INFLUENCE OF NONPRESTRESSED REINFORCEMENT ON THE STRENGTH OF UNBONDED PARTIALLY PRESTRESSED CONCRETE MEMBERS

An ivestigation of the stress in the prestresing tendons at ultimate in unbonded partially prestressed concrete beams is described with particular emphasis on the effects of nonprestressed bonded reinforcement. Load tests on 6 rectangular section unbonded beams are reported. It is shown that the presence of bonded nonprestressed reinforcement has a marked influence on the flexural behavior of unbonded beams and the related increase of stress in the prestressed steel at ultimate. Test results are compared with predictions from 2 relevant design codes, and some limitations in the application of these codes to unbonded partially prestressed concrete construction are identified.

• Availability:
  • Find a library where document is available. Order URL: http://www.aci-int.org/PUBS/JOURNALS/AbstractDetails.asp?srchtype=phrase&date=anytime&searchmonth=10&searchday=0&searchyear=1991&publication=Structural+Journal&volume=88&issue=5&title=ANCHORAGE+LENGTHS+FOR+STRAIGHT+BARS+IN+TENSION&ID=2724
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Campbell, T I
  • Chouinard, K L
• Publication Date: 1991-10

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 546-551
• Serial:
  • ACI Structural Journal
  • Volume: 88
  • Issue Number: 5
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Building codes; Load tests; Material reinforcement; Prestressed concrete; Prestressing; Reinforced concrete; Structural design; Tendons
• Uncontrolled Terms: Partial prestressing; Reinforced concrete beams
• Subject Areas: Bridges and other structures; Highways; Law; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00615194
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 30 1991 12:00AM