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Cross-section resistance and design of stainless steel CHS and EHS at elevated temperatures
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Quan, Chunyan and Kucukler, Merih (2023) Cross-section resistance and design of stainless steel CHS and EHS at elevated temperatures. Engineering Structures, 285 . 115996. doi:10.1016/j.engstruct.2023.115996 ISSN 0141-0296.
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Official URL: https://doi.org/10.1016/j.engstruct.2023.115996
Abstract
The structural behaviour and design of stainless steel circular hollow sections (CHS) and elliptical hollow sections (EHS) at elevated temperatures are investigated in this paper. Shell finite element models of stainless steel CHS and EHS are created and validated against experimental results from the literature, which are subsequently used to generate benchmark structural performance data. Parametric studies are performed on a large number of cold-formed and hot-rolled austenitic, duplex and ferritic stainless steel CHS and EHS subjected to (i) pure axial compression, (ii) pure bending, (iii) combined axial compression and bending and (iv) combined bending and shear at elevated temperatures; the studied cases comprise 24,495 stainless steel CHS and EHS in fire and cover a wide range of cross-section slendernesses and elevated temperature levels. Calibrated against the benchmark structural performance data obtained from the numerical parametric studies, new design proposals for predicting the cross-section resistances of stainless steel CHS and EHS in fire are put forward. The accuracy, safety and reliability of the new design proposals are assessed. It is shown that in comparison to the design provisions of the European structural steel fire design standard EN 1993-1-2, the proposed design methods provide more accurate and safe-sided cross-section resistance predictions for stainless steel CHS and EHS at elevated temperatures.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||
Library of Congress Subject Headings (LCSH): | Stainless steel, Stainless steel -- Thermal properties, Structural analysis (Engineering) | |||||||||
Journal or Publication Title: | Engineering Structures | |||||||||
Publisher: | Elsevier Science Ltd. | |||||||||
ISSN: | 0141-0296 | |||||||||
Official Date: | 15 June 2023 | |||||||||
Dates: |
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Volume: | 285 | |||||||||
Article Number: | 115996 | |||||||||
DOI: | 10.1016/j.engstruct.2023.115996 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 9 August 2023 | |||||||||
Date of first compliant Open Access: | 9 August 2023 | |||||||||
RIOXX Funder/Project Grant: |
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