Hbim for Archaeological Sites: From SFM Based Survey to Algorithmic Modeling

Abstract

<p><strong>Abstract.</strong> The implementation of new technologies often leads research towards experimentation with new methodological approaches. The BIM process applied in cultural heritage is increasingly consolidating its practices, expanding its potential even in the field of archaeological research. Integrating archaeological data into BIM models has clear benefits but, due to the complexity of the involved elements, archaeological case studies can fit effectively into the BIM process only with the creation of semantic-aware libraries implementing dedicated objects. Cultural heritage can advantage of BIM-based knowledge management only integrating approaches and tools with different characteristics from those commonly used in BIM workflows. In the phase of the geometric modeling process, following that of the survey process and preparatory to the subsequent information modeling process, when the detected geometries are not easily traceable to libraries of pre-compiled objects, an alternative to the so-called "Scan to BIM" local modeling can be represented by algorithmic modeling. The paper, focusing on the geometric modelling phase of the HBIM process, presents first results and prospective tasks of an ongoing research project on the last architectural phase of the colonnade of a multilayered temple in the Antas valley in Sardinia (Italy), affected by imposing works of anastylosis and restoration.</p>

Analytical Representation of Architectural Built Heritage. A Sketch-to-Bim Approach

“…This type of approach overcomes many of the limitations imposed by traditional tools, such as the limited management of nested parameters or the generation of shapes according to complex geometric or mathematical rules. In previous research, this methodology has been applied to elements that are complex from the point of view of form, but presumably based on very precise geometric rules, such as cross vaults or column shafts (Bagnolo & Argiolas, 2021;Bagnolo et al, 2019). The identification and application of these geometric rules, derived for example from historical treatises, thus form the basis of the development process of the modelling algorithms, as well as one of their strengths, since the algorithms themselves, by preserving the construction rules used, become a source of knowledge in future uses.…”

“…Geometric modelling that dimensionally accurately represents the case study, coupled with the potential for enriching the elements with physical information from the BIM environment, allows, for example, static analyses of structures to be carried out. In particular, past experiments have shown how the surfaces of the intrados of the vaults, procedurally generated through the algorithms used in this paper, can offer a sufficiently limited level of error for the execution of analysis on the stresses or deformations of the vaults (Argiolas et al, 2019); in the same way the columns, modelled algorithmically, are integrated into the BIM model in the same way as a classic column family, allowing the same static treatment.…”

As-Textured As-Built BIM Using Sensor Fusion, Zee Ain Historical Village as a Case Study

“…Such features require precise recording and detailed surveys that can be appropriately interpreted and modeled on the BIM platform [13]. Modern 3D survey techniques, such as terrestrial laser scanning (TLS) and photogrammetry, were recently proposed in different lectures as possible methods for reconstructing heritage geometry in BIM, the remotely sensed point cloud acquisition technique called Scan-to-BIM [14][15][16][17].…”

A Scan-to-BIM Methodology Applied to Stone Pavements in Archaeological Sites

“…In order to obtain libraries of parametric objects, the possibility of using automation tools was also explored [29].…”