Steel and Composite Structures

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Buckling behavior of bundled inclined columns: Experimental study and design code verification

  • Moussa Leblouba (Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah) ;
  • Samer Barakat (Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah) ;
  • Raghad Awad (Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah) ;
  • Saif Uddin Al-Khaled (Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah) ;
  • Abdulrahman Metawa (Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah) ;
  • Abdul Saboor Karzad (Department of Civil Engineering, Faculty of Engineering, University of Ottawa)
  • Received : 2024.03.28
  • Accepted : 2024.07.03
  • Published : 2024.07.25
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Abstract

Not all structural columns maintain a vertical orientation. Several contemporary building structures have inclined columns, introducing distinct challenges, particularly in buckling behavior. This study examines the buckling behavior of inclined, thin-walled steel bundled columns, differing from typical vertical columns. Using specimens with three tubes welded to plates linearly aligned at the top and triangularly at the bottom, tests indicated that buckling capacity increases with tube wall thickness and diameter but decreases with column height. Inclined tubes in bundled columns showed improved buckling resistance over vertical ones. Results were verified against standard steel design guidelines to assess their predictive accuracy.

Keywords

Acknowledgement

This research was supported by the College of Graduate Studies and the SCMASS Research Group at the University of Sharjah. The authors are grateful for this support.

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