Vehicle-bridge interaction in railways: forward and inverse applications

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• Dr Charikleia Stoura, ETH
• Friday 01 December 2023, 16:00-17:00
• JDB Seminar Room, CUED.

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The increasing demand for mobility worldwide has led to an ever-increasing expansion of railway networks. Such a rapid expansion poses a challenge to guaranteeing quality, reliability, efficiency, and, most importantly, the safety of railway infrastructure. A large portion of railways spans across bridges, which must also accommodate the rising demands for mobility and increased travel speeds, placing additional demands in terms of imposed loads. At the same time, bridges worldwide suffer from aging, leading to the deterioration of their structural integrity. Such needs call for special attention during the design phase and later during operation. The latter constitutes the operation condition monitoring of bridges and aims at ensuring their safe operation during their lifetime. To this end, this talk presents, first, recent advancements in the field of vehicle-bridge interaction on railways, which could lead to safer practices in railway bridge design. This part lies upon a detailed forward modeling of vehicle-bridge interaction and the development of consistent decoupling methodologies. The second part of this talk examines the inverse vehicle-bridge interaction as a principle to develop efficient in-direct monitoring methodologies to assess the structural health of railway bridges.

This talk is part of the Engineering - Dynamics and Vibration Tea Time Talks series.

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