Short overhanging beams usually exist at both ends of a simply supported bridge. As a train
passes through the overhanging beams of the bridge at high speeds, the overhanging beams would be
subjected to intensive vibrations, from which the dynamic response of the train-bridge system would
be built up. To mitigate the amplified response of the train-bridge system due to the overhanging beam
effects, an end rotational spring to restrain the relative rotations is equipped between the free ends of
the adjacent beams. By the vehicle-bridge interaction finite element analysis, the numerical studies
indicated that the overhanging beams play a key role in amplifying the response of the train-bridge
system. Even so, the proposed end restraintscan reduce the amplified response of the VBI system
significantly
關聯:
Journal of Applied Science and Engineering 19(3), pp.259-266
