Published: Građevinar 78 (2026) 4
Paper type: Scientific research paper
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Numerical investigation of barge collision with a bridge column

A vessel-bridge collision can result in severe loss of life and substantial damage. This study presents a numerical analysis of the vessel impact on a column of the Ilok-Bačka Palanka bridge in Croatia. Using finite element modelling, different barge–column interactions under multiple loading conditions were simulated. The numerical model includes realistic vessel and bridge-pier geometry, as well as material behaviour. The numerical simulation results were compared with the damage caused to the column after the impact. The column damage was evaluated using a concrete degradation modelled via an erosion-based algorithm driven by instantaneous geometric strain. The calibrated numerical model was also used in a parametric analysis to determine the influence of the impact direction and speed on the observed bridge pier.

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