Decoration engineering BIM digital construction method

Abstract

The invention discloses a decoration engineering BIM digital construction method, and belongs to the technical field of buildings, and the method comprises the following steps: building a decoration engineering three-dimensional model in BIM software; establishing a point cloud model through scanning data, and performing reverse modeling through the point cloud model to obtain a civil engineering model and an electromechanical pipeline model; the decoration engineering three-dimensional model and the civil engineering model are subjected to image overlapping and mold closing, and a decoration elevation problem report and a decoration base layer size problem report are obtained; the electromechanical pipeline model and the decoration engineering three-dimensional model are subjected to image overlapping and mold closing, and a pipeline collision problem report is obtained; and obtaining an adjustment scheme for the decoration elevation problem report, the decoration base layer size problem report and the pipeline collision problem report in the review, and adjusting the decoration engineering three-dimensional model. According to the decoration engineering BIM digital construction method, the problem that when a decoration engineering three-dimensional model is established in BIM software, difference exists between a design drawing and an actual scene, and consequently construction efficiency and engineering quality are affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, and particularly relates to a BIM digital construction method for decoration engineering. Background Art

[0002] In the current construction industry, through the combination of BIM models and digital construction systems, many components in buildings can be processed remotely, directly transported to the building construction site, and assembled into the building. Through digital construction, the prefabrication of building components can be automatically completed. However, when establishing a three-dimensional model of the decoration project in BIM software, there will be differences between the design drawings and the actual site, resulting in the model being unable to accurately reflect the site conditions, affecting the construction efficiency and project quality. Summary of the Invention

[0003] In order to overcome the defects existing in the prior art, the present invention provides a BIM digital construction method for decoration engineering to solve the above problems.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a BIM digital construction method for decoration engineering, comprising the following steps: S1: Obtain the design drawings and establish a three-dimensional model of the decoration project in BIM software; S2: Use a three-dimensional laser scanning device to scan the civil structure at the decoration project site, establish a point cloud model corresponding to the civil structure through the scanning data, and then perform reverse modeling through the point cloud model corresponding to the civil structure to obtain a civil model; use a three-dimensional laser scanning device to scan the pipelines at the decoration project site, establish a point cloud model corresponding to the pipelines through the scanning data, and then perform reverse modeling through the point cloud model corresponding to the pipelines to obtain an electromechanical pipeline model; S3: Overlay and combine the three-dimensional model of the decoration project with the civil model, analyze the three-dimensional model of the decoration project and the civil model after overlay and combination, and obtain a decoration elevation problem report and a decoration base size problem report; S4: Overlay and combine the electromechanical pipeline model with the three-dimensional model of the decoration project, analyze the electromechanical pipeline model and the three-dimensional model of the decoration project after overlay and combination, and obtain a pipeline collision problem report; S5: Obtain the adjustment plan for the decoration elevation problem report, decoration base size problem report, and pipeline collision problem report in the professional review, and adjust the three-dimensional model of the decoration project in BIM software.

[0005] Preferably, the step S1 includes: S11: Obtain the design drawings and identify the decoration project information in the design drawings; S12: Import the identified decoration project information into BIM software and establish a three-dimensional model of the decoration project; S13: Check the integrity of the established 3D model of the decoration project, obtain the design problems existing in the model, and then generate a design problem report, which includes problem descriptions and optimization suggestions; S14: Send the design problem report to the design unit, and put forward the model optimization requirements; and receive the optimization feedback from the design unit to obtain the optimized design plan; S15: Adjust the 3D model of the decoration project in the BIM software according to the optimized design plan.

[0006] Optionally, in step S3, analyze the superimposed model, identify the collision positions between the 3D model of the decoration project and the civil engineering model to judge the collision situation of the superimposed model, determine the decoration elevation problem and the decoration base layer size problem, and generate a decoration elevation problem report and a decoration base layer size problem report respectively.

[0007] Specifically, in step S4, analyze the superimposed model, identify the collision positions between the mechanical and electrical pipeline model and the 3D model of the decoration project to judge the collision situation of the superimposed model, determine the pipeline collision problem, and generate a pipeline collision problem report.

