Directed Representative Graph Modeling of MEP Systems Using BIM Data

Mechanical, electrical, and plumbing (MEP) systems are crucial to a building, which directly affect the building safety, energy saving, operational efficiency. Building information models (BIMs) help engineers view connection structure of MEP elements, reducing time for reading drawings training costs. However, existing bring tremendous challenge monitoring due issues with complicated spatial structure, large scale, intuitiveness. In addition, there is still lack feasible methods model representative graph in systems. To address this problem, study proposes an approach directed using BIM data. The proposed contains two parts, edge extraction direction identification. Firstly, elements converted into triangular meshes on boundary points extracted. Secondly, sets developed extract points. Thirdly, connected generate edges. Meanwhile, topological relationships among flow directions ports, all extracted obtain based Industry Foundation Classes (IFC). Subsequently, edges combined graph. Finally, experiments evaluated six models. experimental results show that graphs successfully. Furthermore, simulated system integrate Internet Things (IoT) realize intelligent lays solid foundation development management smart buildings.