Prediction of structure-borne vibrations induced into a large structure by train passage

The paper presents a numerical approach for the prediction of train induced vibrations into large civil structures. The procedure is based on time domain simulation of train-track-structure interaction. The calculation is split into two stages to manage structure representations with a high number of degrees of freedom: in the first step, the dynamics of a train on the track and a simplified structure model is analysed; in the second one, the forces transmitted by the track system to the complete structure are used to analyse the transmission of vibrations inside the building.