[0008] It should be noted that in steps S3 and S4, import the 3D model of the decoration project, the civil engineering model and the mechanical and electrical pipeline model into the BIM software; through the built-in collision detection function of the BIM software, generate the coordinate information and collision types of the collision area, and the collision types include the conflict between the decoration surface layer and the civil engineering structure, and the conflict between the decoration surface layer and the mechanical and electrical pipelines.

[0009] Specifically, in step S5, after adjusting the 3D model of the decoration project in the BIM software, re-execute steps S3 and S4; Check whether there are still decoration elevation problems and / or decoration base layer size problems through step S3, and check whether there are still pipeline collision problems through step S4; if there is still one or more of the decoration elevation problems, decoration base layer size problems and pipeline collision problems, continue to execute step S5 until there are no decoration elevation problems, decoration base layer size problems and pipeline collision problems.

[0010] Preferably, in step S5, use the model adjustment function of the BIM software to adjust the decoration elevation and base layer size in the 3D model of the decoration project; Use the model adjustment function of the BIM software to adjust the routing and elevation of the mechanical and electrical pipelines in the 3D model of the decoration project.

[0011] It should be noted that after the step S5, there is also a step S6, and the step S6 includes: exporting a skeleton construction drawing by using the adjusted three-dimensional model of the decoration project, completing the order placement and production of the basic skeleton based on the skeleton construction drawing, and then transporting it to the construction site for skeleton installation.

[0012] Specifically, after the step S6, there is also a step S7, and the step S7 includes: exporting a decoration surface layer material list by using the adjusted three-dimensional model of the decoration project, completing the order placement and production of the decoration components based on the surface layer material list, and then transporting it to the construction site for the construction of the decoration surface materials.

[0013] The beneficial effects of the present invention are as follows: in the BIM digital construction method for the decoration project, a three-dimensional model of the decoration project is established by obtaining the design drawings, and the on-site point cloud data is obtained by using three-dimensional laser scanning, and the mechanical and electrical pipeline model is obtained, and they are superimposed and analyzed to find problems such as decoration elevation, decoration base layer size, and mechanical and electrical collision. Then, a joint review of each specialty is organized, and the model is adjusted in the BIM software to solve the collision problem. The adjusted model is used to generate the skeleton and decoration surface layer material lists, realizing factory prefabrication and on-site assembly construction. This solution effectively integrates BIM technology, three-dimensional scanning, reverse modeling, and assembly construction, realizes precise design, efficient construction, and quality control of the decoration project, significantly improves the construction efficiency and project quality, and provides a new technical path for the intelligence and industrialization of the decoration project. Description of the Drawings

[0014] Figure 1 It is a flowchart of the BIM digital construction method for the decoration project in an embodiment of the present invention. Specific Embodiments

[0015] The following further describes the specific embodiments of the present invention in conjunction with the drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0016] As Figure 1 shown, a BIM digital construction method for the decoration project includes the following steps: S1: Obtain the design drawings, establish a three-dimensional model of the decoration project in the BIM software; obtain the design problems existing in the modeling process, obtain the optimization feedback from the design unit according to the design problems, and adjust the three-dimensional model of the decoration project according to the optimization feedback.

