Piotr Piotrowski successfully defended his doctoral dissertation at the Liechtenstein School of Architecture, Built Heritage & Upcycling Unit. The thesis was supervised by Prof. Dr Daniel Stockhammer, with co-supervision by Prof. Dr Andreas Putz of the Technical University of Munich.

The research focuses on the quality and structure of BIM data for deconstruction analysis and asset management. Although BIM models are increasingly available, the lack of specialised analysis tools and BIM-based digital material databases continues to limit their practical application as digital twins for material reuse.

To define key requirements, Piotr Piotrowski developed a design science-based research approach. Guided interviews with experts in circularity and digitalisation were conducted to identify the essential characteristics of digital material storage systems. A prototype BIM-based material bank was used as a stimulus to gather practice-oriented requirements and translate them into a detailed technical blueprint.

The results show how digital material banks can process material information contained in BIM models and make it usable for deconstruction and reuse processes.

 In doing so, they unlock the latent value of existing digital twins for material reuse. The dissertation thus provides important insights for the development of circular material flows and highlights the potential of digital technologies for sustainable construction and deconstruction practices.

The University of Liechtenstein warmly congratulates Piotr Piotrowski on this achievement and wishes him all the best for his professional and personal future.