Shear Strength of Steel Fiber-Reinforced Concrete Beams without Web Reinforcement

In fiber reinforced concrete (FRC) beams, because post-cracking tensile strength is developed by the fibers, the applied shear force is resisted by both the compression zone and tension zone of intact concrete. This study uses a theoretical approach to predict the shear strength of slender steel FRC beams without web reinforcement. The shear capacity of the compression zone was defined addressing the interaction with the normal stress developed by the flexural moment in the cross section. The shear capacity of the tension zone was defined addressing the post-cracking tensile strength of FRC. Because the magnitude and distribution of the normal stresses vary according to the flexural deformation of the beam, the shear capacity of the beam was defined as a function of the flexural deformation of the beam. The shear strength of the beam was determined at the intersection between the shear capacity and shear demand curves. Comparisons with existing experimental test results were used to verify the proposed strength model. A simplified strength model was also developed for design practice.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Choi, Kyoung-Kyu
  • Park, Hong-Gun
  • Wight, James K
• Publication Date: 2007-1

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 12-21
• Serial:
  • ACI Structural Journal
  • Volume: 104
  • Issue Number: 1
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Compression; Cracking; Fiber reinforced concrete; Flexural strength; Shear properties; Shear reinforcement; Shear strength; Steel fibers; Stresses; Tensile strength; Tension; Theoretical studies
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; I20: Design and Planning of Transport Infrastructure; I32: Concrete; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 01044690
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 2007 6:59AM