[0017] S2: Use a three-dimensional laser scanning device to scan the civil engineering structure at the decoration project site. Establish a point cloud model corresponding to the civil engineering structure through the scanned data, and then perform reverse modeling through the point cloud model corresponding to the civil engineering structure to obtain a civil engineering model; Use a three-dimensional laser scanning device to scan the pipelines at the decoration project site. Establish a point cloud model corresponding to the pipelines through the scanned data, and then perform reverse modeling through the point cloud model corresponding to the pipelines to obtain an electromechanical pipeline model; In this embodiment, use a Trimble, Leica or Faro scanning device to perform three-dimensional scanning on the construction site. Specifically, at the decoration project site, when using a three-dimensional laser scanning device for data acquisition, the device can obtain spatial information at a speed of 500,000 points per second, and the scanning accuracy reaches 1 mm; During the scanning process, the device emits laser beams and receives reflected signals, records the spatial coordinates and reflection intensity of each point, and forms the original point cloud data; The point cloud data is denoised and filtered through a preprocessing algorithm to remove abnormal points and redundant data. For example, use a radius filtering algorithm, set the filtering radius to 2 mm, and remove isolated points; The processed point cloud data is aligned through a registration algorithm. Use the Iterative Closest Point (ICP) algorithm. For example, set the number of iterations to 50 times and the error threshold to 5 mm to splice the point cloud data scanned at multiple stations into a complete point cloud model; Next, use reverse modeling software to extract geometric features through a point cloud segmentation algorithm. For example, use a region growing algorithm, set the curvature threshold to 01, and segment the point cloud into basic geometric bodies such as planes and cylinders; Based on the segmentation results, use a surface reconstruction algorithm, such as Poisson surface reconstruction, set the depth to 8, and generate a high-precision three-dimensional model; After the model is completed, use a mesh optimization algorithm, such as Laplacian smoothing, set the number of iterations to 10 times, and improve the smoothness and accuracy of the model; Finally, the generated civil engineering model and electromechanical pipeline model can be used for construction simulation.

[0018] S3: Overlay and combine the three-dimensional model of the decoration project with the civil engineering model, and analyze the three-dimensional model of the decoration project and the civil engineering model after overlay and combination to obtain a decoration elevation problem report and a decoration base size problem report.

[0019] S4: Overlay and combine the electromechanical pipeline model with the three-dimensional model of the decoration project, and analyze the electromechanical pipeline model and the three-dimensional model of the decoration project after overlay and combination to obtain a pipeline collision problem report.

[0020] S5: Obtain the adjustment plans for the reports on decorative elevation problems, decorative base layer dimension problems, and pipeline collision problems in the professional joint review, and adjust the 3D model of the decorative project in the BIM software. For example, in the report on decorative elevation problems, first extract the elevation data between the decorative surface layer and the civil structure through the BIM software. It is found that the elevation of a certain area is 3 meters, which is lower than the design requirement of 5 meters. Through analysis, it is determined that there is a problem with the too low beam bottom elevation in this area. Subsequently, in the report on pipeline collision problems, it is detected that the ventilation duct and the decorative ceiling intersect in multiple areas, and the minimum spacing is only 1 meter, which cannot meet the construction requirements. For these problems, a joint review will be organized for each specialty (such as the design institute), and Navisworks will be used to assist in comprehensively scanning the 3D model of the decorative project, the civil model, and the mechanical and electrical pipeline model to generate a list of collision points. According to the coordinate information of the collision points, adjust the height of the decorative surface layer, raise the original net height of 3 meters to 6 meters to ensure that it meets the design requirements. At the same time, for the collision problem between the ventilation duct and the decorative ceiling, move the ventilation duct up by 2 meters as a whole to make the spacing reach 3 meters, meeting the construction specifications. In the early stage of the project, a 3D laser scanner is used to quickly obtain accurate 1:1 data on-site, providing guarantee for the accuracy of the mechanical and electrical and fine decoration detailed drawings in the design stage. In the later construction implementation stage, a BIM robot is used for lofting to form a lofting digital file, so as to formulate a lofting plan, ensure that the detailed drawings are accurately implemented on-site with zero error, make up for the low efficiency of traditional lofting and the errors and inaccuracies caused by manual lofting, enable a single data source to be accurately and effectively implemented on-site, and lay a foundation for the design effect, customized processing of finished products, mechanical and electrical installation positioning, and construction quality.

[0021] In the BIM digital construction method for the decorative project, a 3D model of the decorative project is established by obtaining the design drawings, on-site point cloud data is obtained by using 3D laser scanning, and a mechanical and electrical pipeline model is obtained. They are superimposed and analyzed to find problems such as decorative elevation, decorative base layer dimension, and mechanical and electrical collision. Then, a joint review is organized for each specialty, and the model is adjusted in the BIM software to solve the collision problems. The adjusted model is used to generate a list of skeleton and decorative surface layer materials, realizing factory prefabrication and on-site assembly construction. This solution effectively integrates BIM technology, 3D scanning, reverse modeling, and assembly construction, realizes precise design, efficient construction, and quality control of the decorative project, significantly improves the construction efficiency and project quality, and provides a new technical path for the intelligentization and industrialization of the decorative project.

