TRAIN-AND BRIDGE-INDUCED RESONANCE OF HIGHSPEED TRAINS MOVING OVER A SERIES OF SIMPLE OR CONTINUOUS BEAMS
For a train composed of a number of identical cars moving over a bridge at high speeds, train-induced resonance on the bridge may occur when any of the frequencies of the bridge coincides with any of those implied by the wheel loads.On the other hand, for a vehicle moving over a series of bridges with identical spans at constant speeds, bridge-induced resonance on the vehicle may occur when any of the frequencies of the vehicle coincides with any of those of the bridges.This paper provides a complete coverage for the train-and bridge-induced resonances on the train-bridge systems, with focus placed on the interacting mechanism between the two subsystems.In addition, a vehicle-bridge interaction (VBI) element considering the rails effect is developed.The examples indicate that the train-induced resonance on the bridges takes place at higher speeds, but the bridge-induced resonance on the train cars at lower speeds.Neglecting the rails effect may underestimate slightly the beam response in the high-speed range, and less slightly the moving vehicle response for all speeds considered.
High speed train rail resonance VBI element vibration
Y.B.Yang J.D.Yau
School of Civil Engineering, Chongqing University, China,Also, Department of Civil Engineering, Nati Department of Architecture, Tamkang University, New Taipei City, Taiwan
国际会议
西安
英文
305-308
2017-09-11（万方平台首次上网日期，不代表论文的发表时间）