Web-post buckling resistance calculation of perforated high-strength steel beams with elliptically-based web openings for EC3
Journal article
Ferreira, F., Shamass, R., Santos, L., Tsavdaridis, K. and Limbachiya, V. (2023). Web-post buckling resistance calculation of perforated high-strength steel beams with elliptically-based web openings for EC3. Structures. https://doi.org/10.1016/j.istruc.2023.05.139
Authors | Ferreira, F., Shamass, R., Santos, L., Tsavdaridis, K. and Limbachiya, V. |
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Abstract | There has been an increase in the use of high-strength steel in several countries, as they provide design lightweight structural members by satisfying environmental and economic issues. This paper aims to implement high-strength steels in the web-post buckling resistance equation, which was based on the truss model according to EUROCODE 3, presented previously by the authors. For this task, a finite element model is developed by geometrically and materially nonlinear analysis with imperfections included. A parametric study is carried out, considering the key geometric parameters that influence the web-post buckling resistance. Three high-strength steel grades are studied (S460, S690 and S960) and in total, 13,500 finite element models are processed. A new factor for adapting high-strength steels to the equation proposed previously was presented. The finite element results agree well with the new proposal. The statistical parameters calculated, via the ratio between the numerical and analytical models, considering the regression, mean, standard deviation and variance, were 0.9817, 0.986, 8.32% and 0.69%, respectively. In conclusion, a reliability analysis was presented based on Annex D EN 1990 (2002). |
Keywords | High-strength steel; Elliptically-based web openings; Finite element method; Web-post buckling; Reliability analysis. |
Year | 2023 |
Journal | Structures |
Publisher | Elsevier |
ISSN | 2352-0124 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.istruc.2023.05.139 |
Web address (URL) | https://doi.org/10.1016/j.istruc.2023.05.139 |
Publication dates | |
Online | 15 Jun 2023 |
Publication process dates | |
Accepted | 30 May 2023 |
Deposited | 21 Jun 2023 |
Accepted author manuscript | License File Access Level Open |
https://openresearch.lsbu.ac.uk/item/9440v
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Accepted author manuscript
Web-post buckling resistance for perforated high-strength steel beams with elliptically-based web openings.docx | ||
License: CC BY-NC-ND 4.0 | ||
File access level: Open |
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