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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Vilnius Gediminas Technical University
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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/dτ. 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 sąlygos, kritinė deformacija, kritinė temperatūra, stiprumo bandymai.
First Published Online: 14 Oct 2010
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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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