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http://dx.doi.org/10.7782/JKSR.2012.15.1.062

Analysis of dynamic behavior of Railroad Steel Bridges According to Bridge Bearing Types  

Choi, Eun-Soo (홍익대학교 공과대학 토목공학과)
Choi, Seung-Hwan (홍익대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Society for Railway / v.15, no.1, 2012 , pp. 62-70 More about this Journal
Abstract
Dynamic behaviors of line type bearings, spherical bearings and disk bearings which are being used for railway steel bridges are investigated, and that of the bridges is also analyzed. For the purpose, the vertical displacements of the three bearings including fixed and expansion type are measured and analyzed. Also, the deformation of the PTFE plate placed inside of spherical and disk bearings of expansion type is measured and its effect on the dynamic behavior of the bridges is discussed. The up-lift phenomenon at the bearings installed for the steel bridges is estimated. The vertical displacements at mid-span of the bridges are compared according to the bearing types. Finally, the 1st mode natural frequencies are estimated and the relationship to the vertical displacement is discussed.
Keywords
Railway steel bridges; Spherical bearings; Disk bearings; Line type bearings; Up-lift phenomenon;
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  • Reference
1 C.W. Roeder, J.F. Stanton, T.I. Campbell (1995) Rotation of high load multirotational bridge bearings, Journal of Structural Engineering, 121(4), pp.747-756.   DOI   ScienceOn
2 E. Choi, H.U. Lee, J.I. Kim (2008) Variation of Natural Frequency and Dynamic Behavior of Railway Open-Steel-Plate-Girder Bridge with Installing Disk Bearings, Journal of KSSC, 18(4), pp. 437-446.
3 H. Eggert, W. Kauschke (2002) Structural Bearings, Ernst & Sohn, A Wiley Company, Heppenheim, Germany.
4 T.W. Steele (2001) Electrical properties of ceramics, University of Southampton, ISVR Memorandum ISAV 101.
5 M. Petyt (2005) Measurement process of plate vibration, U.S. Patent No. 2,043,416.
6 Korea Rail Network Authority (2005) 100 years history of Korea Railway Construction, Korea Rail Network Authority, Daejeon, Korea.
7 E. Choi, H.U. Lee, S.Y. Lee (2008) Maintenance and Dynamic Behavior of Advanced Spherical Bearings under Railway Open-Steel-Plate-Girder Bridges, Journal of The Korean Society for Railway, 11(2), pp. 165-175.
8 J. Park, E. Choi (2011) Fragility analysis of track-on steelplate-girder railway bridges in Korea, Engineering Structures, 33(3), pp. 696-705.   DOI   ScienceOn
9 S.H. Oh, E. Choi, J.Y. Jung (2005) The Estimated Stiffness of Rubber Pads for Railway Bridges, Journal of KSSC, 17(3), pp. 307-316.