RECTANGULAR PRESTRESSED BEAMS IN TORSION AND BENDING

An interaction criterion for prestressed concrete beams under torsion and bending is presented. Test results for 42 rectangular specimens included properties of beams, their ultimate strengths, crack patterns, and torque-twist and bending-deflection curves. Substantial reduction in torsional stiffness due to torsional cracks was observed; however, the effect on bending stiffness is relatively small. Beams with stirrups and longitudinal steel have ample rotation capacity at failure. Having established three modes of failure by experimental observations for varying bending to torque ratios, a generalized skew bending theory is developed to evaluate cracking and ultimate torques.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Gangarao, H V
  • Zia, P
• Publication Date: 1973-1

Media Info

• Pagination: p. 183-198
• Serial:
  • Journal of the Structural Division
  • Volume: 99
  • Issue Number: ST1
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Bridges; Concrete bridges; Prestressed concrete; Prestressed concrete bridges; Prestressing
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 00044318
• Record Type: Publication
• Report/Paper Numbers: Paper 9501 Proceeding
• Files: TRIS
• Created Date: Jun 1 1973 12:00AM