FATIGUE TESTS AND DESIGN OF WELDED T CONNECTIONS IN THIN COLD-FORMED SQUARE HOLLOW SECTIONS UNDER IN-PLANE BENDING

There has been an increased use of thin-walled (t<4 mm) hollow sections in the manufacture of lighting pole and traffic sign supports, swing ploughs, linkage graders, trailers and haymakers. These structures are subjected to fatigue loading. A review of current fatigue design guidelines showed the lack of design rules for nodal joints made of thin-walled hollow sections. This paper describes tests conducted on welded thin-walled tube-to-tube T connections made up of square hollow sections under cyclic in-plane bending. Different failure modes were obtained from fatigue testing. Experimental stress concentration factors determined in this work were found to be significantly lower than the stress concentration factors from the existing parametric equations of the International Institute of Welding. Three design approaches are proposed for welded T connections in thin cold-formed square hollow sections under cyclic in-plane bending.

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  • 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:
  • Mashiri, F R
  • Zhao, X-L
  • Grundy, P
• Publication Date: 2002-11

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 1413-22
• Serial:
  • Journal of Structural Engineering
  • Volume: 128
  • Issue Number: 11
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Cyclic strength; Failure analysis; Fatigue (Mechanics); Highway engineering; Highway transportation; Lighting columns; Stresses; Structural connection; Structural design; Structural deterioration and defects; Structural engineering; Thin walls; Traffic signs; Welds
• Uncontrolled Terms: T connections
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00934116
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 8 2002 12:00AM