Ultimate bearing shear strength of cold-formed steel members using bolted connections at elevated temperatures

James B.P. Lim, Ben Young, Ran Feng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The external columns of frames are usually protected against fire, the design requirement being, after failure of the joints or beams, that the columns must remain upright to prevent spread of fire to an adjacent building or compartment. To prevent collapse of the columns, the bolt-group must be designed to have sufficient shear strength to resist the tensile forces that result from the ensuing catenary action. Whilst experimental investigations at ambient temperature into the ultimate shear strength of cold-formed steel members using bolted connections have been described in the literature, no consideration has been given to the behaviour of such connections at elevated temperatures. This paper describes non-linear elasto-plastic finite element parametric studies into the effects of elevated temperatures on the shear strength bolted connections between cold-formed steel members. The numerical results illustrate how the shear strength of the bolt-holes is affected by elevated temperatures, from which design recommendations for the bearing shear strength of the bolt-hole at elevated temperatures are proposed.

Original languageEnglish
Title of host publication5th International Conference on Advances in Steel Structures, ICASS 2007
Pages702-709
Number of pages8
Publication statusPublished - 1 Dec 2007
Externally publishedYes
Event5th International Conference on Advances in Steel Structures, ICASS 2007 - Singapore, Singapore
Duration: 5 Dec 20077 Dec 2007

Publication series

Name5th International Conference on Advances in Steel Structures, ICASS 2007
Volume3

Conference

Conference5th International Conference on Advances in Steel Structures, ICASS 2007
Country/TerritorySingapore
CitySingapore
Period5/12/077/12/07

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Metals and Alloys

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