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Encompassing measurements, advanced analysis and BIM for Digital Twinning of steel structures Chacón Flores, Rolando Antonio Ramonell Cazador, Carlos Posada Cárcamo, Héctor José Sierra, Pablo Leonel Clarés Garcia, Antoni Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental Universitat Politècnica de Catalunya. Doctorat en Enginyeria de la Construcció Universitat Politècnica de Catalunya. Doctorat en Anàlisi Estructural Universitat Politècnica de Catalunya. ATEM - Anàlisi i Tecnologia d'Estructures i Materials Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques Steel, Structural Measurements Advanced analysis BIM Digital Twins Interoperability Steel structures Construccions metàl·liques With advanced analysis techniques, such as FE-analysis and computational modeling, engineers gain deeper insights of the behavior of steel structures. On the other hand, established technologies, such as sensors, cameras, or laser scanners, offer new ways to measure and monitor the behavior of structural systems with unprecedented accuracy and ease of data use. By deploying these devices strategically, engineers can capture critical data points providing understanding of structural behavior, condition and performance. Moreover, Building Information Modelling methods and their evolutionary transition to twins provide collaborative arenas for the integration of virtual representations together with physical and characteristics of a structure. These representations facilitate visualization, coordination, and communication throughout the construction lifecycle. Encompassing advanced analysis, measurements, and BIM represents the core concept of a multilayered digital twin presented in this paper. This paper presents a discussion on this concept through the lens of steel structures design using advanced analysis, data integration and interoperability. Some developments related to educational steel structures twins are also described. Authors acknowledge the funding of research projects based on Digital Twins for the Built Environments. Respectively, DI-2021, as part of the Industrial PhD program on Doubly Curved Digital Twins and “Ashvin- Assistants for Healthy, Safe, and Productive Virtual Construction Design, Operation & Maintenance using a Digital Twin” as an H2020 project under agreement 958161 that provides access to two demonstrators depicted in the paper. Postprint (published version) 2023 Conference report Chacon, R. [et al.]. Encompassing measurements, advanced analysis and BIM for Digital Twinning of steel structures. A: International Conference on Thin-Walled Structures. "Program ICTWS2023: Ninth International Conference on Thin-Walled Structures". Sidney: University of Sidney, 2023, p. 1-20. https://hdl.handle.net/2117/397957 eng https://www.ictws2023.org.au/wp-content/uploads/2023/11/Rolando-Chacon.pdf info:eu-repo/grantAgreement/EC/H2020/958161/EU/Assistants for Healthy, Safe, and Productive Virtual Construction Design, Operation & Maintenance using a Digitial Twin/Ashvin Restricted access - publisher's policy 20 p. application/pdf University of Sidney