Long-Span Bridge Aeroelasticity against Stationary and Nonstationary Wind Loads: Emerging Research Experiences
Seminar held by Prof. Luca Caracoglia at University of Bologna
Posted on by Vincenzo Picozzi
The presentation introduces a probability-informed algorithm for “load uncertainty propagation”. Stemming from theoretical derivations, the stationary joint-probability distribution of the generalized bridge deck response is found, accounting for various perturbations and, particularly, a random variable that quantifies errors in the span-wise wind load correlation. Both flutter and buffeting responses are considered, detailing also some innovative active stabilizers based on the gyroscopic effect.
Finally, the classical theory of bridge aeroelasticity is re-examined in the context of nonstationary wind loads, for example emerging from extreme thunderstorm outflows and gust fronts. A 1200 m bridge example, modeled after the Golden Gate Bridge (USA), and a 3000 m bridge example, modeled after the Messina Strain Bridge (Italy), are used as benchmark structural examples.
The seminar will be held on 9th December 2024, h10:00, Aula LAMC, University of Bologna (Viale del Risorgimento 2). For further info please contact luca.patruno@unibo.it
