| Abstract [eng] |
The use of Digital Twin (DT) is becoming increasingly widespread in the construction industry. Considering that buildings are complex geometric structures that may change throughout their lifespan, it is essential to maintain up-to-date DT geometry. Despite its importance, the relation- ship between a building's physical geometry and its DT counterpart remains under-researched due to technical, financial, and practical challenges. This article aims to provide a comprehensive overview of current research on updating the geometry of DT in construction, identifying gaps and challenges for future research, with a focus on the life-cycle stages where updating the DT geometry is most relevant. Additionally, this paper examines the most used equipment and data collection methods, as well as the data processing and integration techniques used in DT. This study comprehensively reviews and analyses the DT concept, which involves the creation of a vir- tual model that accurately reflects the geometry of a physical object, and examines the DT con- cept from this perspective. Through a systematic literature review (SLR) and bibliographic analy- sis, this research examines various methods for updating the geometry of a DT. The methodology involved analyzing a final sample of 56 articles that met the inclusion and exclusion criteria. On the basis of the analysis, the study identifies six main directions that recent publications in this field have focused on. These directions highlight the main achievements and obstacles in the field and include the use of UAV/photogrammetry and laser scanning as data collection methods for building geometry, data visualization, updating the geometry of the virtual model in manufactur- ing, the application of DT in modular construction, and structural monitoring. Based on the SLR, this study has identified key areas that require further research and existing challenges in updat- ing the geometry of the DT. Addressing these challenges will be critical to promoting the wide- spread adoption of DT in the construction industry. Therefore, the study highlights the impor- tance of updating geometry data in the DT to improve the quality of the data and maximize the benefits of technology in the construction sector. |