[0022] Preferably, the step S1 includes: S11: Obtain the design drawings and identify the decorative project information in the design drawings; S12: Import the identified decorative project information into the BIM software and establish a 3D model of the decorative project; S13: Check the integrity of the established 3D model of the decoration project, obtain the design problems existing in the model, and then generate a design problem report, which includes problem descriptions and optimization suggestions; S14: Send the design problem report to the design unit, and put forward the model optimization requirements; and receive the optimization feedback from the design unit to obtain the optimized design scheme; S15: Adjust the 3D model of the decoration project in the BIM software according to the optimized design scheme.

[0023] In the stage of obtaining the design drawings, obtain high-resolution digital images with a resolution of 300 dpi to ensure that details are clearly visible. Use OCR technology to extract the text information in the drawings, and identify and mark the key dimensions, such as the length and height of the wall surface, etc. through image processing algorithms. Next, when establishing the 3D model of the decoration project in the BIM software, according to the extracted dimension data, adopt the parametric modeling method, and automatically generate 3D components by inputting specific values (such as the wall thickness is 200 mm and the ceiling height is 2600 mm). Finally, share the model with the design unit through the BIM collaboration platform to ensure that the design unit can view the modification content in real time and discuss through the online communication tool to ensure the accuracy and feasibility of the model optimization scheme. In this embodiment, the BIM software is preferably REVIT, ARCHICAD or Rhino.

[0024] It should be noted that in the step S3, analyze the superimposed model, identify the collision positions between the 3D model of the decoration project and the civil engineering model to judge the collision situation of the superimposed model, determine the decoration elevation problem and the decoration base layer dimension problem, and generate the decoration elevation problem report and the decoration base layer dimension problem report respectively. In this process, use the collision detection function of the BIM software to conduct a spatial conflict analysis on the model, detect problems such as pipes crossing walls and lamps colliding with structural beams, generate a collision report, record the collision positions and specific dimensions, conduct a quantitative analysis on the collision points, such as calculating that the pipe offset distance is 150 mm, and put forward optimization suggestions, such as raising the pipe elevation to 3000 mm to avoid conflicts.

[0025] Specifically, during the process of importing the 3D model of the decoration project into the point cloud model to overlay and combine the 3D model of the decoration project with the civil engineering model, first, accurate data of the civil engineering structure is obtained through point cloud scanning to generate a point cloud model. The point cloud density can be set to 1000 points per square meter to ensure model accuracy. The ICP (Iterative Closest Point) algorithm is used to register the 3D model of the decoration project with the civil engineering model. Through iterative optimization, the two models are aligned in space, and the registration error is controlled within 2 millimeters. Next, Boolean operations are used to perform collision detection on the overlaid model. By traversing the geometric bodies in the model, the intersection area of the two models is calculated, and the AABB (Axis-Aligned Bounding Box) is used to accelerate the collision detection process. The detection accuracy is 1 millimeter. After the collision position is detected, the system automatically marks the collision points and generates a collision report, which includes the spatial coordinates of the collision position, the collision depth, and the component information involved. Regarding the decoration elevation problem, the system calculates the decoration elevation of each room by analyzing the vertical distance between the 3D model of the decoration project and the civil engineering model, and compares it with the design requirements. If the decoration elevation is lower than the design requirements, a decoration elevation problem is automatically generated. The report details the decoration elevation values and deviation values of each room, providing data support for subsequent design adjustments.

[0026] Preferably, in step S4, the overlaid model is analyzed to identify the collision positions between the mechanical and electrical pipeline model and the 3D model of the decoration project to determine the collision situation of the overlaid model, determine the pipeline collision problem, and generate a pipeline collision problem report.

