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Open AccessArticle

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

1
Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Matice Hrvatske 15, 21000 Split, Croatia
2
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; https://doi.org/10.3390/met8110874
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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MDPI and ACS Style

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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