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Elevated temperature material behaviour of high-strength steel

Elevated temperature material behaviour of high-strength steel
Elevated temperature material behaviour of high-strength steel

This paper presents an experimental investigation into the behaviour of high-strength steel (HSS) structures (i.e. yield strength between 460 and 700 N/mm2) in fire conditions. The paper proceeds with a description of the experimental programme that includes two different grades of HSS with the aim of assessing (a) the mechanical properties at elevated temperature through tensile testing and (b) the effect of chemical composition and processing route on the microstructure through a detailed metallurgical investigation. The investigation takes a holistic view of the analysis whereby the effect of processing route and composition on the microstructure and hence mechanical properties are assessed. In this paper, following a detailed description of the tests under isothermal conditions, the results are analysed to determine strength and stiffness reduction factors at elevated temperatures and these values are compared with the literature and design standards.

Fire engineering, Steel structures, Strength & testing of materials
0965-0911
777-787
Winful, Dorothy A.
fc3c433e-34ef-402f-a036-f5184b213fa6
Cashell, Katherine A.
99ac6797-700d-4119-bffc-b6557586bd50
Afshan, Sheida
68dcdcac-c2aa-4c09-951c-da4992e72086
Barnes, Adrienne M.
554979e7-a4f7-40ae-87e9-c707fa0cfcc2
Pargeter, Richard J.
58926ecb-4666-45a6-9c54-68dc280dd7c3
Winful, Dorothy A.
fc3c433e-34ef-402f-a036-f5184b213fa6
Cashell, Katherine A.
99ac6797-700d-4119-bffc-b6557586bd50
Afshan, Sheida
68dcdcac-c2aa-4c09-951c-da4992e72086
Barnes, Adrienne M.
554979e7-a4f7-40ae-87e9-c707fa0cfcc2
Pargeter, Richard J.
58926ecb-4666-45a6-9c54-68dc280dd7c3

Winful, Dorothy A., Cashell, Katherine A., Afshan, Sheida, Barnes, Adrienne M. and Pargeter, Richard J. (2017) Elevated temperature material behaviour of high-strength steel. Proceedings of the Institution of Civil Engineers: Structures and Buildings, 170 (11), 777-787, [1600213]. (doi:10.1680/jstbu.16.00213).

Record type: Article

Abstract

This paper presents an experimental investigation into the behaviour of high-strength steel (HSS) structures (i.e. yield strength between 460 and 700 N/mm2) in fire conditions. The paper proceeds with a description of the experimental programme that includes two different grades of HSS with the aim of assessing (a) the mechanical properties at elevated temperature through tensile testing and (b) the effect of chemical composition and processing route on the microstructure through a detailed metallurgical investigation. The investigation takes a holistic view of the analysis whereby the effect of processing route and composition on the microstructure and hence mechanical properties are assessed. In this paper, following a detailed description of the tests under isothermal conditions, the results are analysed to determine strength and stiffness reduction factors at elevated temperatures and these values are compared with the literature and design standards.

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More information

e-pub ahead of print date: 19 October 2017
Published date: 1 November 2017
Keywords: Fire engineering, Steel structures, Strength & testing of materials

Identifiers

Local EPrints ID: 429869
URI: http://eprints.soton.ac.uk/id/eprint/429869
ISSN: 0965-0911
PURE UUID: 61eb933e-8213-45c6-8061-3dd173cef40a
ORCID for Sheida Afshan: ORCID iD orcid.org/0000-0003-1048-2931

Catalogue record

Date deposited: 08 Apr 2019 16:30
Last modified: 18 Mar 2024 03:52

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Contributors

Author: Dorothy A. Winful
Author: Katherine A. Cashell
Author: Sheida Afshan ORCID iD
Author: Adrienne M. Barnes
Author: Richard J. Pargeter

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