Grid partitioning method used for building structure geometrical information model

Abstract

The invention discloses a grid partitioning method used for a building structure geometrical information model. The grid partitioning method includes the following steps that according to the arrangement of the building structure model, boundary points are coordinated; according to different components of a building structure, grid partitioning is performed on the corresponding components, and for the frame component, two-point units are directly generated, free grid partitioning is adopted for a floor plate or a basic raft, a shear wall is distinguished into a straight wall and a curved surface wall, whether the straight wall can be split or not is judged, mapping grid partitioning or the free grid partitioning is adopted, for the curved surface wall, the curved surface is firstly mapped to a parameter plane, then the mapping grid partitioning or the free grid partitioning is selected based on whether the curved surface wall can be split or not, and finally grids on the parameter plane are mapped to the original space curved surface to obtain curved surface grids. The grid partitioning performed on the building structure geometrical information model is achieved, and the grid partitioning method can be used for any complex building structure and is very high in generality.

Description

technical field [0001] The invention relates to the field of building information modeling (BIM), in particular to a method for grid division of a building structure geometric information model. Background technique [0002] So far, the development of computer technology has made two revolutionary contributions to the construction industry. The first is that CAD (Computer Aided Design) technology replaces traditional drawings, and the second is BIM (Building Information Modeling), which is usually translated as "building information modeling". Information Model". The former is a change in tools, while the latter is a change in thinking; the former only affects the design stage of the building structure, while the latter will run through the entire life cycle of the building structure (including planning, design, construction, operation and maintenance, etc.). Therefore, for the construction industry, BIM is a more thorough impact and change. [0003] BIM includes a wide ra...

Images