Static and Dynamic Behavior of Disk Bearings under Railway Vehicle Loading

철도차량하중에 의한 디스크받침의 정·동적 거동특성

  • 오세환 ((주)서영엔지니어링) ;
  • 최은수 (한국철도기술연구원) ;
  • 정희영 (서울시립대학교 토목공학과) ;
  • 김학수 (호남대학교 토목공학과)
  • Received : 2006.03.07
  • Accepted : 2006.07.21
  • Published : 2006.08.27


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.


  1. AASHTO (1996) AASHTO LRFD bridge design specifications, Washington, D.C.
  2. Burpulis J.S., Seay, J.R. and Graff, R.S. (1990) Neoprene in Bridge Bearing Pads- The Proven Performance, Extending the Life of Bridges, ASTM STP 1100, American Society for Testing and Materials, Philadelphia, pp. 32-43
  3. Choi, E., Kim, H.M., Oh, J.T and Kim, S.G. (2005). Analysis of Dynamic Behavior of Open-Steel- Plate-Girder Bridges Due to Installing Rubber Pads, Journal of Korean Society of Steel Construction, Vol.17, No. 3, pp. 295-306
  4. Eggert, H. and Kauschke, W. (2002). Structural Bearings, Ernst & Sohn, A Wiley Company, Berlin, German
  5. ERRI D 190 (1995) Permissible Deflection of Steel and Composite Bridges for Velocities V>160km : RP 5 Parametric Study Studies-Summary and Recommendations Final Report
  6. Oh, S.W., Choi, E. and Jung, H.Y. (2005). The Estimated Stiffness of Rubber Pads for Railway Bridge, Journal of Korean Society of Steel Construction, Vol. 17, No. 3, pp. 307-316
  7. Ramberger, G. (2002). Structural Bearings and Expansion Joints for Bridges, IABSE-AIP-IVBH, Zurich, Switzerland
  8. Roeder, C.W. Stanton, J.F. and Taylor, A.W. (1987). Performance of elastomeric bearings, NCHRP Rep. No. 298, Transportation Research Board, Washington, D.C
  9. Stanton, J.F. and Roeder, C.W. (1985). Elastomeric bearings design, construction, and materials, NCHRP Rep. No. 248, Transportation Research Board, Washington, D.C
  10. Yazdani, N., Fellow, P.E., Eddy, S. and Chun, S. (2000). Effect of Bearing Pads on Precast Prestressed Concrete Bridges, Journal of Bridge Engineering, ASCE, Vol. 5, No. 3, August, pp. 224-232
  11. Yang, Y.B., Lin. C.L., Yau, J.D., and Chang, D.W. (2004). Mechanism of resonance and cancellation for train-induced vibrations on bridges with elastic bearings, Journal of Sound and Vibration, 269, pp. 345-360
  12. Warburton, G.B. (1976). The Dynamic Behavior of Structures, Oxford: Pergamon