Suggestion and Application of an IFC-based Predefined Specification for Improving Interoperability of the Building Code Checking System

Abstract

In the recent paradigm shift of the construction industry where Building Information Modeling (BIM) adoption is growing rapidly one of the most active sectors is building code checking. In many countries using BIM-based e-submission systems for regulation purposes, buildings are checked using open BIM-based Industry Foundation Classes (IFC). However, BIM information can be missing and cause problems when applying standardized IFC data structures in Korea. In addition, problems can exist with data interpretation due to the complexity of Korean regulations, causing quality issues in the building code checking system. The purpose of this study is to suggest a predefined specification for improving interoperability of the building code checking system. To achieve this purpose, the authors have analyzed regulations in Korea to derive Property Set (Pset) objects and properties and have developed a predefined specification based on the derived objects, properties, and IFC data. In addition, the authors have verified the predefined specification using BIM Vision, an IFC viewer program, for checking the interoperability with IFC data values. Creating a predefined specification will minimize the loss of BIM data and increase the interoperability of the building code checking system. This study can contribute to the extension of the building code checking system and to the utilization of the modeling guide.