AXIAL COMPRESSION TESTS OF COLD-FORMED ANGLES

This paper presents fixed-ended and pin-ended compression tests on cold-formed, inline galvanized equal angles. Three nominal section sizes were tested ranging from nonslender to slender sections. Detailed measurements of material properties, residual stresses, and geometrical imperfections were conducted. The pin-ended specimens were tested with a minimal eccentricity of L/1,000 applied about the minor axis to cause compression at the tips of the legs. The test data are compared with the Australian and American specifications for cold-formed and hot-rolled steel structures. The section capacities obtained from the stub column tests are found to be 15-40% higher than those calculated according to the specifications. It is concluded that there is no need to include the additional eccentricity specified in the Australian and American cold-formed steel structures standards accounting for the shift of the effective centroid, and that the eccentricity of L/1,000, specified for all section classes, should be applied to slender sections only. These conclusions lead to increases in the design strengths on the order of 25%.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • POPOVIC, D
  • Hancock, G J
  • Rasmussen, KJR
• Publication Date: 1999-5

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: p. 515-523
• Serial:
  • Journal of Structural Engineering
  • Volume: 125
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Axial compression; Cold forming; Columns; Compression tests; Eccentricity; Residual stress; Specifications; Steel structures; Structural members
• Geographic Terms: Australia; United States
• Subject Areas: Bridges and other structures; Design; Highways; Pipelines; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00763690
• Record Type: Publication
• Files: TRIS
• Created Date: May 27 1999 12:00AM