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Behaviour of Steel Grade S275JR Columns under the Influence of High-Temperature Creep

Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Matice Hrvatske 15, 21000 Split, Croatia
Department of Civil and Structural Engineering, University of Sheffield, Sir Frederick Mappin Building, Mappin Street, Sheffield S1 3JD, UK
Author to whom correspondence should be addressed.
Metals 2018, 8(11), 874;
Received: 11 October 2018 / Revised: 19 October 2018 / Accepted: 23 October 2018 / Published: 25 October 2018
This paper presents a test study focused on determining the influence of high-temperature creep on the buckling of grade S275JR columns. Both capacity and stationary-creep column tests were performed within the study. The results obtained demonstrate that high-temperature creep influences a column’s load-bearing capacity, even at 400 °C if the column’s load ratio is above 87%. The reduction of load capacity due to creep was determined experimentally up to 600 °C, for which the failure due to creep occurred at load ratios above 57% of the capacity at 600 °C. The failure times for all the column creep tests occurred within 240 min of loading at constant temperature. Numerical modelling of the creep tests, including their constant-temperature capacity, was performed with the help of the research software Vulcan, by explicitly including a previously developed creep model for grade S275JR steel in the total strain formulation. View Full-Text
Keywords: steel; fire; columns; creep; S275JR; stress steel; fire; columns; creep; S275JR; stress
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Torić, N.; Boko, I.; Divić, V.; Burgess, I.W. Behaviour of Steel Grade S275JR Columns under the Influence of High-Temperature Creep. Metals 2018, 8, 874.

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