COMPARATIVE STUDY OF PRESTRESSED CONCRETE BEAMS, WITH AND WITHOUT BOND (PART 1)

TESTS WERE MADE OF SEVEN SIMPLE SPAN BEAMS OF 28-FT SPAN, AND OF THREE BEAMS CONTINUOUS OVER TWO SPANS OF 28 FT EACH. THE PRIMARY VARIABLES WERE: THE PRESENCE OR ABSENCE OF BOND; THE AMOUNT OF BONDED UNPRESTRESSED REINFORCEMENT; AND THE USE OF SEVEN WIRE STRAND AS BONDED UNPRESTRESSED REINFORCEMENT. THE UNBONDED POST TENSIONED BEAMS WITH OF BOND; THE AMOUNT OF BONDED UNPRESTRESSED REINFORCEMENT; SERVICEABILITY CHARACTERISTICS, STRENGTH, AND DUCTILITY EQUAL TO, OR BETTER THAN, THOSE OF COMPARABLE BONDED POST- TENSIONED BEAMS. AN EXPRESSION IS PROPOSED FOR THE ULTIMATE STRESS IN UNBONDED TENDONS. SEVEN WIRE STRAND CAN BE USED EFFECTIVELY AS UNPRESTRESSED BONDED REINFORCEMENT. /ACI/

• Supplemental Notes:
  • Vol 68, No 2, PP 116-125, 6 FIG, 2 TAB, 1 PHOT, 10 REF
• Authors:
  • Mattock, A H
  • Yamazaki, J
  • Kattula, B T
• Publication Date: 1971-2

Media Info

• Serial:
  • Am Concrete Inst Journal & Proceedings

Subject/Index Terms

• TRT Terms: Alternatives analysis; Beams; Bonds; Concrete tests; Flexural strength; Material reinforcement; Prestressed concrete; Prestressing; Structural tests; Wire
• Old TRIS Terms: Simple span
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209391
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 1971 12:00AM