TY  - JOUR
PY  - 2012//
TI  - Dynamic analysis of a coupled high-speed train and bridge system subjected to collision load
JO  - Journal of sound and vibration
A1  - Xia, C.Y.
A1  - Lei, J.Q.
A1  - Zhang, N.
A1  - Xia, H.
A1  - De Roeck, G.
SP  - 2334
EP  - 2347
VL  - 331
IS  - 10
N2  - A dynamic analysis model is established for a coupled high-speed train and bridge system subjected to collision-load. A 7×32 m simply-supported high-speed railway bridge with box girders is considered as an illustrating case study. A high-speed China-Star train is traveling on the bridge. The time history curve of a drifting-floe collision force is obtained from a field experiment and introduced as the excitation load on the bridge piers. Then, the dynamic response of the coupled train-bridge system subjected to the measured drifting-floe collision is calculated. Afterwards, the running safety indices such as derailment factor, offload factor and lateral wheel-rail force of train vehicles are investigated. The results show that the dynamic response of the bridge subjected to a collision load is much greater than the one without a collision, resulting in a big influence on the running safety of high-speed trains. For the case study, a critical train speed curve is proposed to evaluate the running safety of train vehicles on the bridge under drifting-floe collision with various intensities.<p />  <p>Language: en</p>
LA  - en
SN  - 0022-460X
UR  - http://dx.doi.org/10.1016/j.jsv.2011.12.024
ID  - ref1
ER  -