Collaborative BIM-AR Workflow for Maintenance of Built Heritage

The research proposes a BIM-AR workflow to ensure the monitoring of the built heritage.Indeed, the application of AR might be an extension of the BIM since it allows during the on-site surveys’ phases to add and update punctual information within the BIM model overcoming the tradi-tional survey methods based on cards. Consequently, the information models can act as collaborative tools at the service of public autorithies and stakeholders, thus supporting an efficient building man-agement, also from a preventive perspective. The research is a development based on the results of the Fondamenti di modellazione BIM per il settore delle costruzioni[1] academic course of the master’s degree course in Ingegneria Edile-Architettura [2] of the University of Padua. Starting from the students’ BIM models, the workflow exposes the integrability of the AR during the on-site survey campaigns of a case study to verify the geometric accuracy and the structural problematics of the BIM models overlapped to the real buildings by recording the information directly on them.