Dynamic Response of Turnout Structure by Travelling High Speed Trains
Date Issued
2010
Date
2010
Author(s)
Wu, Kun-Ping
Abstract
For the operation reliability of high speed rails both the safety of bridge structure and the security of track structure are the most important issues. Turnout is indispensable track structure among the structure of the track system, when the train travel, from one to other track, turnout is the device which allows to convert the direction of the train. When the high speed train passes through the turnout structure on viaduct, the dynamic responses of the train, turnout and bridge structure are strongly affected by the overall strength and stability of turnout and the safety and the riding comfort of rolling stock influenced by turnout structure is a key issue of track system.
This thesis focus on the dynamic responses of BWG type 2S turnout induced by 700T train of Taiwan High Speed Rail with different speed. The effects of the viaduct on the dynamic response of overall turnout and bridge structures were also investigated.
Finally, using the principle of linear superposition the dynamic response of turnout induced by 12 trains was assembled by the results obtained by single train analysis in accordance with time difference of passing trains.
Subjects
high speed train
track structure
turnout structure
viaduct
finite element analysis
dynamic response
Type
thesis
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