[0027] Specifically, when overlaying and combining the mechanical and electrical pipeline model with the 3D model of the decoration project, first, the mechanical and electrical pipeline model is converted into a common format such as IFC or DWG through 3D modeling software to accurately match the decorative surface layer model. The collision detection function in BIM software is used to set collision detection parameters such as a minimum distance of 50 millimeters. Through spatial algorithms such as the GJK algorithm or the Octree algorithm, real-time collision analysis is performed on the mechanical and electrical pipelines in the mechanical and electrical pipeline model and the decorative surface layer in the 3D model of the decoration project. During the analysis process, the software automatically generates the collision point coordinates and records the collision types such as the vertical collision between the pipeline and the ceiling. According to the detection results, a pipeline collision problem report is generated, which details the specific positions and collision types of each collision point.

[0028] Optionally, in steps S3 and S4, import the three-dimensional model of the decoration project, the civil engineering model, and the mechanical and electrical pipeline model into the BIM software; when importing the models, ensure that the model format is IFC or RVT format, and check the integrity and accuracy of the models; through the collision detection function built in the BIM software, generate the coordinate information and collision types of the collision areas, and the collision types include the conflicts between the decorative surface layer and the civil engineering structure, and the conflicts between the decorative surface layer and the mechanical and electrical pipelines.

[0029] Specifically, in step S5, after adjusting the three-dimensional model of the decoration project in the BIM software, re-execute steps S3 and S4; Detect whether there are still decoration elevation problems and / or decoration base size problems through step S3, and detect whether there are still pipeline collision problems through step S4; if there is still one or more of the decoration elevation problems, decoration base size problems, and pipeline collision problems, continue to execute step S5 until there are no decoration elevation problems, decoration base size problems, and pipeline collision problems.

[0030] It should be noted that in step S5, use the model adjustment function of the BIM software to adjust the decoration elevation and base size in the three-dimensional model of the decoration project; for the decoration elevation, the adjustment basis is the preset elevation requirement and the collision detection result; for the base size, the adjustment basis is the preset base size requirement and the collision detection result; Use the model adjustment function of the BIM software to adjust the orientation and elevation of the mechanical and electrical pipelines in the three-dimensional model of the decoration project; in this embodiment, give priority to adjusting the positions of the non-main pipelines to ensure the optimization of the spatial relationship between the three-dimensional model of the decoration project and the mechanical and electrical pipelines.

[0031] Specifically, after step S5, there is also step S6, and step S6 includes: using the adjusted three-dimensional model of the decoration project, export the skeleton construction drawing by extracting the geometric information of its skeleton structure, complete the order placement and production of the base skeleton based on the skeleton construction drawing, and then transport it to the construction site for skeleton installation.

[0032] Optionally, after step S6, there is also step S7, and step S7 includes: export the decorative surface layer material list through the adjusted three-dimensional model of the decoration project, complete the order placement and production of the decorative components based on the surface layer material list, and then transport it to the construction site for the construction of the decorative surface materials.

[0033] Carry out the decoration refinement work according to the design plan. The decoration refinement work includes structural refinement, process refinement and layout refinement. Structural refinement: Optimize the decoration base practice. On the premise of safety and ensuring that the original design function remains unchanged, the base practice can be adjusted according to the actual on-site dimensions. Process refinement: Optimize the jointing of decorative materials and the installation method of decorative materials according to the characteristics of decorative materials, and it is necessary to ensure that the original design effect remains unchanged. Layout refinement: First, extract the geometric data of components such as walls, floors, structural columns, pipe shafts and concealed pipes; then, use the geometric data of components such as walls and floors in combination with the specifications of materials to optimize the layout, so that the decorative surface layer material list can be generated using the optimized layout data. The decorative surface layer material list includes the dimensions, angles and splicing order of each decorative component.

[0034] Finally, after the construction is completed, scan and archive the construction site after completion through a three-dimensional laser scanning device to form a digital decoration achievement file.

