FIELD INVESTIGATION OF TWO TRUSS SPANS ON THE SOUTHERN PACIFIC COMPANY

A.R.E.A. Committee 30 - Impact and Bridge Stresses, has an assignment for the study of stresses in steel trusses. In connection with this assignment, the committee requested the Technical Center to conduct a study on the Devil's River Bridge on the Southern Pacific Company, Texas and Louisiana Lines near Del Rio, Texas in the fall of 1965. This bridge consists of two 300 ft spans and four 400 ft spans. All spans are through trusses of the curved chord, Warren type, with ballasted decks. The purpose of the investigation was the determination of static stress, maximum stress, roll effect and total impact as well as frequency of maximum stress occurrences in various members of a 300 ft span and a 400 ft span, and this report contains a description and analysis of field tests on these spans, except for the frequency data which will appear in a future report. The impact tests were conducted with a test train, but the frequency data was obtained over a one week period with trains in regular service.

Media Info

  • Features: Figures; Tables;
  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00096570
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: ER-82
  • Files: TRIS
  • Created Date: Jul 24 1975 12:00AM