DYNAMIC RESPONSE OF A SINGLE TRACK RAILWAY TRUSS BRIDGE

A lumped mass model of a railway truss bridge is developed. The model considers only the vertical degree of freedom of each truss joint. The vehicle system is idealized as a three degree of freedom model consisting of the carbody and wheel-axle sets. Dynamic interaction equations for the bridge-vehicle system are derived and solved using the numerical integration method. Impact factors for member forces and nodal deflections are generated under the action of a single or a series of three moving vehicles. Finally, a limited parametric study is performed to determine the influence of vehicle speed, vehicle suspension characteristics and sprung mass on impact factors. /Author/

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 73-80
  • Monograph Title: Bridge Engineering. Volume 2
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00183782
  • Record Type: Publication
  • ISBN: 0309026970
  • Files: TRIS, TRB
  • Created Date: Dec 12 1978 12:00AM