Naslov
MODELLING OF THE INFLUENCE OF CREEP STRAINS ON THE FIRE RESPONSE OF STEEL ELEMENTS

Autori
Torić, Neno ; Harapin, Alen ; Boko, Ivica ; Peroš, Bernardin ; Ban, Maja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Applications of Structural Fire Engineering / Wald, F. ; Burgess, I. ; Horová, K. ; Jána, T. ; Jirku, J. - Prag : Czech technical university in Prague, 2013, 480-485

ISBN
978-80-01-05204-4

Skup
Proceedings of International Conference Application of Structural Fire Engineering

Mjesto i datum
Prag, Češka Republika, 19.04.2013. - 20.04.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fire ; heat transfer ; finite element ; steel ; creep strains

Sažetak
The paper presents a numerical model for the behaviour of steel structures exposed to fire capable of taking into account the effect of steel creep at high temperatures by using a simple implicit model. The objective of the simple implicit model is to modify the material stationary stress-strain curves. After reaching temperatures above 400°C, stress-strain curves are modified by stretching the curves using a calculated value of creep strain at current stress, temperature and time. Described numerical procedure was tested by modelling the behaviour of two simply supported steel elements that were partially exposed to high temperatures in an in-house experiment. Authors are claiming that the implicit model is applicable for modelling the behaviour of steel elements with free thermal expansion or with a low level of restriction to thermal expansion.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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