NONSLENDER COLUMN LIMITS FOR BRACED AND UNBRACED REINFORCED CONCRETE MEMBERS

This article reports on a study of nonslender column limits for braced and unbraced reinforced concrete members. The study considers compression members that are unbraced against sidesway, with lateral loading and/or between ends; braced against sidesway, with transverse loads between ends; or braced, with end moments. The authors review existing limits and propose new, reliable limits for unbraced, transversely loaded braced, and end-moment loaded braced members. Current ACI limits are found to be very conservative for members with low axial load levels, and they may become very unconservative for members with high axial loads combined with minimum or low reinforcement ratios. The authors stress that the new limits may be used with confidence for a wide range of parameters, they are not unnecessarily conservative, and they allow for normal creep effects.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Supplemental Notes:
  • For this issue of the ACI Structural Journal, the date is January/February 2005.
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Hellesland, J
• Publication Date: 2005-1

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 12-21
• Serial:
  • ACI Structural Journal
  • Volume: 102
  • 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: Axial loads; Columns; Compressive strength; Creep; Design standards; Engineering moments; Nonlinear equations; Reinforced concrete; Structural members
• Uncontrolled Terms: Geometrical slenderness
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00985145
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 31 2005 12:00AM