MEASUREMENT UNDER TRAFFIC OF THE DYNAMIC RAIL CREEPAGE FORCES EXERTED ON TIES BY RAIL ANCHORS AND THE STATIC LOAD REQUIRED TO MOVE TIES IN THE BALLAST, NEAR KANSASVILLE, WIS., ON THE MILWAUKEE ROAD

This report presents the results of a field test which involved the measurement, under two-way traffic, of the dynamic forces exerted by rail anchors on the ties, of rail and tie movement, and also of the resistance of ties to movement in the ballast by static loads. The primary maximum forward forces recorded on the weigh bars occurred ahead of each wheel before it reached the rail anchors. The rail creepage forces caused by rolling out the convex upward wave ahead of each wheel were present, but were masked out by those caused by the angular changes of the rail. The greatest forces on the weigh bars occurred under the winter measurements when the ties were partially frozen in the ballast. No very large forces were measured under the braking and accelerating movements made by the way freight trains. The magnitude of the dynamic forces was not a function of the train speed.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Authors:
  • Hiltz, J P
  • Adams, L L
  • Barge Jr, D B
• Publication Date: 1955

Media Info

• Features: Figures; Tables;
• Pagination: p. 283-322
• Serial:
  • AREA BULLETIN
  • Volume: 56
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Ballast (Railroads); Braking; Creep; Dynamic loads; Equipment tests; Fastenings; Field tests; Railroad rails; Railroad ties; Railroad tracks; Technology; Velocity
• Uncontrolled Terms: Ballast
• Geographic Terms: United States
• Old TRIS Terms: Rail creep; Test equipment
• Subject Areas: Geotechnology; Railroads;

Filing Info

• Accession Number: 00039447
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM