Shear Behavior of Macro-Synthetic Fiber-Reinforced Concrete Beams Without Stirrups

In order to determine the effect that a newly developed high-modulus macrosynthetic fiber had on longitudinally reinforced concrete (RC) beams without stirrups' failure behavior and shear strength, there was instrumentation and testing of 27 large-scale beams under monotonic centerpoint loading. There was testing of slender and short beams with respective 3.5 and 2.3 shear span-depth ratios (a/d). Macrosynthetic fibers were added at 0.50, 0.75, and 1.0% volume fractions, and beam length varied from 1.9 and 3.2 m (75 and 126 in.). Beam deflection, concrete and flexural reinforcing bar strain, and cracking patterns were monitored at different monotonic loading stages during testing until failure. That macrosynthetic fibers addition significantly improved RC beam shear strength and ductility and modified racking and failure behavior was shown in results. Compared to the control RC beam, slender and short beam ultimate shear strength was increased up to 30%.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Authors:
  • Altoubat, Salah
  • Yazdanbakhsh, Ardavan
  • Rieder, Klaus-Alexander
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 381-389
• Serial:
  • ACI Materials Journal
  • Volume: 106
  • Issue Number: 4
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Failure; Shear strength; Stirrups; Synthetic fibers
• Uncontrolled Terms: Reinforced concrete beams; Shear behavior
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01137433
• Record Type: Publication
• Report/Paper Numbers: 106-M44
• Files: TRIS
• Created Date: Jul 30 2009 1:48PM