[0035] The above has described the embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A BIM digital construction method for decoration engineering, characterized in that: The following steps are involved: S1: Obtain design drawings and build a 3D model of the decoration project in BIM software; S2: Use 3D laser scanning equipment to scan the civil structure at the decoration project site, establish a point cloud model corresponding to the civil structure through the scanning data, and then perform reverse modeling through the point cloud model corresponding to the civil structure to obtain the civil model; Use 3D laser scanning equipment to scan the pipelines at the decoration project site, establish a point cloud model corresponding to the pipelines through the scanning data, and then perform reverse modeling through the point cloud model corresponding to the pipelines to obtain the electromechanical pipeline model; S3: Overlaying and matching the decoration engineering 3D model with the civil engineering model, analyzing the decoration engineering 3D model and the civil engineering model after the overlay and matching, and obtaining a decoration elevation problem report and a decoration base dimension problem report; S4: Overlay and mold the electromechanical pipeline model with the three-dimensional model of the decoration project, analyze the electromechanical pipeline model and the three-dimensional model of the decoration project after overlay and mold, and obtain a pipeline collision problem report; S5: Obtain adjustment plans for the decoration elevation problem report, decoration base dimension problem report and pipeline collision problem report in the professional review, and adjust the 3D model of the decoration project in the BIM software.

2. A decoration engineering BIM digital construction method according to claim 1, characterized in that: The step S1 comprises: S11: Obtain design drawings and identify decoration engineering information in the design drawings; S12: Import the identified decoration project information into BIM software and establish a three-dimensional model of the decoration project; S13: Perform integrity check on the established three-dimensional model of the decoration project, obtain design problems existing in the model, and then generate a design problem report, which includes a problem description and optimization suggestions; S14: Send the design problem report to the design unit and propose the model optimization requirements; and receive the optimization feedback from the design unit to obtain the optimized design solution; S15: Adjust the 3D model of the decoration project according to the optimized design plan in the BIM software.

3. A BIM digital construction method for decoration engineering according to claim 2, characterized in that: In step S3, the superimposed model is analyzed, the collision position between the decoration project three-dimensional model and the civil engineering model is identified to judge the collision situation of the superimposed model, the decoration elevation problem and the decoration base size problem are determined, and the decoration elevation problem report and the decoration base size problem report are generated respectively.

4. A decoration engineering BIM digital construction method according to claim 3, characterized in that: In step S4, the superimposed model is analyzed, and the collision position between the electromechanical pipeline model and the decoration engineering three-dimensional model is identified to determine the collision situation of the superimposed model, determine the pipeline collision problem, and generate a pipeline collision problem report.

5. A BIM digital construction method for decoration engineering according to claim 4, characterized in that: In step S3 and step S4, the three-dimensional model of the decoration project, the civil engineering model and the electromechanical pipeline model are imported into the BIM software; the coordinate information and collision type of the collision area are generated through the built-in collision detection function of the BIM software, and the collision type includes the conflict between the decorative surface layer and the civil engineering structure, and the conflict between the decorative surface layer and the electromechanical pipeline.

6. A BIM digital construction method for decoration engineering according to claim 5, characterized in that: In step S5, after adjusting the three-dimensional model of the decoration project in the BIM software, step S3 and step S4 are re-executed; Step S3 is used to detect whether there are still problems with the decoration elevation and / or the size of the decoration base layer, and step S4 is used to detect whether there are still problems with the pipeline collision. If one or more of the problems with the decoration elevation, the size of the decoration base layer and the pipeline collision still exist, step S5 is continued until the problems with the decoration elevation, the size of the decoration base layer and the pipeline collision no longer exist.

7. A decoration engineering BIM digital construction method according to claim 6, characterized in that: In step S5, the decoration elevation and base size in the three-dimensional model of the decoration project are adjusted using the model adjustment function of the BIM software; Use the model adjustment function of BIM software to adjust the direction and elevation of mechanical and electrical pipelines in the three-dimensional model of the decoration project.

8. A BIM digital construction method for decoration engineering according to claim 7, characterized in that: Step S6 is also included after step S5, and step S6 includes: using the adjusted three-dimensional model of the decoration project to derive a skeleton construction drawing, completing the ordering and production of the base skeleton based on the skeleton construction drawing, and then transporting it to the construction site for skeleton installation.

9. A decoration engineering BIM digital construction method according to claim 8, characterized in that: Step S7 is also included after step S6, and step S7 includes: deriving a list of decorative surface materials through the adjusted three-dimensional model of the decoration project, completing the ordering and production of decorative components based on the list of surface materials, and then transporting them to the construction site for decorative surface material construction.

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