This article presents the validation of a non-linear FE numerical model of a multi-span stone arch railway bridge based on experimental tests and under in-service freight trains. Static loading tests allow evaluating the bridge response in terms of vertical displacements in the arches, opening/closure deformations on specific block joints of the arches, and vertical compressive stress variations in the piers.      The bridge FE model is developed by combining the potentialities of a global continuous homogeneous model, based on FEM and Drucker-Prager model, and a local modelling approach based on a dedicated non-linear contact model. The freight vehicle modelling is based on a flexible FE approach, and the validation of the dynamic behaviour of the train-bridge system involved the comparison between numerical and experimental responses. All the numerical responses are in very good agreement with the experimental responses. Finally, a simulation of the dynamic behaviour of the train-bridge system is performed for realistic scenarios of freight traffic considering speeds between 40 and 140 km/h.  


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    Titel :

    Experimental validation of a non-linear train-track-bridge dynamic model of a stone arch railway bridge under freight traffic


    Beteiligte:
    Silva, R. (Autor:in) / Ribeiro, D. (Autor:in) / Costa, C. (Autor:in) / Arêde, A. (Autor:in) / Calçada, R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2024-01-02


    Format / Umfang :

    32 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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