抄録
This study is intended to establish a numerical approach to the site vibration around Shinkansen viaducts under running bullet trains. In this approach, the entire train-bridge-ground interaction system is divided into two subsystems: train-bridge interaction and foundation-ground interaction. Applying the dynamic reaction forces at the pier bottoms obtained from the train-bridge interaction analysis as input excitation forces, the ground vibration around the viaducts is simulated and evaluated taking advantage of a general-purpose program. The numerical results are compared with the experimental ones to confirm the validity of the analysis.
