SCREWED CONNECTION TESTS OF THIN G550 AND G300 SHEET STEELS

Cold-formed structural members are fabricated from sheet steels that must meet the various material requirements prescribed in applicable national design standards. These requirements ensure that stress concentrations can be redistributed and that members and connections can undergo a minimum amount of displacement without a loss in structural performance. The 1996 Standards Australia/Standards New Zealand (AS/NZS) 4600, and Canadian Standards Association (CAS)-S136 and American Iron and Steel Institute (AISI) cold-formed steel design standards allow for the use of thin (t<0.9 mm in AS/NZS 4600), high-strength (f sub y=550 MPa) sheet steels if the yield stress and ultimate strength are reduced to 75% of their minimum specified values. This paper provides a summary of results detailing the behavior of thin G550 and G300 sheet steel single overlap, screwed connections. The accuracy of the AS/NZS 4600, CSA-S136, and AISI design standards diminishes when they are used to estimate the bearing resistance of screwed connections that are loaded in shear. Hence, it is necessary to reduce the bearing coefficient that is used for screwed connections to limit the unconservative nature of these design standards. A proposed design formulation that can be used to more accurately predict the resistance of screwed connections that fail in the combined bearing/tilting mode is presented.

• 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:
  • Rogers, C A
  • Hancock, G J
• Publication Date: 1999-2

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 128-136
• Serial:
  • Journal of Structural Engineering
  • Volume: 125
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Bearing capacity; Cold forming; Design standards; Failure; Screws; Steel sheets; Structural members; Ultimate strength; Yield stress
• Geographic Terms: Australia; Canada; New Zealand; United States
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00760923
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 12 1999 12:00AM