Building modeling method based on BIM (Building Information Modeling)

Abstract

The invention relates to the technical field of building modeling, and discloses a BIM (Building Information Modeling)-based building modeling method, which comprises the following steps of inputting original building data, establishing a network model, acquiring point cloud data of a building, processing the point cloud data of the building, fusing information and modeling. The system further comprises a data entry device, a modeling device, a data acquisition device, a data processing device, a comprehensive processing device and the like, a network model is established through electronic edition entry of a building construction drawing or a building design drawing, building images are acquired in combination with a satellite remote sensing technology and are processed by PCI Geomatica processing software, point cloud data are acquired, and the point cloud data are stored in a database. According to the method, point cloud data are combined and spliced and coordinate system conversion is carried out by combining PCL software, Revit and other software are applied to fuse a network model and the point cloud data and carry out modeling, point cloud data acquisition and modeling are carried out by taking floors as units, and modular modeling is carried out, so that the modeling process is more convenient and simpler.

Description

technical field [0001] The invention relates to the technical field of building modeling, in particular to a building modeling method based on BIM modular modeling. Background technique [0002] Building information modeling is the BIM (Building Information Modeling) architectural design method. Since various disciplines are closely integrated on the platform of the central file, especially the mechanical and electrical major, they have to be bundled in the same file, and the modifications made to the model are directly reflected on the model. It leads to compact information flow, and due to the intuitiveness of the model, it reduces the time of explanation, strengthens the effect of communication, reduces the link of communication, ensures the stability and accuracy of information, and improves the design quality at the same time. The three-dimensional simulation of BIM The working mode truly reflects the situation of building construction, records relevant and detailed dat...

AI Technical Summary

Problems solved by technology

[0003] The BIM design process is an information collaborative behavior based on the same platform for real-time interaction. A large amount of information will be generated throughout the process. The process of comprehensively processing this information is the core of the BIM design work. Currently, BIM is usually based on two-dimensional design drawings. However, the electronic version of the two-dimensional design drawing of the existing building is often missing, and the drawing information is different from the completed status of the existing building. The established BIM model is not the same as the actual situation of the existing building, and due to The difference in information generated during the construction process leads to differences between the actual information size of the building and the size on the design drawing, so there will be more problems to be solved in the information exchange management link

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