FATIGUE PERFORMANCE EVALUATION OF DOUBLE-ANGLE RAILWAY CONNECTIONS: A PROGRESS REPORT

This paper describes the status of experimental and analytical studies to evaluate the fatigue strength of double-angle shear connections of railway bridges. Double-angle shear connections are commonly used in railway bridges to connect the longitudinal members to the transverse members (e.g., stringers to floor beams). These connections were always assumed to be transferring only shear force, but in reality, some bending moment is also transferred to the adjacent members through these connections. The Union Pacific Railroad has reported some fatigue problems with the double-angle connections due to the subjection of these connections to a large number of substantial cyclic loads. These problems have occurred by the initiation of cracks in the stringer or the floor beam and sometimes by cracking of the fasteners (rivets or bolts) in the connection. To evaluate the problem, a series of experimental and analytical studies is in progress at the University of Nevada, Reno.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 231-255

Subject/Index Terms

Filing Info

  • Accession Number: 00725724
  • Record Type: Publication
  • ISBN: 8487867790
  • Files: TRIS
  • Created Date: Sep 10 1996 12:00AM