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Modelling and design of stainless steel hollow section beam-column members in fire

Modelling and design of stainless steel hollow section beam-column members in fire
Modelling and design of stainless steel hollow section beam-column members in fire
This paper presents the results of a comprehensive numerical modelling study on the performance and design of stainless steel square, rectangular and circular hollow section beam-column members subjected to axial compressive load and uniform bending moment at elevated temperatures. The numerical results generated have been used to assess the level of safety and predictive accuracy of the combined axial compressive load and bending moment resistances of hollow section stainless steel beam-column members determined from EN 1993-1-2 fire design rules. New design recommendations, which include: (1) new elevated temperature flexural buckling formulation for SHS, RHS and CHS stainless steel columns to obtain accurate predictions of the pure compression capacity and (2) new combined loading interaction factors for the combined axial load and bending moment interaction equations, are proposed. The higher accuracy and improved reliability of the proposals for predicting the load-carrying capacity of stainless steel SHS, RHS and CHS beam-column members in fire is demonstrated through numerical comparisons and reliability assessments.
Beam-column, Elevated temperature, Fire design, Numerical analysis/modeling, Reliabilty, Stainless steel, Reliability, Numerical modelling
1598-2351
120-138
Mohammed, A.
88fd220f-aef8-43f7-acdb-02b8eb6f800e
Afshan, S.
68dcdcac-c2aa-4c09-951c-da4992e72086
Mohammed, A.
88fd220f-aef8-43f7-acdb-02b8eb6f800e
Afshan, S.
68dcdcac-c2aa-4c09-951c-da4992e72086

Mohammed, A. and Afshan, S. (2023) Modelling and design of stainless steel hollow section beam-column members in fire. International Journal of Steel Structures, 23 (1), 120-138. (doi:10.1007/s13296-022-00683-2).

Record type: Article

Abstract

This paper presents the results of a comprehensive numerical modelling study on the performance and design of stainless steel square, rectangular and circular hollow section beam-column members subjected to axial compressive load and uniform bending moment at elevated temperatures. The numerical results generated have been used to assess the level of safety and predictive accuracy of the combined axial compressive load and bending moment resistances of hollow section stainless steel beam-column members determined from EN 1993-1-2 fire design rules. New design recommendations, which include: (1) new elevated temperature flexural buckling formulation for SHS, RHS and CHS stainless steel columns to obtain accurate predictions of the pure compression capacity and (2) new combined loading interaction factors for the combined axial load and bending moment interaction equations, are proposed. The higher accuracy and improved reliability of the proposals for predicting the load-carrying capacity of stainless steel SHS, RHS and CHS beam-column members in fire is demonstrated through numerical comparisons and reliability assessments.

Text
Mohammed_Afshan_2022_International Journal of Steel Structures_Author version - Accepted Manuscript
Restricted to Repository staff only until 27 October 2023.
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More information

Accepted/In Press date: 3 October 2022
e-pub ahead of print date: 28 October 2022
Published date: 1 February 2023
Additional Information: Publisher Copyright: © 2022, Korean Society of Steel Construction.
Keywords: Beam-column, Elevated temperature, Fire design, Numerical analysis/modeling, Reliabilty, Stainless steel, Reliability, Numerical modelling

Identifiers

Local EPrints ID: 474949
URI: http://eprints.soton.ac.uk/id/eprint/474949
ISSN: 1598-2351
PURE UUID: 2361f566-f795-49f1-9a26-44085b0ea0b7
ORCID for S. Afshan: ORCID iD orcid.org/0000-0003-1048-2931

Catalogue record

Date deposited: 07 Mar 2023 17:42
Last modified: 16 Sep 2023 01:56

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Contributors

Author: A. Mohammed
Author: S. Afshan ORCID iD

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