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A 3D beam element to study torsion of steel open sections exposed to fire
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
Univ Trento, Trento, Italy..
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0003-2104-382X
2019 (English)In: Advances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications / [ed] Zingoni, A, CRC Press, 2019, p. 561-565Conference paper, Published paper (Refereed)
Abstract [en]

In the analysis of structures in fire, numerical models must account for the effects of increasing temperatures. Although different finite elements capable of effectively tackling the problem are available, 3D beam elements employed in many commercial software do not properly account for the degradation of the torsional properties with temperature. In this context, an enhanced 3D beam element based on a co-rotational formulation is proposed. The element was specifically developed for steel elements and is well suited for the analysis of structures that exhibit a significant torsional behavior. The Timoshenko beam theory was employed and the steel stress-strain law and thermal expansion were implemented according to EN1993-1-2. Two different case studies are presented in this paper. Numerical analyses by means of two different software (ABAQUS and SAFIR) were performed and compared to the results. The outcomes confirmed the effectiveness of the proposed element.

Place, publisher, year, edition, pages
CRC Press, 2019. p. 561-565
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-266744ISI: 000504648100098ISBN: 978-0-429-42650-6 (print)ISBN: 978-1-138-38696-9 (print)OAI: oai:DiVA.org:kth-266744DiVA, id: diva2:1386303
Conference
7th International Conference on Structural Engineering, Mechanics and Computation (SEMC),Sep 02-04, 2019, Cape Town, South Africa
Note

QC 20200117

Available from: 2020-01-17 Created: 2020-01-17 Last updated: 2020-01-17Bibliographically approved

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Possidente, LucaBattini, Jean-Marc

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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More languages
Output format
  • html
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  • asciidoc
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