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Nov 21, 2022

Lateral Torsional Buckling Capacity Assessment of Cellular Steel Beams

Author: Wael A. Salah https://orcid.org/0000-0002-4748-0641 [email protected]Author Affiliations
Publication: Practice Periodical on Structural Design and Construction
Volume 28, Issue 1
https://doi.org/10.1061/PPSCFX.SCENG-1210
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Abstract

A cellular beam is a widened I-profile section with circular web openings. This type of perforated-web beam has been used immensely throughout the world during the last two decades. Lateral torsional buckling is one of the steel beam’s limit state designs. This study aims to investigate the behavior of cellular beams against lateral torsional buckling. A validated numerical model was employed in a sort of parametric study. The examined parameters are applied load configurations and the geometrical ratios of flange width-to-thickness, web height-to-thickness, openings’ spacing-to-diameter, beam’s span-to-depth, and opening’s diameter to beam-depth. Based on the results of the parametric study, a lower-bound design formula for predicting the lateral torsional buckling moment resistance of simply supported cellular beams was proposed. The suggested design formula can predict, with an acceptable degree of accuracy, the lateral torsional bending strength of simply supported cellular beams being subjected to various types of destabilizing loads.

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Data Availability Statement

All data are provided in full in the “Parametric Study” section of this paper.

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Information & Authors

Information

Published In

Go to Practice Periodical on Structural Design and Construction
Practice Periodical on Structural Design and Construction
Volume 28 • Issue 1 • February 2023

Copyright

© 2022 American Society of Civil Engineers.

History

Received: May 3, 2022
Accepted: Sep 11, 2022
Published online: Nov 21, 2022
Published in print: Feb 1, 2023
Discussion open until: Apr 21, 2023

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ASCE Technical Topics:

  1. Analysis (by type)
  2. Beams
  3. Buckling
  4. Continuum mechanics
  5. Design (by type)
  6. Dynamics (solid mechanics)
  7. Engineering fundamentals
  8. Engineering mechanics
  9. Forces (type)
  10. Load factors
  11. Mathematics
  12. Models (by type)
  13. Numerical analysis
  14. Numerical models
  15. Parameters (statistics)
  16. Solid mechanics
  17. Statistics
  18. Steel beams
  19. Structural design
  20. Structural dynamics
  21. Structural engineering
  22. Structural members
  23. Structural systems
  24. Torsion
  25. Web beams

Authors

Affiliations

Wael A. Salah https://orcid.org/0000-0002-4748-0641 [email protected]
Faculty of Engineering, Dept. of Civil Engineering, Al Azhar Univ., Cairo, Egypt; Associate Professor, Dept. of Civil Engineering, College of Engineering, Northern Border Univ., Arar 73311, Kingdom of Saudi Arabia. ORCID: https://orcid.org/0000-0002-4748-0641. Email: [email protected]
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