HBIM Applied in Structural Project in the Refurbishing of an Antique Building

The Building Information Modelling (BIM) methodology have been applied in distinct domain of the construction activity. A recent perspective concerning Heritage Building Information Modelling (HBIM) supports of the conservation, rehabilitation or refurbishing of buildings of patrimonial value. As the main fundament of BIM is the generation of virtual parametric models, representing the building project or the existing building with the required accuracy in configuration and mechanical properties, to generate a HBIM model it is necessary to create a library with specific parametric objects. A selected study case, a 19th century house, was analysed. The proposed remodelling design involves an architectural study that leads to the establishment of a solution were wooden floors are replaced by a composite slab. The main objective of the present study is to develop the new structural solution, using BIM platforms. However, the process requires a sequence of steps: modelling the antique building and the new slab elements with accuracy, requiring the generation of new objects; the transference of the analytical model to a software in order to perform the structural analyses; the archive of documentation antique and post-analyses. The project aims to drive the implementation of BIM methodology in construction projects of heritage buildings in Portugal, both through the development of libraries for families of specific parametric objects, and strategies to overcome the inherent limitations of the degree of interoperability found in the case of study.

Keywords: BIM; HBIM; New parametric objects; BIM interoperability; Composite slab; Structural project