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Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour

Fatimah De’nan (School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia)
Nor Salwani Hashim (School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia)
Xing Yong Sua (School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia)
Pui Yee Lock (School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 16 July 2021

Issue publication date: 5 December 2022

58

Abstract

Purpose

Due to economic development, tapered members are commonly applied in steel frames, namely, industrial halls, warehouses, exhibition centres, etc. In the design of cantilever steel beam structures in cities building design, tapering is introduced at the web profile to achieve utmost economy and suit the bending moment distributions. The cross-sectional shape of the beam is varied linearly to the moment gradient to achieve the target of higher efficiency with lower cost.

Design/methodology/approach

The shear deformation pattern and efficiency of the tapered steel section with perforation were investigated using finite element analysis. In addition, I-beam with web opening is studied numerically via LUSAS software for different parameters of tapering ratio, perforation shape and perforation size and perforation layout.

Findings

The highest contributing parameters for the highest shear buckling capacity and efficiency of the section were due to the small opening size and tapering ratio. Whilst the variation of perforation layout and spacing give a major effect on the shear strength and efficiency of the tapered steel section with perforation. Besides that, the highest efficiency model is found when the section is designed with 0.4 D diamond perforation in Layout 3 under a tapering ratio of 0.3. The critical shear buckling load and efficiency is reduced 14.39% and 13.91%, respectively, when perforations are added onto the tapered steel sections.

Originality/value

The tapered steel section with perforation has lower critical shear buckling load and efficiency compared to the tapered section without perforation but obtains a higher critical shear buckling load and efficiency compared to the uniform section without perforation.

Keywords

Acknowledgements

The authors gratefully recognise the financial support by the Fundamental Research Grant Scheme under grant [203/PAWAM/6071239] provided by the Universiti Sains Malaysia (USM) during the course of this work.

Citation

De’nan, F., Hashim, N.S., Sua, X.Y. and Lock, P.Y. (2022), "Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour", World Journal of Engineering, Vol. 19 No. 6, pp. 777-787. https://doi.org/10.1108/WJE-11-2020-0571

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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