,Y j ,Z j ) is the weighted Euclidean distance matrix D ij : Among them, w x 、w y 、w z is the weight coefficient; According to the following formula 2, the comprehensive deviation is calculated: Among them, E represents the comprehensive deviation, which is used to measure the overall error; w i is the weight factor for each actual point; β is the adjustment coefficient used to balance deviation and stability; γ ij is the registration weight factor, which is the same 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; When the calculated comprehensive deviation E exceeds the preset threshold value τ, the nonlinear correction process is triggered, wherein the correction amount δ of the nonlinear correction process is calculated using the following formula 4: δ=α·tanh(λ·(E―τ)) (4) Among them, δ is the nonlinear correction amount, which is used to control the adjustment of the actual installation position; α is the correction coefficient, which is used to control the correction amplitude; λ is the adjustment parameter; According to the calculated correction value δ, a refined component adjustment plan is generated using the parametric constraint relationship in the BIM model; The refined component adjustment plan is fed back to on-site construction personnel through the digital construction terminal to guide them to correct the installation of the steel structure canopy.

9. The method for supervising the construction of a steel structure canopy based on BIM according to claim 1, characterized in that: The material configuration information provided in the BIM model is used 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; Based on the extracted information, the corrosion risk index CRI of each component is calculated using the following formula 5: Among them, E f is the environmental factor; M f is the material factor; T f is the stress factor; t is the design service life; δ f is the dynamic risk adjustment factor; α, β, γ, β1 are weight coefficients; According to the calculated corrosion risk coefficient CRI, the components are divided into three corrosion risk levels: high, medium and low; For high-risk components, nanocomposite anti-corrosion coatings are used with a coating thickness of d h The calculation is performed using the following formula 6: Among them, d base is the thickness of the base coating; k1, k2, k3 are correction coefficients; For medium-risk components, use epoxy zinc-rich primer with polyurethane topcoat, with a coating thickness of d m The calculation is performed using the following formula 7: Among them, k4 is the adjustment coefficient; d base is the base coating thickness; For low-risk components, conventional anti-rust paint is used with a coating thickness of d l The following formula 8 is used for calculation: Among them, k5 is the proportionality coefficient; d base is the base coating thickness; Anti-corrosion treatment is carried out according to the calculated base coating thickness.

10. A BIM-based steel structure canopy construction supervision system, characterized in that: include: A modeling unit, used to perform three-dimensional modeling of the steel structure canopy by using a building information model (BIM) technology to generate a BIM model, wherein the BIM model includes profile parameters and spatial positioning parameters of steel structure canopy components, and the steel structure canopy components include steel structure components and aluminum alloy panels; An extraction unit is used 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; A combining unit 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 measuring device, so as to obtain the positioning point information of the installation site of the steel structure canopy; An installation unit is used to use the processed steel structure components and the positioning point information to perform on-site installation to obtain a steel structure canopy that has been installed on-site; The processing unit is used to 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; The verification unit is used to verify the spatial position of the steel structure canopy after the anti-corrosion treatment using the data in the BIM model; and to modify the steel structure canopy components according to the results of the spatial position verification.

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