Reality capture and site-scanning techniques for material reuse planning

The reuse of building materials requires both broad-ranging and detailed information on available building stocks in order to effectively plan for connecting available materials with their eventual reuse in new buildings. Critical information includes component counts, dimensions, and on-site locations. Currently, this information is usually gathered using manual measurements, though contemporary digitization and scanning technology can be used to efficiently gather dimensional and geometric data about pre-demolition sites. The primary digital technologies to automate this data gathering, being photogrammetry and terrestrial Light Detection and Ranging (LIDAR), have historically shown significant gaps in efficiency and accuracy, while their hardware and software systems are rapidly advancing in capabilities. In this study, contemporary implementations of these methods are compared for their efficiency, interior coverage, and raw accuracy across two case studies with significant geometric differences. These results inform decision-making regarding the appropriate integration of these technologies in industry and identify technologies that require more development for effective use.
Proceedings of IASS Annual Symposia, 2022
ISSN:2518-6582
Proceedings of the IASS/APCS 2022 Beijing Symposium: Sustainable Heritage Challenges and Strategies in the Preservation and Conservation of 20th Century Historic Concrete Shells