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Research

29 4月 2018

BIM-based model for extracting the elemental graph data model

This paper presents a model that extracts topological relationships and geometrical properties of building elements from an existing fully designed Building Information Model (BIM Model), and maps this information into a directed acyclic Elemental Graph Data Model (EGDM).

The model incorporates BIM-based search algorithms for automatic deduction of geometrical data and topological relationships for each building element type.

With the rapid increase in complexity in the building industry, professionals in the A/E/C industry were forced to adopt Building Information Modelling (BIM) in order to enhance the communication between the different project stakeholders throughout the project life cycle and create a semantic object-oriented building model that can support geometric-topological analysis of building elements during design and construction.

Using graph search algorithms, such as Depth First Search (DFS) and topological sortings, all possible construction sequences can be generated and compared against production and construction rules to generate an optimised construction sequence and its associated schedule. The model is implemented in a C# platform.

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