ANALYTICAL STUDY OF PRESTRESSED COMPOSITE BEAMS

The behavior of steel beams prestressed with high-strength steel tendon and compositely connected to a concrete deck is analyzed. The deflection and the strains in the steel beam, concrete deck, and tendons are calculated in the positive and negative bending moment regions over the full range of loading to failure. The composite beam types considered are as follows: conventional composite beam without prestressing tendon; composite beam with tendons anchored at the ends, but not prestressed; and composite beam with tendons prestressed. The load deflection and the load-strain behavior of these beams are compared. The study showed that adding a tendon significantly increases the ultimate load. Prestressing the tendon increases the yield load but not the ultimate load. Prestressing in the negative moment region increases the load at which the concrete cracks.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Saadatmanesh, H
  • Albrecht, P
  • Ayyub, B M
• Publication Date: 1989-9

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 2364-81
• Serial:
  • Journal of Structural Engineering
  • Volume: 115
  • Issue Number: 9
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Beams; Bending moments; Bridge decks; Composite materials; Concrete; Cracking; Deflection; High strength steel; Prestressing; Structural analysis; Structural mechanics; Tendons
• Uncontrolled Terms: Composite beams; Concrete cracking; Structural behavior
• Old TRIS Terms: Prestressed beams
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00488817
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 31 1989 12:00AM