FATIGUE BEHAVIOR OF PRETENSIONED CONCRETE GIRDERS

This report summarizes the fatigue testing of full scale precast pretensioned girderswith unshored cast-in-place slabs. It includes an extensive literature review of prestressed concrete fatigue and development of design specifications relating to fatigue of prestressed concrete. Detailed summaries are given of the fatigue and ultimate behavior of a series of full scale test specimens including static and dynamic loads, deflections, stresses, and crack measurements. The main variables included maximum nominal concrete tensile stress level; girder strand stress ranges; cross sections (both Texas Type C and AAAHTO Type II girders); strand patterns (both straight and draped); passive reinforcement; degree of precracking; presence of occasional overloading; and prestressing losses. A nonlinear program was used in the analysis of experimental results to determine the effective prestressing extent of prestress losses, and the effective strand stress ranges. Comparisons were made to other reported test results and to recommended and existing fatigue design procedures. The report synthesizes this information and presents design recommendations suitable for inclusion within the general AASHTO fatigue design framework. (Author) design framework. (Author)

• Record URL:
  • https://library.ctr.utexas.edu/digitized/texasarchive/phase2/300-2F.pdf
• Corporate Authors:

  University of Texas, Austin

  Center for Transportation Research, 3208 Red River Street
  Austin, TX  United States  78705

  Texas State Department of Highways & Public Transportation

  Transportation Planning Division, P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Overman, T R
  • Breen, J E
  • Frank, K H
• Publication Date: 1984-11

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 382 p.

Subject/Index Terms

• TRT Terms: Beams; Concrete; Cracking; Deflection; Design; Dynamic loads; Mechanical fatigue; Prestressed concrete; Prestressing; Static loads; Stresses; Tension
• Uncontrolled Terms: Concrete cracking; Prestress loss; Tensile stress
• Old TRIS Terms: Design information; Static loading
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00450590
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-85/39+300-2F, Res Rpt. 300-2F
• Contract Numbers: Res Study 3-5-80-300
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 27 2004 9:01PM