Steel structure installation method, system and equipment based on laser scanning and BIM fusion

Abstract

The invention relates to the technical field of intelligent installation control systems, in particular to a steel structure installation method, system and equipment based on laser scanning and BIM fusion. According to the steel structure installation method based on laser scanning and BIM fusion, the three-dimensional point cloud data of the component is obtained through laser scanning, the three-dimensional point cloud data and a BIM theoretical model are compared and analyzed, and the actual state of the component is accurately mastered; the construction site is scanned according to the actual deviation value of the component, and spatial data of the installation position are obtained; importing the actually measured data and the field data of the component into a BIM system for virtual pre-assembly, and generating installation guidance parameters; in the installation process, a monitoring system is established based on the guiding parameters, the component position change is tracked in real time, and an adjusting instruction is generated. Precise control over the whole steel structure installation process is achieved, and the construction efficiency and the installation quality are improved.

Description

Technical Field

[0001] This application relates to the technical field of intelligent installation control systems, and in particular to steel structure installation methods, systems and equipment based on laser scanning and BIM integration. Background Technology

[0002] With the continuous improvement of industrialization in the construction industry, steel structures are increasingly used due to their advantages such as high construction efficiency, light structural weight, and good seismic performance. The installation quality of steel structures directly affects the safety and service life of buildings; therefore, ensuring the installation accuracy of steel structure components has become an important research topic in the field of building construction.

[0003] Currently, laser scanning technology enables rapid 3D measurement of steel structure components, while BIM technology allows for digital simulation of the construction process. A system integrating these two technologies can automatically acquire actual component dimensions and compare them with the design model, thereby assisting construction personnel in installation and positioning.

[0004] However, current technologies only cover the detection and positioning of individual components, failing to achieve dynamic monitoring and precise adjustment of the entire installation process. Furthermore, due to a lack of comprehensive consideration of actual construction site conditions, there is often a disconnect between theoretical guidance and practical construction, affecting construction efficiency and installation quality. This situation requires further improvement. Summary of the Invention

[0005] To address the shortcomings of existing integrated application systems, such as their inability to dynamically monitor and precisely adjust the entire installation process, lack of comprehensive consideration of actual construction site conditions, and low construction efficiency and installation quality, this application provides a steel structure installation method, system, and equipment based on laser scanning and BIM integration, employing the following technical solution: In a first aspect, this application provides a steel structure installation method based on laser scanning and BIM fusion, comprising the following steps: Scan the steel structure components to obtain three-dimensional point cloud data of the components; Based on the three-dimensional point cloud data, a comparative analysis is performed with the preset BIM theoretical model to obtain the actual deviation value of the component; Based on the actual deviation value of the component, scan the installation location at the construction site to obtain spatial data of the installation area; Based on the three-dimensional point cloud data and the spatial data of the installation area, virtual pre-assembly is performed in the BIM system to obtain installation guidance parameters. Based on the installation guidance parameters, the component parameters during the installation process are monitored in real time to obtain the installation deviation value, and an adjustment instruction is generated based on the installation deviation value.

[0006] By adopting the above technical solution, this application first uses a laser scanner to perform a comprehensive scan of the steel structure components to obtain high-precision three-dimensional point cloud data, and then compares this data with the BIM theoretical model in real time to accurately grasp the actual state of the components. Next, based on the obtained actual deviation values ​​of the components, the installation location at the construction site is precisely scanned to obtain site spatial data. Then, the measured data of the components and the site spatial data are imported into the BIM system, and the entire installation process is simulated through virtual pre-assembly to generate detailed installation guidance parameters. Finally, during the actual installation process, a monitoring system is established based on these guidance parameters to track changes in the component's position in real time, and corresponding adjustment instructions are immediately generated when deviations are detected. Through digital means, precise control of the entire steel structure installation process is achieved, while simultaneously monitoring the actual conditions of the construction site, thus improving construction efficiency and installation quality.

[0007] Optionally, the actual deviation value of the component is obtained by comparing and analyzing the three-dimensional point cloud data with a preset BIM theoretical model, specifically including the following steps: Based on the three-dimensional point cloud data and the preset BIM theoretical model, calculate the positional deviation of the key connection nodes of the component, the component axis deviation, and the cross-sectional dimension deviation. Calculate the weighted deviation coefficient for each measurement point based on the positional deviation, component axis deviation, and cross-sectional dimension deviation. Based on the weighted deviation coefficient, the matching degree between the component and the design requirements is evaluated, and the local deviation value of the key parts is obtained. The overall deviation assessment value of the component is calculated based on the local deviation value, and the actual deviation value of the component is determined according to the preset installation accuracy level.

[0008] By adopting the above technical solution, this application first registers the acquired 3D point cloud data with the BIM theoretical model, and calculates the positional deviation of key connection nodes of the component, the spatial deviation of the component axis, and the deviation of cross-sectional dimensions, to comprehensively understand the changes in the geometric characteristics of the component. Then, considering that different measurement points have different weights on the installation accuracy of the component, a weighted calculation mechanism is introduced to calculate the weighted deviation coefficient of the measurement points based on various deviation data, so that the evaluation results are more in line with the actual engineering situation. Next, the degree of matching between the component and the design requirements is quantitatively evaluated based on the weighted deviation coefficient, with a focus on analyzing the local deviation of key parts. Finally, the local deviation values ​​are comprehensively calculated to obtain the overall deviation evaluation value of the component, and combined with the installation accuracy level requirements in the engineering specifications, the actual deviation value of the component is accurately determined. This not only achieves a comprehensive evaluation of the component deviation, but also ensures the scientific nature of the evaluation results through reasonable weight allocation.

[0009] Optionally, the method further includes the following steps: Based on the positional deviation of the key connection nodes of the components, the assembly gap value between adjacent components is obtained, and the prestress parameters and allowable deformation values ​​of the connection parts are determined based on the assembly gap value. Based on the prestress parameters and allowable deformation values, a predictive model for the stress-deformation of the component is established; Based on the prediction model, the stress-strain state of the component during the installation process is analyzed to obtain the deformation control value during the installation process; When the actual deformation exceeds the deformation control value, an adjustment compensation parameter is output.

