Effects of Load Sequence on the Track-bridge Interaction

초록

In generally, to solve the interaction problem between the track and bridge, the various design codes adopted the recommendations of the UIC leaflet. The results of interaction can be calculated by the linear combination of the results obtained by the separate analysis of three elementary important loads. This conventional method completely neglects the influence of the loading history, and may have some error because of the behavior of the longitudinal resistance connecting the rail and the bridge-deck is under the highly nonlinear. In this study, by using the new modified method considering the sequential nonlinear loading combination and the effect of the loading history, the effects of load sequence on the track-bridge interaction are investigated.