Abstract
The BIM process applied to the built environment represents a much debated topic in the last decade, but it still contains unanswered questions. National and international frameworks introduced standards mainly focused on the levels of detail definition related to new project, leaving a wide interpretation on the 3D reconstruction of existing building. On the other hand, the increase in the use of this modeling approach and the possible expansion of this application in the nearly future lead to predict a significant rise in built field, requiring a general assessment both on global methodology and on its peculiarities. Starting from the complete description and analysis of two modern railway architectures, based on integrated survey, 2D representation up to 3D modeling in BIM environments, the article tries to highlight the limits in the 3D BIM modeling applied on existing construction, suggesting possible solutions in relation with the obtained results. The process is critically evaluated in each passage, in order to focus the BIM research areas useful for built environment analysis.
Highlights
The BIM process applied for modeling, representing, and managing built artifacts is a subject that has been debated for a decade in different scientific and disciplinary fields, providing answers functional to solve specific problems
On the one hand, the potentiality of Historic Building Information Modeling (HBIM) has led to different declinations into specific application areas, such as ArcheoBIM, ARBIM, GeoBIM, SeismicBIM, and InfraBIM, which has led to develop methodologies devoted to solving some investigation aspects
It is important to remark that BIM can express its full potentiality in the project of new buildings, a reason why many of the international standards do not deal with the problem of construction
Summary
The BIM process applied for modeling, representing, and managing built artifacts is a subject that has been debated for a decade in different scientific and disciplinary fields, providing answers functional to solve specific problems. The definition of the case studies is framed inside a research project between Rome Sapienza University and the Emilia-Romagna Railway Company (FER), defining the survey and modeling activities of two railway buildings, “Modena Piccola” Station and Reggio Emilia “Santo Stefano” Station. These modern architectural examples have been identified to highlight the bottlenecks in converting real data into a BIM model for verifying, managing, and cataloguing the consistency of the company’s assets. The first preliminary results [1] have been refined and enriched in this article with further analysis, conceiving possible answers or compromise solutions to obtain a useful result, with respect to the research purpose, while focusing on the general methodology and flexibility of the modeling and representation system
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