EFFECTS OF REINFORCEMENTS ON DUCTILITY OF CONCRETE

THE REINFORCING ACTION OF STIRRUPS, RANDOMLY DISTRIBUTED SHORT FIBERS, AND COMPRESSION REINFORCEMENT IN IMPROVING DUCTILITY OF PLAIN CONCRETE, OVER-REINFORCED AND UNDER-REINFORCED BEAMS AND PRISMS WERE TESTED IN CONTINUOUSLY INCREASING AS WELL AS CYCLIC LOADING. REINFORCEMENT APPEARS TO INCREASE DUCTILITY PRIMARILY BY RETARDING GROWTH OF LONGITUDINAL MICROCRACKS. AS A RESULT, ALTHOUGH OVERALL DUCTILITY OF OVER-REINFORCED BEAMS WAS IMPROVED BY THE ADDITION OF COMPRESSION STEEL, ITS PRESENCE DID NOT SIGNIFICANTLY INFLUENCE THE BEHAVIOR OF CONCRETE IN THE COMPRESSION ZONE. STIRRUPS AND FIBERS SUBSTANTIALLY IMPROVED THE DUCTILITY OF CONCRETE AS EVIDENCED BY THE INCREASED ULTIMATE COMPRESSIVE CONCRETE STRAINS AND TOUGHNESS. SPACING OF REINFORCEMENT APPEARS TO HAVE A SMALL INFLUENCE ON CRACKING AND ON DUCTILITY FOR A SPACING LESS THAN ABOUT ONE INCH. ONLY SMALL SIZE BEAMS AND PRISMS WERE TESTED IN THIS INVESTIGATION. /AUTHOR/

• Supplemental Notes:
  • Vol 96, No STR6, PROC PAPER 7366, PP 1167-1184
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Shah, S P
  • Rangan, B V
• Publication Date: 1970-6

Media Info

• Serial:
  • Journal of the Structural Division
  • Volume: 96
  • Issue Number: ST6
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Concrete; Concrete tests; Cracking; Ductility; Flexural strength; Loads; Material reinforcement; Reinforced concrete; Spacing; Stirrups; Structural tests
• Uncontrolled Terms: Concrete beams; Concrete cracking; Loading
• Old TRIS Terms: Cycles
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209230
• Record Type: Publication
• Report/Paper Numbers: No. 7360 Proceeding
• Files: TRIS
• Created Date: Jul 27 1970 12:00AM