[0010] By adopting the above technical solution, this application first calculates the actual assembly gap value between adjacent components based on the obtained position deviation data of key connection nodes of the components, and determines the prestress parameters required for the connection parts according to the gap value, while setting reasonable allowable deformation values ​​in conjunction with engineering specifications; then, these measured parameters are input into a specially established mechanical model to construct a predictive model that can reflect the actual stress state of the components; next, the predictive model is used to dynamically analyze the stress and strain state of the components throughout the entire installation process to obtain the deformation control values ​​at each stage; finally, the deformation of the components is monitored in real time during the actual installation process, and when the actual deformation exceeds the control value, the system immediately calculates and outputs the corresponding adjustment compensation parameters; by establishing a predictive model based on measured data, accurate prediction and control of component deformation is achieved, which not only avoids excessive deformation of the components during installation, but also provides clear adjustment basis for construction personnel.

[0011] Optionally, based on the installation guidance parameters, the component parameters during the installation process are monitored in real time to obtain the installation deviation value, and an adjustment instruction is generated based on the installation deviation value, specifically including the following steps: Based on the installation guidance parameters, a regional and hierarchical installation accuracy monitoring network is established. The regional division includes dividing the steel structure into rigid connection area, hinged connection area and sliding connection area according to the node connection type. The hierarchical division includes dividing the monitoring points into main load-bearing nodes, secondary load-bearing nodes and general connection points according to the structural importance. The monitoring network collects real-time data on the spatial position, tilt angle, and connection deformation of the components. Areas exceeding the allowable installation deviation are marked as key areas, and the stress transmission path in the deviation areas is analyzed to obtain the stress characteristic parameters of the deviation areas. The allowable deviation values ​​are different for different areas and layers. An adjustment command is generated based on the force characteristic parameters.

[0012] By adopting the above technical solution, this application first divides the entire steel structure into three regions—rigid connection zone, hinged connection zone, and sliding connection zone—based on the structural characteristics of the node connections. Simultaneously, according to the importance of structural stress, monitoring points are divided into three levels: primary stress nodes, secondary stress nodes, and general connection points, establishing a multi-dimensional monitoring network. Then, based on this monitoring network, the spatial coordinates of each monitoring point, the tilt angle of the components, and the deformation data at the node connections are collected in real time. Next, the data analysis system quickly identifies areas exceeding allowable deviations and marks these areas. Simultaneously, mechanical analysis methods are used to trace the stress transmission path in the structure, obtaining characteristic parameters reflecting the actual stress state of the deviation areas. Finally, based on these stress characteristic parameters, the system automatically generates adjustment instructions containing specific details such as adjustment direction and amount. By establishing a hierarchical monitoring system, differentiated monitoring of different types of nodes is achieved, not only improving the targeting and efficiency of monitoring but also establishing a rapid response mechanism from monitoring to adjustment.

[0013] Optionally, an adjustment command is generated based on the force characteristic parameters, specifically including the following steps: Obtain the stress distribution range and corresponding deformation of the current component, and analyze the actual stress state of the current structure based on the stress distribution range and deformation. Calculate the deviation between the stress characteristic parameters and the actual stress state, and determine the component adjustment scheme based on the deviation. Obtain the current installation features of the component, and analyze the effect of each adjustment step on the current installation features layer by layer to obtain the adjustment operation sequence; Based on the adjustment scheme and the adjustment operation sequence, the original installation process of the components is optimized and adjusted to generate adjustment instructions.

[0014] By adopting the above technical solution, this application first obtains the current stress distribution range of the component through a stress analysis system, and establishes a numerical model reflecting the actual stress state of the structure by combining the measured deformation data. Then, the obtained stress characteristic parameters are compared and analyzed with the current actual stress state, and the deviation value between the two is calculated. Based on these deviation data, a preliminary component adjustment plan is formulated in combination with the principles of structural mechanics. Next, considering the actual installation state of the component, the impact effect analysis is performed on each proposed adjustment step to evaluate the stress changes and deformation development that may be caused by the adjustment operation. The optimal adjustment operation sequence is determined through layer-by-layer analysis. Finally, the adjustment plan and adjustment operation sequence are integrated to optimize and adjust the original installation procedures, and a construction adjustment instruction containing specific adjustment methods, adjustment amounts, and operation sequences is generated. This not only ensures the scientificity and feasibility of the adjustment operation, but also effectively avoids secondary deformation during the adjustment process.

[0015] Optionally, the deviation between the stress characteristic parameters and the actual stress state is calculated, and the component adjustment scheme is determined based on the deviation value, specifically including the following steps: Based on the deviation between the stress characteristic parameters and the actual stress state, the degree of impact of the actual stress state on the overall stability of the structure without adjustment is estimated. Obtain the actual degree of deformation of the component under the current stress state; The degree of impact on structural stability is compared with the degree of actual deformation, and the difference between the two is calculated. Based on the difference, determine whether the current adjustment plan is reasonable, and predict the structural performance after the adjustment; Based on the predicted structural performance, the adjustment intensity for each construction step is adjusted.

[0016] By adopting the above technical solution, this application first simulates the current situation based on the deviation between the measured stress characteristic parameters and the actual stress state using a structural calculation and analysis system, estimating the impact of these deviations on the overall structural stability without adjustment, and establishing benchmark evaluation indicators. Then, it acquires the actual deformation data of the components under the current stress state through a field monitoring system to comprehensively understand the deformation development state of the structure. Next, it quantitatively compares the predicted impact on structural stability with the measured deformation degree, calculating the difference between the two, which reflects the structural system's adaptability to deformation. Then, based on the calculated difference and combined with the analysis of structural dynamic characteristics, it judges whether the initially proposed adjustment scheme meets the stability requirements, and predicts the overall performance indicators of the adjusted structure through numerical simulation. Finally, based on the structural performance prediction results, it accurately calculates and dynamically optimizes the adjustment intensity of each adjustment step in the construction scheme to ensure that the adjustment process is always under control. By integrating stability assessment throughout the entire adjustment process, it achieves dynamic optimization of the adjustment scheme, ensuring not only the safety of the adjustment process but also improving the predictability of the adjustment effect.

