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An exploration of COBie based point cloud processing for facility management in Qatar

Sietzema, Arjen Jelte (2015) An exploration of COBie based point cloud processing for facility management in Qatar.

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Abstract:Laser Scanning for Facility Management is becoming more popular, and current efforts to integrate laser scanning, Building Information Modeling (BIM) and Construction Operations Building information exchange (COBie) tend to focus on creating a BIM first. Since this can be a very cumbersome and repetitive task, this research explores the possibility to completely omit BIM reconstruction and proposes a systematic approach to obtain COBie data directly from laser scans. The method used in this research is an explorative design for a representative case study, which relies on a qualitative foundation provided by literature. Previous studies indicate that data from laser scans (point clouds) do not have semantic structure and corresponding data-driven approaches are limited to knowledge representations about shapes if no prior model libraries or ontologies are available. An in-depth case study of a Cooling Plant in Qatar was conducted to understand COBie’s data structure and characteristics, and to test the proposed point cloud processing approach on field data. Analysis shows that COBie mainly relies on identities of objects and spaces and the relationship between them, and is lacking definitions for geometry. Contrary to the expectations from literature and analysis of COBie in the case study, the findings after using our approach show that it is possible to obtain COBie directly from point clouds even due its difference in knowledge representations. By using a corresponding as-built BIM as reference, these findings were validated and discussed. Since the research scope was narrowed down to shape knowledge representations, several suggestions for further research are presented in order to fully explore the potential that point clouds can offer. Summarizing, the main contributions of this research are: (1) it discovers and substantiates the state-of-art advances in point cloud processing, (2) uses the COBie standard as foundation for proposing a straightforward processing method and (3) it extends existing bodies of knowledge in the field and provides useful stepping stones for further research.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Construction Management and Engineering MSc (60337)
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