DETAILED ANALYSIS OF THE ULTIMATE FLEXURAL STRENGTH OF AN UNBONDED PRESTRESSED CONCRETE BEAM OF RECTANGULAR SECTION

IN ORDER TO CALCULATE THE MOMENT CARRYING CAPACITY OF AN UNBONDED, SIMPLY SUPPORTED, PRESTRESSED CONCRETE BEAM, IT IS NECESSARY TO DETERMINE THE STATE OF STRESS THROUGHOUT THIS INTERNALLY INDETERMINATE SYSTEM. THE PROBLEM IS COMPLICATED BY NON-LINEAR MATERIAL BEHAVIOR AND VARIATION IN THE CROSS SECTION WITH MOMENT DUE TO CRACKING OF THE TENSION ZONE. A SOLUTION TO THIS PROBLEM IS PRESENTED FOR THE CASE OF A BEAM WITH RECTANGULAR CROSS SECTION SUBJECTED TO A UNIFORMLY DISTRIBUTED LOAD. THE APPLICABILITY OF THE SOLUTION IS DEMONSTRATED BY COMPARISON WITH TEST RESULTS. /TRRL/

• Corporate Authors:

  International Association for Bridge and Structural Engineering

  ETH-Honggerberg, Wolfgang-Pauli-Strasse 15
  Zurich 8093,   Switzerland  CH-8093
• Authors:
  • Plaehn, J
• Publication Date: 1970

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 153-68
• Serial:
  • Publication of: Kajima Inst Constr Tech /Japan/
  • Issue Number: 30
  • Publisher: Kajima Inst Constr Tech /Japan

Subject/Index Terms

• TRT Terms: Beams; Cross sections; Fracture mechanics; Loads; Prestressed concrete; Prestressing; Statically indeterminate frames; Strength of materials; Stresses
• Old TRIS Terms: Statically indeterminate structure
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00210144
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: May 21 1973 12:00AM