FATIGUE TESTS OF BRIDGE MATERIALS OF THE AASHO ROAD TEST

ANALYSES OF THE BEHAVIOR UNDER REPEATED APPLICATIONS OF OVERSTRESS OF THE TEST BRIDGES AT THE AASHO ROAD TEST REQUIRED KNOWLEDGE OF THE FATIGUE PROPERTIES OF REINFORCING BARS, PRESTRESSING WIRE AND STRAND, AND OF STEEL BEAMS WITH PARTIAL-LENGTH COVER PLATES. STUDIES AIMED TO DEVELOP SUCH KNOWLEDGE ARE REPORTED IN THIS PAPER. INCLUDED ARE FATIGUE TESTS OF 20 SPECIMENS OF NO. 11 REINFORCING BARS, 18 SPECIMENS OF PRESTRESSING STRAND, AND 50 SPECIMENS OF PRESTRESSING WIRE. IN ADDITION, TESTS OF 10 BEAMS WITH PARTIAL-LENGTH COVER PLATES REPORTED BY OTHER INVESTIGATORS ARE UTILIZED IN THE STUDY. THE TEST DATA ARE DESCRIBED BY MATHEMATICAL EQUATIONS WHICH EXPRESS THE FATIGUE LIFE AS A FUNCTION OF THE STRESS RANGE AND MINIMUM STRESS. NUMERICAL COEFFICIENTS IN THE EQUATIONS WERE EVALUATED BY REGRESSION ANALYSES. /AUTHOR/

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/sr/sr66/SR66-007.pdf
• Supplemental Notes:
  • pp 132-147, 9 FIG, 9 TAB, 5 PHOT, 3 REF Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Corporate Authors:

  Highway Research Board

  Washington, DC   
• Authors:
  • Fisher, J W
  • Viest, I M
• Conference:
  • 40th Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1961-1-9 to 1961-1-13
• Publication Date: 1961

Media Info

• Monograph Title: AASHO road test; technical staff papers
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 66
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Beams; Bridges; Fatigue tests; Material reinforcement; Materials; Mathematical analysis; Prestressing; Regression analysis; Steel; Structural analysis
• Identifier Terms: AASHO Road Test
• Old TRIS Terms: Overstressed zones
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Materials;

Filing Info

• Accession Number: 00209068
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Sep 29 1994 12:00AM