[0017] Optionally, based on the adjustment scheme and the adjustment operation sequence, the original installation procedures of the components are optimized and adjusted to generate corresponding construction procedure parameters, specifically including the following steps: Obtain the deformation characteristics of each connection node under the current construction environment, and calculate the coordinated deformation time of adjacent nodes based on the deformation characteristics and the corresponding adjustment force; Based on the coordinated deformation time and the corresponding adjustment operation sequence, the force transmission ratio of the adjacent nodes is calculated; Adjust the adjustment range of the adjacent nodes according to the force transmission ratio, and calculate the stability coefficient of the adjacent nodes to achieve mechanical equilibrium based on the adjusted adjustment range. Based on the stability coefficient, the original installation process of the components is optimized and adjusted, and adjustment instructions are generated.

[0018] By adopting the above technical solution, this application first obtains the actual deformation characteristics of each connection node under the construction environment through an on-site monitoring system. Simultaneously, combined with the determined adjustment force, a node response model is established to calculate the coordinated deformation time between adjacent nodes. This time parameter reflects the transmission lag effect of node deformation. Then, the coordinated deformation time is combined with the adjustment operation sequence, and the force transmission ratio between adjacent nodes is determined through mechanical analysis. This ratio reflects the degree of mutual influence between nodes. Next, based on the calculated force transmission ratio, the adjustment range of adjacent nodes is dynamically adjusted, and the stability coefficient when each node reaches mechanical equilibrium is determined through iterative calculation. This coefficient serves as an important indicator for judging whether the node adjustment is in place. Finally, based on the stability coefficient of each node, the original installation procedure is systematically optimized to generate detailed construction instructions containing the adjustment sequence, adjustment range, and key operation points. This achieves coordinated control of the multi-node adjustment process, not only avoiding stress concentration and rebound phenomena during node adjustment but also improving adjustment efficiency and accuracy.

[0019] Secondly, this application provides a steel structure installation system based on laser scanning and BIM fusion, comprising: The 3D point cloud data acquisition module is used to scan steel structure components and obtain 3D point cloud data of the components; The component actual deviation value acquisition module is used to compare and analyze the three-dimensional point cloud data with the preset BIM theoretical model to obtain the component actual deviation value. The regional spatial data acquisition module is used to scan the installation location at the construction site based on the actual deviation value of the component to obtain the installation area spatial data. The installation guidance parameter acquisition module is used to perform virtual pre-assembly in the BIM system based on the three-dimensional point cloud data and the installation area spatial data to obtain installation guidance parameters. The adjustment instruction generation module is used to monitor the component parameters during the installation process in real time according to the installation guidance parameters, obtain the installation deviation value, and generate adjustment instructions based on the installation deviation value.

[0020] Thirdly, this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-described steel structure installation method based on laser scanning and BIM fusion.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This application proposes a steel structure installation method based on laser scanning and BIM fusion. Laser scanning acquires 3D point cloud data of components, which is then compared and analyzed with the BIM theoretical model to accurately determine the actual state of the components. Based on the actual deviation values ​​of the components, the construction site is scanned to obtain spatial data of the installation position. The measured data of the components and the site data are imported into the BIM system for virtual pre-assembly, generating installation guidance parameters. During installation, a monitoring system is established based on the guidance parameters to track changes in component position in real time and generate adjustment instructions. This achieves precise control of the entire steel structure installation process, improving construction efficiency and installation quality. This application registers 3D point cloud data with a BIM theoretical model, calculates deviations in connection node positions, axial spatial deviations, and cross-sectional dimensions, and understands the changes in component geometric characteristics. A weighted calculation mechanism is introduced to calculate weighted deviation coefficients based on the importance of different measurement points. Based on these weighted deviation coefficients, the matching degree between the component and design requirements is evaluated, and local deviations in key areas are analyzed. Finally, the overall deviation assessment value is calculated comprehensively, and the actual deviation value of the component is determined in conjunction with the installation accuracy level requirements. This achieves a comprehensive assessment of component deviations and ensures the scientific validity of the assessment results. This application divides the steel structure into rigid connection zone, hinged connection zone, and sliding connection zone according to the characteristics of node connections, and classifies monitoring points into main stress nodes, secondary stress nodes, and general connection points according to structural importance, establishing a multi-dimensional monitoring network; it collects the spatial position, tilt angle, and deformation data of each monitoring point in real time; it identifies out-of-tolerance areas and analyzes stress transmission paths to obtain stress characteristic parameters; it generates adjustment instructions based on stress characteristic parameters; it achieves differentiated monitoring and establishes a rapid response mechanism. Attached Figure Description

[0022] Figure 1 This is a schematic flowchart of a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application; Figure 2 This is a flowchart illustrating step S200 of a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 1 ; Figure 3 This is a flowchart illustrating step S200 of a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 2 ; Figure 4 This is a flowchart illustrating step S500 in a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 5 This is a flowchart illustrating step S540 in a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 6This is a flowchart illustrating step S542 in a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 7 This is a flowchart illustrating step S544 in a steel structure installation method based on laser scanning and BIM fusion according to an embodiment of this application. Figure 8 This is a schematic diagram of a steel structure installation system based on laser scanning and BIM fusion according to an embodiment of this application; Figure 9 This is an internal structural diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0023] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to any or all possible combinations including one or more of the listed items.

[0024] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0025] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0026] Firstly, this application provides a steel structure installation method based on laser scanning and BIM fusion, referring to... Figure 1 It includes the following steps: S100: Scan the steel structure components to obtain three-dimensional point cloud data of the components.

[0027] In this embodiment, laser scanning refers to a measurement method that uses a laser scanner to emit a laser beam and receive the reflected signal; three-dimensional point cloud data refers to a data set composed of a large number of spatial coordinate points, which have spatial location information and reflection intensity information; BIM theoretical model refers to a three-dimensional digital model with complete geometric information and physical characteristics established in the building information model.

