Exchange Information Requirements (EIR) in BIM Uses for the structural analysis of historic buildings: the case study of Aldobrandeschi Palace in Grosseto

The digitalization process of cultural heritage is crucial for preservation and enhancement of historic buildings. This study focused on Exchange Information Requirements (EIR) for H-BIM modelling of Aldobrandeschi Palace in Grosseto (Italy), aiming structural analysis of the historic building and entailing the use of BIM authoring software (Autodesk Revit) and FEA structural software (DIANA). The research carried out several phases, starting with historical analysis and geometric survey, integrating internal measuring with laser device and capturing external geospatial data through photogrammetric procedures. The authoring modelling of architectural and structural discipline was performed to optimize interoperability with the specific structural analysis software, posing various challenges and requiring innovative solutions to improve the data exchange between the two different software. The structural model was undergone to seismic analysis following guidelines for calculating the structural integrity of monumental historic buildings in masonry, leveraging information from the BIM model. The outcome is a digital model providing a wealth of information for managing, conserving, and restoring the historic building. Specifically, the digital model can serve as database for restoration projects and structural analysis of the historic building. Moreover, this work intends to offer a contribution to promote collaboration among actors of different disciplines involved and improve the mutual understanding of interoperability issues.