This study investigates the dynamic behaviour of railway bridges crossed by travelling trains. A simplified formulation was adopted in order to perform a direct analysis of the effects of the parameters involved in the problem. The bridge is modelled as a rectangular plate, while the trains are modelled as travelling inertial distributed loads. The formulation is accomplished by the use of the Rayleigh-Ritz method, yielding a low order model with time-dependent coefficients. Several numerical examples are presented and discussed, aimed at investigating the effects of each of the model-governing parameters.
Dynamic analysis of railway bridges by means of the spectral method / Catania, Giuseppe; Sorrentino, Silvio. - 4:(2011), pp. 21-29. (Intervento presentato al convegno 29th IMAC, a Conference on Structural Dynamics, 2011 tenutosi a Jacksonville (Florida, USA) nel 31 january - 3 february 2011) [10.1007/978-1-4419-9316-8_2].
Dynamic analysis of railway bridges by means of the spectral method
SORRENTINO, Silvio
2011
Abstract
This study investigates the dynamic behaviour of railway bridges crossed by travelling trains. A simplified formulation was adopted in order to perform a direct analysis of the effects of the parameters involved in the problem. The bridge is modelled as a rectangular plate, while the trains are modelled as travelling inertial distributed loads. The formulation is accomplished by the use of the Rayleigh-Ritz method, yielding a low order model with time-dependent coefficients. Several numerical examples are presented and discussed, aimed at investigating the effects of each of the model-governing parameters.
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