[0028] Specifically, a fixed laser scanner is first used to perform a 360-degree scan of the steel structure components. During scanning, multiple scanning stations are set up around the component; the number of stations is determined based on the size and complexity of the component, and appropriate overlap must be maintained between adjacent stations to ensure data stitching accuracy. For large components, a regional scanning method can be used, dividing the component into several scanning areas. Within each area, the laser scanner emits a laser beam through a high-speed rotating mirror, while simultaneously receiving signals reflected from the component's surface. The system records the 3D coordinates and reflection intensity of each reflection point, forming dense point cloud data. After scanning, a registration algorithm is used to stitch the data from each station into a complete 3D point cloud model of the component.

[0029] S200. Based on the 3D point cloud data, compare and analyze it with the preset BIM theoretical model to obtain the actual deviation value of the component.

[0030] In this embodiment, comparative analysis refers to the process of spatial registration and geometric feature comparison between the measured 3D point cloud data and the BIM theoretical model established in the design phase; the actual deviation values ​​of the components include the positional deviation of the key connection nodes of the components, the spatial deviation of the component axis, and the deviation of the cross-sectional dimensions.

[0031] Specifically, the acquired 3D point cloud data is imported into modeling software, and spatial registration with the BIM theoretical model is performed using a feature point matching method. First, the locations of connecting nodes, axis directions, and cross-sectional contours are extracted as feature points from both the point cloud data and the BIM model. A feature point correspondence table is established, recording the spatial coordinates of each feature point. An iterative nearest-point algorithm is used to calculate the optimal matching transformation matrix between the two sets of feature points, achieving precise alignment between the point cloud data and the BIM model. After registration, the difference between the actual and theoretical positions of each type of feature point is calculated to obtain the actual deviation value of the component.

[0032] S300. Based on the actual deviation value of the component, scan the installation location at the construction site to obtain spatial data of the installation area.

[0033] In this embodiment, the installation area spatial data refers to the three-dimensional geometric information of the installation location at the construction site, including the spatial location of the supporting structure, the connection interface between adjacent components, and the range information of the construction operation space.

[0034] Specifically, based on the obtained actual deviation values ​​of the components, the areas on the construction site that require focused scanning are determined. Reflective targets are deployed in the installation area for subsequent data registration. A portable laser scanner is used to perform multi-site scanning of the construction site to obtain spatial location data of the supporting structure and adjacent components. A site obstacle database is established to record the location information of temporary facilities, equipment pipelines, and other obstacles affecting installation within the construction area. The acquired spatial data is then subjected to coordinate unification and data fusion to generate a complete 3D model of the construction site.

[0035] S400. Based on the 3D point cloud data and the spatial data of the installation area, perform virtual pre-assembly in the BIM system to obtain installation guidance parameters.

[0036] In this embodiment, virtual pre-assembly refers to simulating the installation process of steel structure components in a computer; the installation guidance parameters include the target installation position, attitude angle, reserved gap of connection nodes, and temporary support arrangement requirements of the components.

[0037] Specifically, the 3D point cloud data of the components and the spatial data of the construction site are imported into the BIM system to establish an installation procedure database, recording the installation sequence, hoisting path, and positioning method of each component. The entire installation process is simulated in a virtual environment to check for collisions and interference between components. Through forward and backward deduction, the installation procedure is optimized, and the target position parameters for each stage are determined. A node connection mapping table is established, and the required clearances and temporary supports are determined based on the characteristics of different types of connection nodes.

[0038] S500: Based on the installation guidance parameters, monitor the component parameters in real time during the installation process, obtain the installation deviation value, and generate adjustment instructions based on the installation deviation value.

[0039] In this embodiment, the installation deviation value refers to the degree of deviation between the actual installation position of the component and the target position; the adjustment instruction includes the adjustment direction, adjustment amount, and operation steps.

[0040] Specifically, a field monitoring system is established based on the installation guidelines, using a total station to track component position changes in real time. Displacement sensors are deployed at key connection nodes to monitor node deformation. A deviation early warning index system is established, setting allowable deviation ranges for each parameter. When monitoring data exceeds the warning value, the system automatically analyzes the cause of the deviation and generates construction instructions containing specific adjustment directions and amounts.

[0041] In one embodiment, refer to Figure 2 In step S200, the actual deviation value of the component is obtained by comparing and analyzing the 3D point cloud data with the preset BIM theoretical model. This includes the following steps: S210. Based on the three-dimensional point cloud data and the preset BIM theoretical model, calculate the positional deviation of the key connection nodes of the component, the deviation of the component axis, and the deviation of the cross-sectional dimensions.

[0042] In this embodiment, the key connection node of the component refers to the important node on the steel structure component that connects with other components, including bolt connection holes, welding interfaces and embedded part interfaces; the component axis deviation refers to the spatial position offset of the component's main axis from the design position; the cross-sectional dimension deviation refers to the difference in geometric dimensions between the actual cross-section of the component and the design cross-section.

[0043] Specifically, firstly, a node feature database is established, classifying and labeling the connection nodes on the components according to their type. The actual axis of the component is obtained by fitting the point cloud data using the least squares method, and the axis deviation is calculated using spatial vectors. The actual cross-sectional dimensions at various locations of the component are obtained using a cross-sectional contour extraction algorithm. A geometric feature comparison table is established, and the calculated deviation values ​​are compared with the design values, recording the deviation data.

[0044] S220. Calculate the weighted deviation coefficient for each measurement point based on the positional deviation, component axis deviation, and cross-sectional dimension deviation.

[0045] In this embodiment, the weighted deviation coefficient is a correction coefficient that takes into account the importance of the measurement points and is used to adjust the degree of influence of different measurement points on the overall evaluation of the component; the measurement points include key connection nodes, axis control points, and cross-sectional feature points.

[0046] S230. Based on the weighted deviation coefficient, evaluate the matching degree between the component and the design requirements to obtain the local deviation value of the key parts.

[0047] In this embodiment, the matching degree refers to the degree to which the actual state of the component conforms to the design requirements; the local deviation value refers to the local deformation or positional offset of important parts of the component.

[0048] Specifically, an evaluation index system is established, and the weighted deviation coefficient is compared and analyzed with the design requirements. A fuzzy comprehensive evaluation method is used to calculate the degree of matching between the components and the design requirements. Key stress-bearing parts and deformation-sensitive areas are identified, and the local deviations in these parts are analyzed in detail. A deviation grading standard is established to quantitatively evaluate the local deviation values.

[0049] S240. Calculate the overall deviation evaluation value of the component based on the local deviation value, and determine the actual deviation value of the component based on the preset installation accuracy level.

[0050] In this embodiment, the overall deviation assessment value refers to a comprehensive index reflecting the overall installation quality of the component; the installation accuracy level refers to the construction accuracy standard determined according to the project requirements.

[0051] Specifically, a comprehensive evaluation model is established to weight and combine local deviation values ​​to calculate the overall deviation evaluation value. An accuracy level determination table is created, classifying accuracy levels according to project type, usage requirements, and construction difficulty. The actual deviation value of the component is determined by comparing it against the table. Corresponding adjustment plans are established for different accuracy levels.

[0052] In one embodiment, refer to Figure 3 The method also includes the following steps: S250. Based on the positional deviation of the key connection nodes of the components, obtain the assembly gap value between adjacent components, and determine the prestress parameters and allowable deformation values ​​of the connection parts based on the assembly gap value.

[0053] In this embodiment, the assembly gap value refers to the actual distance between the connection parts of adjacent components; the prestress parameters include the magnitude, direction of action and timing of application of prestress; the allowable deformation value refers to the maximum amount of deformation allowed in the connection parts during installation.

[0054] Specifically, a database of connection node types is established, classifying and organizing the assembly requirements for high-strength bolt connections, welded connections, and hinged connections. Actual assembly gaps are obtained using gap measurement tools, and a gap-prestress correspondence table is created to determine the prestress parameters required for different gap values. Based on the stress characteristics of the nodes, a standard for determining allowable deformation values ​​is established, classifying connection points into important connection nodes, secondary connection nodes, and general connection points according to the degree of stress.

[0055] S260. Based on the prestress parameters and allowable deformation values, establish a predictive model for the stress and deformation of the component.

[0056] In this embodiment, the prediction model refers to the calculation model used to simulate the mechanical behavior of the component during installation; the stress deformation refers to the stress distribution and deformation state of the component under the action of external forces.

[0057] Specifically, a simplified stress model of the component is established, reducing complex nodes to spring-damped elements. A piecewise linearization method is used to describe the material constitutive relationship, and stress-strain curves are established. Boundary conditions are determined based on prestress parameters, and a step-by-step loading method is used to predict the component deformation process.

[0058] S270. Based on the prediction model, analyze the stress and strain state of the component during the installation process to obtain the deformation control value during the installation process.

[0059] In this embodiment, stress-strain state refers to the magnitude of stress and the degree of deformation in various parts of the component; deformation control value refers to the deformation limit that needs to be strictly controlled during installation.

[0060] Specifically, a stress-strain monitoring scheme is established, strain gauges are placed at key locations, and strain data is collected in real time. A deformation control grading table is established, classifying control levels according to component type and stress characteristics. Interpolation algorithms are used to calculate the stress-strain state at non-monitoring points, and an overall stress contour map of the component is drawn. Deformation control values ​​for each stage are calculated based on a prediction model.

[0061] S280. When the actual deformation exceeds the deformation control value, output adjustment compensation parameters.

[0062] In this embodiment, the adjustment compensation parameter refers to the control parameter used to correct the installation deviation, including the adjustment direction, adjustment amount, and adjustment sequence.

[0063] Specifically, establish a deformation exceeding the limit judgment criterion, and activate the compensation mechanism when the monitored actual deformation exceeds the control value. Establish an adjustment parameter mapping table and determine the corresponding adjustment scheme based on the deformation characteristics.

[0064] In one embodiment, refer to Figure 4 In step S500, the component parameters during the installation process are monitored in real time according to the installation guidance parameters to obtain the installation deviation value, and an adjustment instruction is generated based on the installation deviation value. Specifically, the steps include the following: S510. Based on the installation guidance parameters, establish a regional and hierarchical installation accuracy monitoring network.

[0065] The division into regions includes classifying the steel structure into rigid connection zones, hinged connection zones, and sliding connection zones according to the type of node connection. The division into levels includes classifying monitoring points into primary load-bearing nodes, secondary load-bearing nodes, and general connection points according to the importance of the structure.

[0066] In this embodiment, the installation accuracy monitoring network refers to a system layout scheme for monitoring different areas and levels of the steel structure; the rigid connection area refers to the area where the node is completely fixed, the hinged connection area refers to the area where the node can rotate, and the sliding connection area refers to the area where the node can slide; the main load-bearing node refers to the node that bears the main load transmission, the secondary load-bearing node refers to the node that bears the secondary load, and the general connection point refers to the node that mainly plays a connecting role.

[0067] Specifically, a monitoring zoning scheme is established, and zoning maps are drawn based on node connection types. A grading standard for monitoring points is established, classifying and marking monitoring points according to their stress importance. Rules for monitoring point deployment are formulated, and monitoring equipment is deployed in different areas according to the grading requirements. A monitoring data acquisition frequency table is established, setting corresponding data acquisition frequencies for different areas and levels.

[0068] S520: Collect the spatial position, tilt angle and connection deformation data of the components in real time according to the monitoring network.

[0069] In this embodiment, spatial position refers to the coordinate position of the component in three-dimensional space; tilt angle refers to the angle between the component and the horizontal and vertical planes; connection deformation data refers to the displacement and rotation changes at the node connection.

[0070] S530. Areas exceeding the allowable installation deviation are marked, and the stress transmission path of the deviation area is analyzed to obtain the stress characteristic parameters of the deviation area. The allowable deviation values ​​are different for different areas and layers.

[0071] In this embodiment, the stress transmission path refers to the main channel for stress transmission within the component; the stress characteristic parameters refer to key indicators reflecting the stress state of the component, including stress concentration factor, deformation gradient and internal force distribution.

[0072] Specifically, firstly, a regional deviation control table is established, specifying allowable deviation values ​​for rigid connection zones, hinged connection zones, and sliding connection zones. For rigid connection zones, the allowable deviation values ​​for major load-bearing nodes, minor load-bearing nodes, and general connection points are determined according to the span ratio; for hinged connection zones, the allowable deviation values ​​for the three types of nodes are determined according to the component length ratio; for sliding connection zones, the allowable deviation values ​​for the three types of nodes are determined according to the displacement. A node type identification table is established, classifying nodes according to connection form and stress characteristics, and recording the basic parameters of each node. A laser tracker is used to measure the actual position of the nodes, compare it with the design position, and calculate the deviation value. When the deviation exceeds the allowable value, the area is marked in red on the monitoring interface. A local model is established using finite element analysis software, the measured position deviation is input, and the stress distribution is calculated. Stress contour maps are extracted to determine the main path of stress transmission and mark stress concentration areas. The stress concentration factor of key sections is calculated, the deformation gradient and internal force distribution are recorded, and the calculation results are compared with the preset safety threshold to evaluate the rationality of the stress state.

[0073] S540: Generate adjustment instructions based on the force characteristic parameters.

[0074] In this embodiment, the adjustment instruction refers to the specific operational requirements for correcting installation deviations, including the adjustment object, adjustment method, and adjustment steps.

[0075] Specifically, an adjustment scheme library will be established to develop corresponding adjustment schemes for different types of deviations. Adjustment priority determination rules will be established to determine the adjustment order based on force characteristic parameters.

[0076] In one embodiment, refer to Figure 5 In step S540, an adjustment command is generated based on the force characteristic parameters, specifically including the following steps: S541. Obtain the stress distribution range and corresponding deformation of the current component, and analyze the actual stress state of the current structure based on the stress distribution range and deformation.

[0077] In this embodiment, the stress distribution range refers to the range of stress magnitude distribution in various parts of the component; the deformation amount refers to the displacement and rotation of the component under stress; and the actual stress state refers to the stress condition of the component under the current working conditions.

[0078] S542. Calculate the deviation between the stress characteristic parameters and the actual stress state, and determine the component adjustment scheme based on the deviation.

[0079] In this embodiment, the deviation value refers to the degree of difference between the stress characteristic parameters and the actual stress state; the component adjustment scheme refers to the specific measures used to eliminate the deviation, including the adjustment location, adjustment direction and adjustment amount.

[0080] Specifically, a deviation characteristic classification table is first established, classifying deviations into positional deviations, angular deviations, and deformation deviations. For positional deviations, the difference between the measured coordinates and the theoretical coordinates is used for calculation; for angular deviations, the angle between the measured axis and the design axis is used; and for deformation deviations, the difference between the measured deformation value and the theoretical deformation value is used. Weighting coefficients are assigned to the three types of deviations according to their impact on the structure, and a weighted average method is used to obtain the comprehensive deviation value. Based on the comprehensive deviation value, a pre-established adjustment scheme database is consulted to select appropriate adjustment measures. This database records the corresponding adjustment location, direction, and amount for different deviation ranges; for example, positional deviations are mainly adjusted by pushing with jacks, angular deviations are mainly adjusted by temporary supports, and deformation deviations are mainly adjusted by preloading.

[0081] S543. Obtain the current installation features of the component, analyze the effect of each adjustment step on the current installation features layer by layer, and obtain the adjustment operation sequence.

[0082] In this embodiment, installation features refer to the current installation state of the component, including spatial position, connection state, and support conditions; impact effect refers to the degree to which the adjustment operation changes the state of the component.

[0083] Specifically, a component installation status table is established, recording the component's spatial coordinates, support locations, and stress states of connection nodes. For each adjustment step, the influence matrix method is used to analyze its impact on the component's state. For example, pushing adjustments affect the connection stress of adjacent components, support adjustments change the component's stress path, and preloading adjustments cause overall deformation. By calculating influence coefficients, the adjustment steps are sorted according to their degree of influence from smallest to largest, forming an adjustment operation sequence. For adjustment steps with significant impact, a step-by-step implementation approach is adopted, observing the component's response after each adjustment to ensure the safety of the adjustment process.

[0084] S544. Based on the adjustment plan and adjustment operation sequence, optimize and adjust the original installation process of the components, and generate adjustment instructions.

[0085] In this embodiment, the adjustment operation sequence refers to the execution order of specific adjustment steps; the original installation procedure refers to the planned standard installation steps.

[0086] Specifically, the original installation procedures should be modified according to the adjusted operation sequence. When adjusting the procedures, factors such as the layout of construction equipment, operating space requirements, and personnel allocation should be considered to ensure the feasibility of the adjustments. The modified procedures should be compiled into construction instructions, clearly specifying the specific parameters and operational requirements for each adjusted step.

[0087] In one embodiment, refer to Figure 6 In step S542, the deviation between the force characteristic parameters and the actual force state is calculated, and the component adjustment scheme is determined based on the deviation value. This specifically includes the following steps: S5421. Based on the deviation between the stress characteristic parameters and the actual stress state, estimate the degree of impact of the actual stress state on the overall stability of the structure without adjustment.

[0088] In this embodiment, the overall structural stability refers to the ability of the steel structure system to maintain balance under various load combinations; the degree of influence refers to the magnitude of the adverse effects of the stress state deviation on the structure, including local stress concentration, increased overall deformation, and decreased bearing capacity.

[0089] Specifically, a stability assessment index table is established, and key control indicators are set, including nodal displacement, component stress ratio, and overall deformation value. A rapid assessment process is developed, and simplified calculation methods are used to estimate the degree of impact. Quantitative standards for the degree of impact are established for different types of deviations, classifying the degree of impact into minor, moderate, and severe impacts. A warning value judgment table is established, and an adjustment mechanism is activated when the degree of impact exceeds the warning value.

[0090] S5422. Obtain the actual deformation degree of the component under the current stress state.

[0091] S5423. Compare the degree of impact on structural stability with the actual degree of deformation and calculate the difference between the two.

[0092] S5424. Determine whether the current adjustment plan is reasonable based on the difference, and predict the structural performance after the adjustment.

[0093] In this embodiment, the difference refers to the deviation between the degree of influence on structural stability and the actual degree of deformation, including the difference in nodal displacement, the difference in component stress, and the difference in overall deformation; comparative analysis refers to evaluating the relationship between the two through quantitative indicators, including the magnitude of the difference, the trend of change, and the degree of correlation.

[0094] Specifically, a standard table for calculating differences is first established, specifying calculation methods for different types of deviations. For nodal displacement differences, the ratio of measured displacement to theoretical displacement is used, assigning different weights to major load-bearing nodes, minor load-bearing nodes, and general connection points. For component stress differences, the ratio of measured stress to design stress is used, assigning different weights to axial stress, bending stress, and shear stress. For overall deformation differences, the ratio of measured deformation to allowable deformation at key control points is used, assigning different weights to vertical deformation, horizontal deformation, and torsional deformation. A weighted average method is used to obtain a comprehensive difference for the three types of differences, and a grading standard is established. When the comprehensive difference is less than the control value, the adjustment scheme is deemed reasonable. A predictive analysis model is used to evaluate the adjusted structural performance. The model considers the geometric and material nonlinearities of the components, and iterative calculations are used to obtain the stress-strain development law during the adjustment process, verifying the feasibility of the adjustment scheme. Multiple monitoring points are set up to collect structural response data in real time. When the deviation between the monitored value and the predicted value exceeds the allowable value, the adjustment scheme is corrected in a timely manner to ensure the safety and controllability of the adjustment process.

[0095] S5425. Adjust the adjustment intensity of each construction step according to the structural performance prediction results.

[0096] In this embodiment, structural performance refers to the stress performance and service performance of the adjusted structure; adjustment force refers to the strength of the construction adjustment measures.

[0097] In one embodiment, refer to Figure 7 In step S544, based on the adjustment plan and adjustment operation sequence, the original installation procedures of the components are optimized and adjusted to generate corresponding construction procedure parameters, specifically including the following steps: S5441. Obtain the deformation characteristics of each connection node under the current construction environment, and calculate the coordinated deformation time of adjacent nodes based on the deformation characteristics and the corresponding adjustment force.

[0098] In this embodiment, deformation characteristics refer to the deformation patterns and features of the connecting nodes under stress; collaborative deformation time refers to the time required for adjacent nodes to complete the deformation process together.

[0099] Specifically, a node deformation database is established to record deformation parameters for different types of nodes. A deformation characteristic analysis method is developed, and the deformation curves of the nodes are fitted using experimental data. A collaborative deformation calculation model is established, considering the mutual influence between nodes. A time prediction table is created to calculate the deformation synchronization time based on deformation characteristics and adjustment forces.

[0100] S5442. Calculate the force transfer ratio of adjacent nodes based on the coordinated deformation time and the corresponding adjustment operation sequence.

[0101] In this embodiment, the force transmission ratio refers to the distribution relationship of internal forces transmitted between adjacent nodes; the adjustment operation sequence refers to the specific order of construction adjustment steps.

[0102] Specifically, establish force transmission calculation rules, use the influence matrix method to analyze the force transmission relationship between nodes, and determine the adjustment priority order based on the transmission ratio.

[0103] S5443. Adjust the adjustment range of adjacent nodes according to the force transmission ratio, and calculate the stability coefficient of adjacent nodes to achieve mechanical equilibrium based on the adjusted adjustment range.

[0104] In this embodiment, the adjustment range refers to the spatial position and deformation limit of the node adjustment, including the translation adjustment range, the rotation adjustment range and the vertical adjustment range; mechanical equilibrium refers to the force state of the node system when it reaches a stable state, including the internal force balance of the node, the stress balance of the component and the overall deformation coordination.

[0105] Specifically, a node adjustment range table is first established, specifying adjustment limits for different types of nodes. For rigid connection nodes, the translational adjustment range is determined by a multiple of the node plate thickness, the rotational adjustment range by the ratio of bolt hole diameter to connection plate length, and the vertical adjustment range by the adjustable thickness of the pad. For hinged connection nodes, the translational adjustment range is determined by the gap between the pin and the hole, the rotational adjustment range by the curvature of the hinge surface, and the vertical adjustment range by the support height. For sliding connection nodes, the translational adjustment range is determined by the length of the sliding groove, the rotational adjustment range by the inclination angle of the sliding surface, and the vertical adjustment range by the pad combination. The adjustment range is corrected according to the force transmission ratio; nodes with a larger transmission ratio have a correspondingly smaller adjustment range to avoid structural system instability during the adjustment process. The stability of the nodes after adjustment is verified using a step-by-step loading method. The node displacement, internal force, and deformation values ​​are recorded at each loading step. When the difference between two adjacent steps is less than the control value and remains stable, a state of mechanical equilibrium is confirmed. The stability coefficient of the nodal system is determined by comprehensively calculating the displacement increment coefficient, internal force distribution coefficient, and deformation compatibility coefficient at the nodes.

[0106] S5444. Based on the stability coefficient, optimize and adjust the original installation process of the components, and generate adjustment instructions.

[0107] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0108] Secondly, this application provides a steel structure installation system based on laser scanning and BIM fusion. The steel structure installation system based on laser scanning and BIM fusion of this application will be described below in conjunction with the above-mentioned steel structure installation method based on laser scanning and BIM fusion.

[0109] Reference Figure 8 A steel structure installation system based on laser scanning and BIM fusion, comprising: The 3D point cloud data acquisition module is used to scan steel structure components and obtain 3D point cloud data of the components; The component actual deviation value acquisition module is used to compare and analyze the three-dimensional point cloud data with the preset BIM theoretical model to obtain the component actual deviation value. The regional spatial data acquisition module is used to scan the installation location at the construction site based on the actual deviation value of the component to obtain the spatial data of the installation area; The installation guidance parameter acquisition module is used to perform virtual pre-assembly in the BIM system based on 3D point cloud data and installation area spatial data to obtain installation guidance parameters. The adjustment instruction generation module is used to monitor the component parameters during the installation process in real time according to the installation guidance parameters, obtain the installation deviation value, and generate adjustment instructions based on the installation deviation value.

[0110] In one embodiment, this application provides an electronic device, which may be a server, and its internal structure diagram may be as follows: Figure 9 As shown, the electronic device includes a processor, memory, and network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores data. The network interface communicates with external terminals via a network connection. When the computer program is executed by the processor, it implements a steel structure installation method based on laser scanning and BIM integration.

