TORSIONAL STRENGTH OF PRESTRESSED CONCRETE BRIDGE GIRDERS

THE TEXAS HIGHWAY DEPARTMENT TYPE B PRESTRESSED CONCRETE BRIDGE GIRDERS WERE TESTED TO DETERMINE THEIR TORSIONAL STRENGTH. APPLIED TORQUE, ANGLE OF TWIST AND STRAINS IN THE CONCRETE WERE DETERMINED. THE THEORETICAL STRENGTH AND TORQUE-ROTATION RELATIONSHIPS WERE CALCULATED BY CLASSICAL ELASTIC THEORY. EXPERIMENTAL AND THEORETICAL TORQUE-ROTATION RELATIONS WERE FOUND TO AGREE VERY CLOSELY. THE THEORETICAL TORSIONAL STRENGTH WAS ON THE AVERAGE ABOUT 75% OF THE EXPERIMENTALLY DETERMINED TORSIONAL STRENGTH. /AUTHOR/

• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701
• Authors:
  • Ruth, E
  • Purr, H L
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Bridges; Elasticity (Mechanics); Girders; Prestressed concrete; Strain (Mechanics); Strength of materials; Torsion
• Old TRIS Terms: Elastic theory; Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208012
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Feb 15 1972 12:00AM