Open BIM Research Articles

Proposition and Application of Mapping System for Input Data between Open BIM Data and Building Energy Simulation Software - Focused on Building Material Library and Energy Plus -

With the increasing interest in green building and BIM, many studies on BIM-based energy simulation are being conducted in Korean AEC industry recently. One of the biggest issues in current studies is the trouble with interoperability of data between BIM modeling software and BIM-based energy simulation software. The purpose of this study is to establish a Proposition and Application of Mapping System for Input Data between Open BIM Data and Building Energy Simulation Software. For this, the authors analyzed various BIM-based energy software after the overview of Open BIM and energy simulation. In following phases, a mapping system was Proposed first, and an integrated material library was also generated through the system. Finally, the authors developed a IDF-Convertor which allows management, exchange, and sharing of data between IFC and BIM-based energy simulation software. The result of this study would enable the energy simulation using IFC format, which might be considered difficult before. The use of IFC would allow energy software to utilize much data from other fields as well as material data, and so, help energy simulation advance in the future.

초기 설계단계 건물 에너지 성능평가를 위한 IFC 속성정보 호환성 향상에 관한 연구

Nowadays, AEC industry tries to adopt BIM for low-carbon and eco-friendly building development. With increasing environment policies, many of global construction projects require the adoption of BIM for its many advantages. The advantages can be maximized with Open BIM since it can produce optimal results for various purposes of energy performance assessment. However there are some troubles in representation and property information in the process of Open BIM based energy performance assessment. To examine such troubles, this study focuses on differences between IFC of Open BIM and IDF format of Energy Plus known as the most accurate and diverse energy performance assessment. Two issues the study addresses are form representation and property information. The study figures out the different definition of IFC and IDF, and suggests the way of interoperability. The interoperability test of IFC for building energy performance assessment hope to develop of Open BIM based energy assessment.