[0111] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0112] In one embodiment, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0113] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0114] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel structure installation method based on laser scanning and BIM fusion, characterized by, The method comprises the following steps: scanning a steel structural member to obtain three-dimensional point cloud data of the member; comparing the three-dimensional point cloud data with a preset BIM theoretical model to obtain an actual deviation value of the member; scanning an installation position on a construction site according to the actual deviation value of the member to obtain spatial data of an installation area; performing virtual pre-assembly in a BIM system according to the three-dimensional point cloud data and the spatial data of the installation area to obtain installation guidance parameters; monitoring member parameters in a real-time manner during installation according to the installation guidance parameters, obtaining an installation deviation value, and generating an adjustment instruction according to the installation deviation value.

2. The laser scanning and BIM fusion-based steel structure installation method according to claim 1, characterized in that, comparing the three-dimensional point cloud data with a preset BIM theoretical model to obtain an actual deviation value of the member, specifically comprising the following steps: calculating a position deviation of a key connecting node of the member, a member axis line deviation, and a cross-sectional size deviation according to the three-dimensional point cloud data and the preset BIM theoretical model; calculating a weighted deviation coefficient of each measuring point according to the position deviation, the member axis line deviation, and the cross-sectional size deviation; evaluating a matching degree of the member with a design requirement according to the weighted deviation coefficient to obtain a local deviation value of a key part; calculating an overall deviation evaluation value of the member according to the local deviation value, and determining the actual deviation value of the member according to a preset installation precision level. 3.The steel structure installation method based on laser scanning and BIM fusion according to claim 2, characterized in that, The method further comprises the following steps: obtaining an assembly gap value between adjacent members according to the position deviation of the key connecting node of the member, and determining a prestress parameter and a deformation allowable value of a connecting part according to the assembly gap value; establishing a prediction model of stress deformation of the member according to the prestress parameter and the deformation allowable value; analyzing a stress and strain state of the member during installation according to the prediction model to obtain a deformation control value of the installation process; outputting an adjustment compensation parameter when an actual deformation exceeds the deformation control value. 4.The steel structure installation method based on fusion of laser scanning and BIM according to claim 1, wherein, monitoring member parameters in a real-time manner during installation according to the installation guidance parameters, obtaining an installation deviation value, and generating an adjustment instruction based on the installation deviation value, specifically comprising the following steps: establishing a regional and hierarchical installation precision monitoring network according to the installation guidance parameters, wherein the regions include rigid connection areas, hinged connection areas, and sliding connection areas according to node connection types of the steel structure, and the hierarchies include main force nodes, secondary force nodes, and general connection points according to structure importance; collecting spatial position, inclination angle, and connection deformation data of the member in a real-time manner according to the monitoring network; highlighting a region exceeding an installation allowable deviation, and analyzing a stress transmission path of the deviation region to obtain a force characteristic parameter of the deviation region, wherein allowable deviation values of different regions and hierarchies are different; generating an adjustment instruction according to the force characteristic parameter.

5. The laser scanning and BIM fusion-based steel structure installation method according to claim 4, characterized in that, generating an adjustment instruction according to the force characteristic parameter, specifically comprising the following steps: obtaining a stress distribution range and a corresponding deformation amount of a current member, and analyzing an actual force state of a current structure according to the stress distribution range and the deformation amount; calculating a deviation value between the force characteristic parameter and the actual force state, and determining a member adjustment scheme according to the deviation value; Obtaining the current installation characteristics of the component, layer-by-layer analyzing the influence of each adjustment step on the current installation characteristics to obtain an adjustment operation sequence; According to the adjustment scheme and the adjustment operation sequence, optimizing and adjusting the original installation process of the component to generate adjustment instructions. 6.The steel structure installation method based on laser scanning and BIM fusion according to claim 5, characterized in that, Calculating the deviation value between the stress characteristic parameter and the actual stress state, and determining the component adjustment scheme according to the deviation value, specifically including the following steps: According to the deviation value between the stress characteristic parameter and the actual stress state, estimating the influence degree of the actual stress state on the overall stability of the structure without adjustment processing; Obtaining the actual deformation degree of the component under the current stress state; Comparing the structure stability influence degree with the actual deformation degree to calculate the difference value between them; According to the difference value, judging whether the current adjustment scheme is reasonable and predicting the structure performance after adjustment; According to the structure performance prediction result, adjusting the adjustment intensity of each construction step. 7.The steel structure installation method based on laser scanning and BIM fusion according to claim 5, characterized in that, According to the adjustment scheme and the adjustment operation sequence, optimizing and adjusting the original installation process of the component to generate corresponding construction process parameters, specifically including the following steps: Obtaining the deformation characteristics of each connection node under the current construction environment, calculating the cooperative deformation time of adjacent nodes according to the deformation characteristics and the corresponding adjustment intensity; According to the cooperative deformation time and the corresponding adjustment operation sequence, calculating the stress transmission ratio of the adjacent nodes; According to the stress transmission ratio, adjusting the corresponding adjustment range of the adjacent nodes, and calculating the stability coefficient of the adjacent nodes reaching mechanical equilibrium according to the adjusted adjustment range; According to the stability coefficient, optimizing and adjusting the original installation process of the component to generate adjustment instructions. 8.A steel structure installation system based on laser scanning and BIM fusion, characterized by, It includes: A three-dimensional point cloud data acquisition module for scanning steel structure components to obtain three-dimensional point cloud data of the components; A component actual deviation value acquisition module for comparing and analyzing the three-dimensional point cloud data with a preset BIM theoretical model to obtain a component actual deviation value; A regional space data acquisition module for scanning the installation position of the construction site according to the component actual deviation value to obtain installation region space data; An installation guidance parameter acquisition module for performing virtual pre-assembly in a BIM system according to the three-dimensional point cloud data and the installation region space data to obtain installation guidance parameters; An adjustment instruction generation module for monitoring the component parameters in the installation process in real time according to the installation guidance parameters, obtaining installation deviation values, and generating adjustment instructions according to the installation deviation values.

9. An electronic device, comprising: It includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to realize the steps of the steel structure installation method based on laser scanning and BIM fusion in any one of claims 1-7.

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