Abstract
Built heritage has been documented by reality-based modeling for geometric description and by ontology for knowledge management. The current challenge still involves the extraction of geometric primitives and the establishment of their connection to heterogeneous knowledge. As a recently developed 3D information modeling environment, building information modeling (BIM) entails both graphical and non-graphical aspects of the entire building, which has been increasingly applied to heritage documentation and generates a new issue of heritage/historic BIM (HBIM). However, HBIM needs to additionally deal with the heterogeneity of geometric shape and semantic knowledge of the heritage object. This paper developed a new mesh-to-HBIM modeling workflow and an integrated BIM management system to connect HBIM elements and historical knowledge. Using the St-Pierre-le-Jeune Church, Strasbourg, France as a case study, this project employs Autodesk Revit as a BIM environment and Dynamo, a built-in visual programming tool of Revit, to extend the new HBIM functions. The mesh-to-HBIM process segments the surface mesh, thickens the triangle mesh to 3D volume, and transfers the primitives to BIM elements. The obtained HBIM is then converted to the ontology model to enrich the heterogeneous knowledge. Finally, HBIM geometric elements and ontology semantic knowledge is joined in a unified BIM environment. By extending the capability of the BIM platform, the HBIM modeling process can be conducted in a time-saving way, and the obtained HBIM is a semantic model with object-oriented knowledge.
Highlights
Built heritage geometric modeling has been conducted using reality-based data [1,2,3,4]
The scan-to-historic BIM (HBIM) mainly consists of two kinds of approaches, forward modeling and reverse modeling according to whether simulated primitives are predicted on the reference of historical documentation or not
The obtained HBIM model is composed of building information modeling (BIM) semantic elements, which are not defined with specific geometric parameters yet can be attached with the additional semantic, attribute, and relationship information
Summary
Built heritage geometric modeling has been conducted using reality-based data [1,2,3,4]. By importing the point clouds into the BIM software, the building components can be created using the existing BIM Industry Foundation Classes (IFC) classes and self-defined structures. In this kind of information models, the representation of the building is a coherent geometrical modeling of the reality and contains additional details typical of semantic, parametric, and relationship descriptions of its elements. Built heritage is characterized by heterogeneity in both aspects of geometry and semantics Such heterogeneity of HBIM brings new challenges to the usual sense of BIM, considering the complex geometric structures and knowledge composing heritage. Integration of obtained HBIM and ontology is explored with the capability of representation of a large amount of semantics, which combines the HBIM elements and historical knowledge in a unified BIM environment
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
