Experimental Study on Track-Bridge Interactions for Direct Fixation Track on Long-Span Railway Bridge
Joint Authors
Kim, Sun-Hee
Choi, Jung-Youl
Chung, Jee-Seung
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The rail and track girder of the direct fixation track (DFT) system on the Yeongjong Grand Bridge (YGB) in Korea exhibit integrated behavior.
Therefore, unlike the DFT system in general concrete tracks, the track support stiffness (TSS) of the DFT system on the YGB cannot be evaluated with only the displacement of the rail.
The actual TSS of the DFT system supported by the flexible track girders was lower than that of the DFT system supported by the general substructure.
For this reason, field measurements and a finite element analysis that reflects the actual operating speed of railroad vehicles on the YGB (i.e., Airport Railroad Express (AREX), nonstop Airport Railroad Express (AREX Express), and Korea Train Express (KTX)) were conducted in this study to determine the interactions between the rail and the track girder.
The results indicated that the DFT system on the YGB is supported by track girders that exhibit relatively flexible behavior.
As a result, the TSS is directly influenced by the bending stiffness of the track girder.
American Psychological Association (APA)
Choi, Jung-Youl& Chung, Jee-Seung& Kim, Sun-Hee. 2019. Experimental Study on Track-Bridge Interactions for Direct Fixation Track on Long-Span Railway Bridge. Shock and Vibration،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1210992
Modern Language Association (MLA)
Choi, Jung-Youl…[et al.]. Experimental Study on Track-Bridge Interactions for Direct Fixation Track on Long-Span Railway Bridge. Shock and Vibration No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1210992
American Medical Association (AMA)
Choi, Jung-Youl& Chung, Jee-Seung& Kim, Sun-Hee. Experimental Study on Track-Bridge Interactions for Direct Fixation Track on Long-Span Railway Bridge. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1210992
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210992