JOINT BARS 152 LB F-3 AND 131 LB F-7 WITH VARIOUS RANGES OF UPWARD VERTICAL CAMBER

The purpose of these tests was to determine the effect with respect to service and maintenance labor of joint bars of various camber in heavy tonnage tracks. The test included application of bars with 4 ranges of camber in various joints applied in service at selected locations. Periodical measurements were made of joint deflection, rail end batter and out to out take up of joint bars; records of maintenance work and cracked or broken bars were obtained during a period of more than 3 years service. The best results require rails straight or with an upward sweep at the ends and bars of camber .030" to .060". It is recommended that if and when all mills produce rails with the desired end condition, the specification for joint bars be changed to provide for limits of .030" to .060" vertical camber.

• Corporate Authors:

  Penn Central Transportation Company

  Transportation Center, 6 Penn Center Plaza
  Philadelphia, PA  United States  19104
• Authors:
  • Code, C J
• Publication Date: 1949-5-11

Media Info

• Features: Tables;
• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Deflection; Fastenings; Maintenance of way; Rail joints; Railroad rails; Structural design; Technology; Tie bars; Traffic density
• Geographic Terms: United States
• Old TRIS Terms: Rail deflection; Rail design; Rail end batter
• Subject Areas: Design; Maintenance and Preservation; Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00040338
• Record Type: Publication
• Report/Paper Numbers: Test No. 424
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM