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Static and Dynamic Behavior of Disk Bearings under Railway Vehicle Loading  

Oh, Saeh Wan ((주)서영엔지니어링)
Choi, Eun Soo (한국철도기술연구원)
Jung, Hie Young (서울시립대학교 토목공학과)
Kim, Hak Soo (호남대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.4, 2006 , pp. 469-480 More about this Journal
Abstract
The goal of this study is to ases the static and dynamic behavior of disk bearings under railway vehicle loadings. Several static tests were conducted in a laboratory t bearings, all having the same kind of polyurethane disk as used in the static tests, were installed under a full-sized railway bridge and tested with a running locomotive, the tests results, the static and dynamic stiffness of the disk bearings were estimated and compared. the deformation of the disk bearings under the bridge was measured at varying disk bearing was almost half of that under dynamic loading. In addition, the dynamic stiffness of the fixed disk bearing was 80% higher than that of an expansion disk bearing, since the PTFE in the expansion bearing is displaced. The deformation of the disk bearing did not vary significantly with changes in locomotive's speed. The results of this study can contribute to fast-tracking the formulation of a design technique for disk bearings for railway bridges.
Keywords
Disk bearing; polyurethane disk; PTFE; dynamic stifnes; railway bridge;
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Times Cited By KSCI : 1  (Citation Analysis)
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