LIMIT SPANS OF COMPOSITE PRESTRESSED CONCRETE GIRDERS

GRANICNI RASPONI SPREGNUTIH PREDNAPETIH BETONSKIH NOSACA

The article presents a method for determining the limit span in three possible cases; 1) girder with a single cross section, 2) composite girder prestressed in a single phase and 3) composite girder prestressed in two phases. The example of a girder with a single cross section shows that the limit span based on the Guyon's limit span equals the one obtained in the condition of permissible stresses used for the formulation of an algorithm for the limit span of composite girders. The method is also used in the case of partial prestressing underlying its possible application. Finally, the method is explained on a numerical example and the accuracy of the derived expression is proved by marginal stresses in all three cases. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/04116380
• Corporate Authors:

  Druste za Ceste Hrvatske

  U1 Janka Rukuse 1
  Zagreb, Croatia,   Yugoslavia 
• Authors:
  • MARIC, Z
• Publication Date: 1988

Language

• Croatian

Media Info

• Features: References;
• Pagination: p. 53-65
• Serial:
  • CESTE I MOSTOVI
  • Volume: 34
  • Issue Number: 2
  • Publisher: HRVATSKO DRUSTVO ZA CESTE
  • ISSN: 0411-6380

Subject/Index Terms

• TRT Terms: Beams; Bridge members; Composite materials; Cross sections; Length; Mathematical models; Methodology; Prestressed concrete; Prestressing; Stresses; Ultimate load design
• Uncontrolled Terms: Bridge spans; Use
• ITRD Terms: 3472: Beam; 9005: Composite; 6404: Cross section; 6452: Limit; 6473: Mathematical model; 9102: Method; 4796: Prestressed concrete; 4777: Prestressing; 3452: Span; 5575: Stress (in material); 9084: Use
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00493334
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 30 1990 12:00AM