Structural Design of a Cycle-Pedestrian Footbridge Using BIM Methodology: A Case Study in Verbania, Italy

This thesis explores the structural design of a pedestrian and cycle footbridge using Building Information Modeling (BIM) methodology, with a case study set in Verbania, Italy. The work was developed within a professional context at L.G.A. Engineering, which has substantial expertise in BIM methodology and steel structures. The project integrates the full BIM workflow—from conceptualization to structural verification and architectural visualization—leveraging softwares such as AutoCAD, Advance Design, IDEA StatiCa, Revit, and Twinmotion. Key focus is given to interoperability among these platforms to ensure an efficient and consistent flow of data throughout the design process. The project aims to enhance sustainable mobility infrastructure while complementing the surrounding urban and natural landscape. The bridge design features a 160-meter long half-through arch structure composed of steel and a wood deck. Structural analysis adheres to Italian (NTC 2018) and European (Eurocodes) standards, and includes both ultimate and serviceability limit states, with specific checks for strength, stability, deflection, and human comfort. Local analysis were carried out. Comfort checks were also performed to assess vibrational behavior under pedestrian traffic. The project includes a study of the bearing configuration to balance load transfer and movement constraints. The architectural component was developed using Revit and rendered in Twinmotion, emphasizing the integration with its environmental context. The study concludes by demonstrating how BIM enables a holistic approach to infrastructure design—facilitating multi-disciplinary collaboration, improving accuracy, and enhancing the project’s lifecycle management.