Experimental and analytical studies of cold-formed steel sections with edge-stiffened circular holes subjected to web crippling

Asraf Uzzaman, James B. P. Lim, David Nash, Amir M. Yousefi, Ben Young

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

Cold-formedsteel sections are often used as wall studs or floor joists and such sectionsoften include web holes for ease of installation of services. The holes arenormally punched or bored and are unstiffened; when the holes are near topoints of concentrated load, web crippling can be the critical designconsideration. Recently, a new generation of cold-formed steel channel sectionswith edge-stiffened circular holes has been developed. The web holes arestiffened through a continuous edge stiffener/lip around the perimeter of thehole. In this paper, a combination of experimental investigations andnon-linear finite element analyses are used to investigate the effect of suchedge-stiffened holes under the interior-one-flange (IOF) and end-one-flange (EOF)loading conditions; for comparison, sections without holes and with unstiffenedholes are also be considered. A non-linear finite element models are described,and the results compared against the laboratory test results; a good agreementwas obtained in terms of both strength and failure modes. 

Original languageEnglish
Title of host publicationWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018
Subtitle of host publicationRecent Research and Developments in Cold-Formed Steel Design and Construction
Place of PublicationRolla, MO
Pages163-178
Number of pages16
Publication statusPublished - 7 Nov 2018
EventWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures - St. Louis, United States
Duration: 7 Nov 20188 Nov 2018
http://ccfssonline.org/international-specialty-conference-2/

Conference

ConferenceWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures
CountryUnited States
CitySt. Louis
Period7/11/188/11/18
Internet address

Keywords

  • cold-formed stainless steel
  • finite element analysis
  • lipped channel-section
  • strength reduction factor
  • web crippling
  • EDGE-STIFFENED hole

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    Uzzaman, A., Lim, J. B. P., Nash, D., Yousefi, A. M., & Young, B. (2018). Experimental and analytical studies of cold-formed steel sections with edge-stiffened circular holes subjected to web crippling. In Wei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018: Recent Research and Developments in Cold-Formed Steel Design and Construction (pp. 163-178). https://scholarsmine.mst.edu/isccss/24iccfss/session2/7/