A municipal road BIM design model and GIS data integration method

Abstract

The invention relates to a municipal road BIM (building information modeling) design model and GIS (geographic information system) data integration method, which comprises the following steps of 1) exporting a road BIM design model with an IFC (Inverse Fast Center) format from a three-dimensional municipal road design platform, and analyzing BIM model elements through an IFC model analyzer; 2) establishing a mapping relation between the GIS model elements and the BIM model elements, realizing conversion from the BIM model elements to the GIS model elements, and finally storing the conversion in an IFC relational database; 3) performing semantic analysis on the road BIM design model according to the BIM model elements and the GIS model elements obtained through analysis, and geometrically converting BIM entity elements obtained through analysis into three-dimensional GIS geometric elements; and 4) according to the mapping relationship in the IFC relational database, extracting the related spatial geometric information and attribute information data by adopting a plurality of detail level LOD hierarchical compression, and displaying the converted three-dimensional municipal road model.

Description

technical field [0001] The invention relates to the technical field of municipal roads, in particular to a method for integrating municipal road BIM design models and GIS data. Background technique [0002] In recent years, Building Information Modeling (BIM) technology aimed at collaborative work and information integration has been widely promoted. However, BIM is mainly used for the design and management of a single project, and it is difficult to take into account the influence of macro-geographical environmental factors around the building, especially the implementation of municipal roads and highway construction projects and the large-scale terrain, geology, landscape and The status quo of the built-up area is closely related. In order to achieve the goal of digital management of the whole life cycle of engineering from planning and design to construction operation, more and more scholars have carried out research on the integrated application of BIM and geographic in...

AI Technical Summary

Problems solved by technology

This kind of research is to expand the support for road objects on the basis of the existing BIM model. In fact, the method of realizing information interaction through simple model conversion in different professional fields only retains a small amount of semantic information, and the application limitations are very obvious.