A rule-based system to automatically validate IFC second-level space boundaries for building energy analysis

Huaquan Ying, Sanghoon Lee

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

To facilitate BIM-to-Building Energy Modeling (BEM) geometric transformation, IFC provides a concept of second-level space boundary (SB). In the current practice, however, quality issues of second-level SBs in IFC models are often found, which makes it critical to evaluate their quality before retrieving them for energy analysis. Each second-level SB is objectified by carrying surface geometry and rich semantic data. Manually checking a large number of second-level SBs thus becomes error-prone and impracticable, while automatic and reliable approaches are still not available. This study presents an automated system to validate IFC second-level SBs with 38 rules in terms of syntactic and semantic correctness, geometric correctness, and consistency. The test results with an IFC model of a real-world building show that the system allows users to reliably evaluate the quality of second–level SBs as well as conveniently locate and visualize detected geometric and non-geometric errors.

Original languageEnglish
Article number103724
JournalAutomation in Construction
Volume127
DOIs
StatePublished - Jul 2021

Keywords

  • Automated rule-based checking system
  • Building energy modeling (BEM)
  • Building information modeling (BIM)
  • Industry foundation classes (IFC)
  • Quality check
  • Second-level space boundary

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