The heating rate impact on parameters characteristic of steel behaviour under fire conditions

The behaviour of steel structure components within a high temperature field depends not only on the absolute temperature, but also on the temperature vs time function and on the heating rate, dT/dτ. The research objective is the determination of the heating rate impact on selected strength paramet...

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Main Authors: Zoja Bednarek, Renata Kamocka
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2006-12-01
Series:Journal of Civil Engineering and Management
Subjects:
Online Access:http://localhost/journals.vgtu.lt/index.php/JCEM/article/view/8812
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spelling doaj-7248d7cd98304ad58c535f9370bb14d92021-07-02T06:38:07ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052006-12-0112410.3846/13923730.2006.9636403The heating rate impact on parameters characteristic of steel behaviour under fire conditionsZoja Bednarek0Renata Kamocka1The Main School of Fire Service (MSFS) in Warsaw, J. SÅ‚owackiego Str. 52/54, 01-629 Warsaw, PolandThe Main School of Fire Service (MSFS) in Warsaw, J. SÅ‚owackiego Str. 52/54, 01-629 Warsaw, Poland The behaviour of steel structure components within a high temperature field depends not only on the absolute temperature, but also on the temperature vs time function and on the heating rate, dT/dÏ„. The research objective is the determination of the heating rate impact on selected strength parameters of structural steels. Tests were performed under conditions of a linear temperature increase with different heating rates and with a constant stress value, σ/fy . After strength tests, the samples were subjected to metallography. Test results proved that the heating rate makes a significant impact on parameters that determine the steel structure bearing capacity at higher temperatures and that the heating rate should be accounted for in the strength analysis of steel structures exposed to high temperatures. Kaitinimo greiÄio įtakos gaisro paveiktų plienų charakteristikoms tyrimai Santrauka AukÅ¡ta temperatÅ«ra paveiktų plieno konstrukcijų elgsena priklauso ne tik nuo absoliutinÄ—s temperatÅ«ros, bet ir nuo temperatÅ«ros kitimo laike funkcijos bei kaitinimo greiÄio. Pateiktų tyrimų tikslas – nustatyti kaitinimo greiÄio įtakÄ… konstrukcinių plienų stiprumo charakteristikoms. Atlikti eksperimentiniai tyrimai, esant tiesiniam temperatÅ«ros augimui su skirtingais kaitinimo greiÄiais. Visuose bandiniuose įtempių lygis buvo vienodas. Po stiprumo nustatymo bandymų visiems bandiniams atlikta metalografija. Bandymų rezultatai parodÄ—, kad kaitinimo greitis turi didelÄ—s įtakos aukÅ¡ta temperatÅ«ra veikiamų plieninių konstrukcijų laikomosios galios parametrams. Å i įtaka turÄ—tų bÅ«ti vertinama atliekant gaisro temperatÅ«ra veikiamų plieno konstrukcijų stiprumo skaiÄiavimus. Raktiniai žodžiai: statybinis plienas, kaitinimo greitis, gaisro sÄ…lygos, kritinÄ— deformacija, kritinÄ— temperatÅ«ra, stiprumo bandymai. First Published Online: 14 Oct 2010 http://localhost/journals.vgtu.lt/index.php/JCEM/article/view/8812structural steelheating ratefire conditionscritical deformationcritical temperaturestrength tests
collection DOAJ
language English
format Article
sources DOAJ
author Zoja Bednarek
Renata Kamocka
spellingShingle Zoja Bednarek
Renata Kamocka
The heating rate impact on parameters characteristic of steel behaviour under fire conditions
Journal of Civil Engineering and Management
structural steel
heating rate
fire conditions
critical deformation
critical temperature
strength tests
author_facet Zoja Bednarek
Renata Kamocka
author_sort Zoja Bednarek
title The heating rate impact on parameters characteristic of steel behaviour under fire conditions
title_short The heating rate impact on parameters characteristic of steel behaviour under fire conditions
title_full The heating rate impact on parameters characteristic of steel behaviour under fire conditions
title_fullStr The heating rate impact on parameters characteristic of steel behaviour under fire conditions
title_full_unstemmed The heating rate impact on parameters characteristic of steel behaviour under fire conditions
title_sort heating rate impact on parameters characteristic of steel behaviour under fire conditions
publisher Vilnius Gediminas Technical University
series Journal of Civil Engineering and Management
issn 1392-3730
1822-3605
publishDate 2006-12-01
description The behaviour of steel structure components within a high temperature field depends not only on the absolute temperature, but also on the temperature vs time function and on the heating rate, dT/dÏ„. The research objective is the determination of the heating rate impact on selected strength parameters of structural steels. Tests were performed under conditions of a linear temperature increase with different heating rates and with a constant stress value, σ/fy . After strength tests, the samples were subjected to metallography. Test results proved that the heating rate makes a significant impact on parameters that determine the steel structure bearing capacity at higher temperatures and that the heating rate should be accounted for in the strength analysis of steel structures exposed to high temperatures. Kaitinimo greiÄio įtakos gaisro paveiktų plienų charakteristikoms tyrimai Santrauka AukÅ¡ta temperatÅ«ra paveiktų plieno konstrukcijų elgsena priklauso ne tik nuo absoliutinÄ—s temperatÅ«ros, bet ir nuo temperatÅ«ros kitimo laike funkcijos bei kaitinimo greiÄio. Pateiktų tyrimų tikslas – nustatyti kaitinimo greiÄio įtakÄ… konstrukcinių plienų stiprumo charakteristikoms. Atlikti eksperimentiniai tyrimai, esant tiesiniam temperatÅ«ros augimui su skirtingais kaitinimo greiÄiais. Visuose bandiniuose įtempių lygis buvo vienodas. Po stiprumo nustatymo bandymų visiems bandiniams atlikta metalografija. Bandymų rezultatai parodÄ—, kad kaitinimo greitis turi didelÄ—s įtakos aukÅ¡ta temperatÅ«ra veikiamų plieninių konstrukcijų laikomosios galios parametrams. Å i įtaka turÄ—tų bÅ«ti vertinama atliekant gaisro temperatÅ«ra veikiamų plieno konstrukcijų stiprumo skaiÄiavimus. Raktiniai žodžiai: statybinis plienas, kaitinimo greitis, gaisro sÄ…lygos, kritinÄ— deformacija, kritinÄ— temperatÅ«ra, stiprumo bandymai. First Published Online: 14 Oct 2010
topic structural steel
heating rate
fire conditions
critical deformation
critical temperature
strength tests
url http://localhost/journals.vgtu.lt/index.php/JCEM/article/view/8812
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