PSI - Issue 62

Massimiliano Bregolin et al. / Procedia Structural Integrity 62 (2024) 916–923 M. Bregolin et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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replacement of some severely degraded elements. However, it’s crucial to consider that, due to its suspended bridge design, the structure exhibits a “physiological” deformability. Recurring to modern monitoring techniques, the analyses here performed suggest preserving this historic footbridge by encompassing periodic inspections on the structure, possibly with real-time checking. With this approach, the structural behavior of the footbridge could be monitored to promptly intervene in case of any emerging issues. Regarding horizontal deformability, this critical aspect could be solved by intervening with specific constraints to horizontal displacement. The preparatory experimental tests here discussed showed the efficiency of such an intervention. Certainly, this first finding would require additional simulations to numerically evaluate the optimal intervention configuration, among rigid constraints, damping devices, mechanical bumpers and tuned mass dampers. Together with highlighting the issues that this structure faces over time, this work aimed also to underline the values the historical, artistic, and social value of this footbridge that was recognized as a milestone in the history of pedestrian bridges (Do.co.mo.mo Association, 2023) Acknowledgments The authors would like to express their gratitude to Arch. C. Romaro, E. Giuffrè, head of the company Metra Lab, C. Lugnani, head of the company R.C.L., Dr. Geol. R. Oliveri experimenter in the Material Analysis Laboratory Geo Consulting, Eng. T. Lucca, head of the engineering firm of the same name, Eng. L. Greco, Eng. A. Lugli, Eng. M. Schivalocchi, and Eng. A. Babato for their valuable contributions and expertise during the course of this research. References Antinori, M., Romero, M., Acciaio, F.P., 2017. Passerelle ciclopedonali in acciaio. Casi pratici ed esempi realizzativi. Flaccovio Dario. (In Italian) Chiacchiari, S., Lofrano, E., Paolone, A., Romeo, F. , 2016. Comfort in Pedestrian Footbridges. Part 1: Comparative Analysis of Regulatory Criteria" Metal Structures. ISSN 0010-9673. Print. 5, 12-26 (In Italian). Chiacchiari, S., Lofrano, E., Paolone, A., Romeo, F. , 2017. Comfort in Pedestrian Footbridges. Part 2: A Case Study. Metal Structures. ISSN 0010- 9673. Print. 6, 11-24 (In Italian) Cutrone, B., Salvatore, W., Renzi, E., Tamasi, G., 2023. Guidelines for the classification and management of risk, for the evaluation of safety and for the monitoring of existing bridges. Critical analysis and identification of innovative methods to improve the classification of landslide risk. Procedia Structural Integrity 44, 713-720. Do.co.mo.mo Association, 2023. "Via Goito Footbridge – Padua: Appeal to the Municipality of Padua." Retrieved from: https://www.docomomoitalia.it/2023_passerella-di-via-goito-padova/ Accessed 28/11/2023 Geoconsulting, Material Analysis Laboratory,2023. "Test Report 18104 issued on 15/06/2023.", (In Italian). Lion, C., & Pellegrino, P., 2016. "The Suspended Pedestrian Footbridge of Roncajette: Analysis of a Historical Work and Resto ration Project." Bachelor's thesis, University of Padua. Macfarlane, A., 2006. Briefing: Restoration of Bersted Crossing footbridge, Bognor Regis, UK. Proceedings of the Institution of Civil Engineers - Bridge Engineering 159, 93 – 95. https://doi.org/10.1680/bren.2006.159.3.93 Metra Lab Srl., 2021. Laboratory Report N. 3278, "Comune di Padova - Passerella in via Goito." (In Italian). Metra Lab Srl., 2022. “OMA Investigation of October 2022 - Footbridge on Via Goito." (In Italian). Hasan, R., Napiah, M., 2017. Utilization of footbridges: Influential factors and improvement proposals. Advances in Transportation Studies November 2017, 43 – 60. https://doi.org/10.4399/97888255077374 MIT, 2022. Piano Nazionale Sicurezza Stradale 2030. Retrieved from: https://www.mit.gov.it/node/15908 . Accessed 20/11/2023 Natali, A., Cosentino, A., Morelli, F., Salvatore, W., 2023. Multilevel Approach for Management of Existing Bridges: Critical Analysis and Application of the Italian Guidelines with the New Operating Instructions. Infrastructures, 8(4), 70. Padua Walls Committee, Walls Park 2014 Project Report, 2014. The Walls Park – Touristic and cultural enhancement project of the Renaissance Bastioned Front of Padua, pp25, (In Italian). Padua Municipality - Public Works Department, 2020. Urgent Safety Measures for the Via Goito Footbridge. (In Italian) Retrieved from https://www.padovanet.it/sites/default/files/attachment/passerella%20di%20via%20Goito%20Relazione.pdf. Accessed 28/11/2023 Siviero, E., 2019. "The Project - Cyclable Padua." Galileo, 190, pp.27, (In Italian). Siviero, E., Culatti, M., Stocco, A., 2013. "Pedestrian Footbridges as a Form of Urban Regeneration." In: Proceedings of the CIAS Seminar on the theme "Evolution in experimentation for constructions," 285-299, (In Italian). Romaro, C. , 2022. Paduan Engineering in the Mid-20th Century Narrated through Three Suspended Footbridges.Galileo, 262, 9 – 16, (In Italian). Romera, L., Hernández, S., Baldomir, A., Nieto, F., 2020. Study of pedestrian comfort in a three span stress ribbon footbridg e with carbon fibre cables. Presented at the HPSM/OPTI 2020, pp. 139 – 152. https://doi.org/10.2495/HPSM200151 Università Degli Studi di Padova, 2022. Passage Ropes - Suspended Footbridges from the 1950s in Padua. Retrieved from: https://www.dicea.unipd.it/funi-di-passaggio-le-passerelle-sospese-degli-anni-cinquanta-del-novecento-padova Accessed 20/11/2023 Yang, S., Yang, J., Li, R., 2023. Evaluation of Pedestrian Comfort for a Footbridge with Hinged Piers. Sustainability 15, 9851. https://doi.org/10.3390/su15139851