Behavior of High-Performance Steel as Shear Reinforcement for Concrete Beams

High performance (HP) steel is characterized by enhanced corrosion resistance and higher strength in comparison to ASTM A615-06 Grade 60 steel, which may reduce the amount of required reinforcement. This paper investigates the behavior of HP steel as shear reinforcement for concrete beams, especially under overload condition with the steel being at high stress levels. Nine reinforced concrete beams were constructed using No. 9 longitudinal bars and No. 3 stirrup bars. The main variables considered in this study are the stirrup spacing and type of reinforcing steel material. Test results indicate that using HP steel reinforcement increases the shear capacity and enhances the serviceability in terms of strength gain and reduction of shear crack width. Current design codes can conservatively be used for the design of HP steel using a yield strength of 80 ksi (552 MPa). The maximum shear resistance of a concrete section recommended by the ACI Code should be maintained for HP steel reinforcement. This research could not fully use the strength of the HP steel stirrup because the failure was controlled by crushing of the concrete in the strut, suggesting that the HP steel should be paired with high-strength concrete for best results.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Sumpter, Matthew S
  • Rizkalla, Sami H
  • Zia, Paul
• Publication Date: 2009-3

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 171-177
• Serial:
  • ACI Structural Journal
  • Volume: 106
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Building codes; Reinforcing steel; Shear reinforcement; Shear strength; Shear tests
• Uncontrolled Terms: High performance steel
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I20: Design and Planning of Transport Infrastructure; I34: Steels and Metals;

Filing Info

• Accession Number: 01128996
• Record Type: Publication
• Files: TRIS
• Created Date: May 20 2009 8:17AM