Structural parameters analysis for tapered steel section with perforation: effect of shear buckling behaviour
| Autor: | Fatimah De’nan, Xing Yong Sua, Pui Yee Lock, Nor Salwani Hashim |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Perforation (oil well) 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Structural engineering Geotechnical Engineering and Engineering Geology Finite element method 0201 civil engineering Shear buckling Mechanics of Materials Section (archaeology) 021105 building & construction Electrical and Electronic Engineering business Civil and Structural Engineering |
| Zdroj: | World Journal of Engineering. 19:777-787 |
| ISSN: | 1708-5284 |
| DOI: | 10.1108/wje-11-2020-0571 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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