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Experimental Performance of Cold Form Flexural Members Under Distortional Buckling

  • Joshua Schultz
    ,
  • Christopher H. Raebel
    ,
  • Josh R. Buckholt
    ,
  • Daniel H. Raebel
    ,
  • William S. Newhoff
  • Civil Engineering
    ,
  • Milwaukee School of Engineering
    ,
  • CSD Structural Engineers
    ,
  • General Motors
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution

Open access

Abstract

Recent developments for applications of cold formed steel elements that are increasingly slender have precipitated this investigation. The research focuses on the distortional buckling of C-shaped members in flexure, where the flange stiffeners are in compression and the web in tension. Previous research has been documented for this loading scenario for select shapes. However, there remains a lack of definitive experimental data into the behavior of these elements, particularly typical C-shape cross-sections. The initial results of this research suggest that the current distortional buckling strength curve found in the AISI code may not adequately address these cases. This research seeks to work in concert with these efforts to provide theoretical and experimental results that can be used by the task group to develop recommendations for designers. Three cross-sections at a 14, 16,18, 20 gauge for nominal spans of 3.05 m (10 ft) were tested, resulting in an experimental regime of 51 specimens. Experimental results are presented in terms of ultimate loads, Pts, as well as elastic critical distortional buckling moment, Mcrd, and yield moment, My.

Access to documents

Bibliographic Information

Output type

Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution

Original language

American English

Publication milestones

  • Published - 2022

Publication status

Published - 2022

Publisher

Johns Hopkins Libraries

Host publication title

Proceedings and Summary of the 2022 CFSRC Colloquium

Host publication editors

  • B. W. Schafer
  • D. Ayhan