CN-117290922-B - Building column based on BIM+ three-dimensional scanning and reserved hole positioning method

Abstract

The application relates to a constructional column and reserved hole positioning method based on BIM+ three-dimensional scanning, which comprises the following specific steps of S1, carrying out three-dimensional scanning on an existing structure to obtain project point cloud data, S2, obtaining a final structure model by a root, S3, obtaining constructional column and reserved hole point location data, S4, setting a lofting robot according to project base points and measuring points, guiding the constructional column and reserved hole point location data into the lofting robot to carry out constructional column and reserved hole point location positioning marks, and finishing building paying-off and construction according to marked positioning points. The application can solve the conflict of professional design based on BIM, and combines three-dimensional scanning and lofting to accurately position the actual positions of the constructional column and the reserved hole, thereby avoiding reworking caused by the conflict between the positions of the constructional column and the reserved hole and the pipeline in actual construction.

Inventors

• YAN RONGFEI
• LIU XU
• SHI XIN
• XIA LEI
• QIAN MINGWEI
• CHEN BO

Assignees

• 中冶武勘工程技术有限公司

Dates

Publication Date

20260505

Application Date

20230914

Claims (1)

1. 1. The method for positioning the constructional column and the reserved hole based on BIM+ three-dimensional scanning is characterized by comprising the following specific steps of: S1, carrying out three-dimensional scanning on an existing structure to obtain project point cloud data; s2, setting up a modeling template according to enterprise standards, setting up a BIM model according to a construction drawing, importing point cloud data obtained by three-dimensional scanning into point cloud processing software, comparing the point cloud data model with the BIM model, identifying differences or conflicts, and modifying to obtain a final BIM model; S3, building a building and comprehensive pipe drawing, performing comprehensive pipe adjustment and prefabricated pipe section segmentation to obtain a final comprehensive pipe model, and adjusting building constructional columns and reserved hole positions according to the final comprehensive pipe model to obtain constructional column and reserved hole point position data; s4, setting a lofting robot according to project base points and measuring points, importing the point position data of the constructional column and the reserved hole into the lofting robot for positioning and marking the point positions of the constructional column and the reserved hole, and finishing building paying-off and construction according to marked positioning points; in the step S1, three initial scanning datum points p1, p2 and p3 and subsequent area scanning datum points p4, p5 and p6 are set on a construction site, a three-dimensional scanner scanning position and scanning precision are set according to the initial scanning datum points and the subsequent area scanning datum points, area scanning is carried out, next area scanning datum points p7, p8 and p9 are set, the three-dimensional scanner is moved to the next area, and the three-dimensional scanner is set according to the p4, p5, p6, p7, p8 and p9 to carry out area scanning; In the step S2, according to the standards of enterprises, establishing a standardized template of a building information model in a mode of keeping consistency and improving efficiency by setting software parameters, element templates and view setting, obtaining north/south, east/west coordinates and project elevation of a project according to a construction drawing, setting a virtual coordinate origin in the project, namely a project base point, and establishing a BIM model by taking a link CAD drawing as a reference; In the step S3, building and pipe heald models are created in the existing structural model according to building drawings and comprehensive pipeline drawings, pipe heald adjustment and prefabricated pipe section segmentation are performed to obtain a final pipe heald model, building constructional columns and reserved hole positions are adjusted according to the final pipe heald model, constructional column and reserved hole midpoint mapping coordinate points are set in the model, and constructional column and reserved hole mapping point position data are obtained; In step S4, the lofting robot locates each constructional column position according to the project base point, the measuring point and the constructional column coordinate point location, locates the longitudinal and transverse point positions in the structural plane according to the reserved hole mapping point location data laser, finishes building paying off and constructing the building wall and constructional column with assistance of the constructional column marking point location, determines the reserved hole midpoint according to the longitudinal and transverse point positions in the structural plane, and performs hole reservation.

Description

Building column based on BIM+ three-dimensional scanning and reserved hole positioning method Technical Field The application relates to a constructional column and a reserved hole positioning method, in particular to a constructional column and a reserved hole positioning method based on BIM+ three-dimensional scanning. Background At present, BIM technology is widely applied in the design stage, three-dimensional scanning plays a certain role in different fields, but positioning of constructional columns and reserved holes is still inaccurate in the construction process, and certain deviation exists according to experience of different constructors, so that the problem of collision of pipelines, the constructional columns and the holes in later construction is caused. Disclosure of Invention The embodiment of the application aims to provide a constructional column and a reserved hole positioning method based on BIM+three-dimensional scanning, which can assist in guiding a building to pay off, accurately position the actual positions of the constructional column and the reserved hole, avoid reworking caused by conflict between the positions of the constructional column and the reserved hole and a pipeline, reduce cost and improve construction efficiency. In order to achieve the above purpose, the present application provides the following technical solutions: The embodiment of the application provides a constructional column and a reserved hole positioning method based on BIM+ three-dimensional scanning, which comprises the following specific steps: S1, carrying out three-dimensional scanning on an existing structure to obtain project point cloud data; S2, setting up a modeling template according to enterprise standards, and setting up a BIM model according to a construction drawing. Importing the point cloud data obtained by three-dimensional scanning into a point cloud processing soft, comparing the point cloud data model with the BIM model, identifying differences or conflicts, and modifying to obtain a final BIM model; S3, building a building and comprehensive pipe drawing, performing comprehensive pipe adjustment and prefabricated pipe section segmentation to obtain a final comprehensive pipe model, and adjusting building constructional columns and reserved hole positions according to the final comprehensive pipe model to obtain constructional column and reserved hole point position data; S4, setting a lofting robot according to project base points and measuring points, guiding the point position data of the constructional column and the reserved holes into the lofting robot to carry out the positioning mark of the point positions of the constructional column and the reserved holes, and completing building paying-off and construction according to the marked positioning points. In the step S1, three initial scanning reference points p1, p2, p3 and subsequent region scanning base points p4, p5, p6 are set on the construction site, the scanning position and the scanning precision of the three-dimensional scanner are set according to the initial scanning reference points and the subsequent region scanning base points, the region scanning is performed, the next region scanning base points p7, p8 and p9 are set, the three-dimensional scanner is moved to the next region, the three-dimensional scanner is set according to the p4, p5, p6, p7, p8 and p9, the region scanning is performed, and the above-mentioned work is repeated to obtain project point cloud data. In step S2, a normalized template of the building information model is created in a manner of keeping consistency and improving efficiency by setting software parameters, element templates, view setting and the like according to the standards of enterprises, north/south, east/west coordinates and project elevation of a project are obtained according to a construction diagram, a virtual origin of coordinates is set in the project to be a project origin, a building BIM model is established by linking CAD drawings as a reference, and differences or conflicts are identified and modified to the final BIM model by comparing point cloud models formed by processed point cloud data. In the step S3, building and pipe heald models are created in the existing structural model according to building drawings and comprehensive pipeline drawings, pipe heald adjustment and prefabricated pipe section segmentation are performed to obtain a final pipe heald model, building constructional columns and reserved hole positions are adjusted according to the final pipe heald model, constructional column and reserved hole midpoint mapping coordinate points are set in the model, and constructional column and reserved hole mapping point position data are obtained. In step S4, the lofting robot locates each constructional column position according to the project base point, the measuring point and the constructional column coordinate point location, locates the longitudinal and trans