Continuous Dynamic Monitoring of Human-Induced Vibrations at the Luiz I Bridge

Human-induced vibrations on Porto's Luiz I Bridge, a UNESCO-listed structure, are significantly exceeding comfort thresholds. Continuous dynamic monitoring since 2014 reveals high lateral vibrations during St. John festivities and vertical vibrations from athletic races, both linked to pedestrian-structure interaction phenomena like lock-in. These findings align with user-reported discomfort, underscoring the need for mitigation strategies. The study employed advanced monitoring systems installed by the University of Porto's Faculty of Engineering, providing quantitative data on vibration levels across both bridge decks.

Moutinho, C., Pereira, S., & Cunha, Á. (2020). Continuous Dynamic Monitoring of Human-Induced Vibrations at the Luiz I Bridge. Journal of Bridge Engineering, 25(8). https://doi.org/10.1061/(asce)be.1943-5592.0001580