This paper discusses the importance of track irregularities in railway bridge design, and presents a new technique for calculating the dynamic impact load induced by such irregularities: the structural articulation method. The properties of the combined bridge-suspension system are coupled through global mass, stiffness, and damping matrices. Under the proposed method, the true suspension system over a particular point on the bridge girder at time t is divided into equivalent suspension systems attributed to adjacent finite-element nodes of the bridge. The time-dependent effects of a moving mass are thereby included in the equation of motion.


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    Titel :

    A structural articulation method for assessing railway bridges subject to dynamic impact loading from track irregularities


    Beteiligte:
    Gu, G. (Autor:in) / Lilley, D. M. (Autor:in) / Franklin, F. J. (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 48 , 10 ; 1077-1095


    Erscheinungsdatum :

    2010-10-01


    Format / Umfang :

    19 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt