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Published: Građevinar 77 (2025) 6
Paper type: Scientific research paper
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On the effect of different Eurocode 2-based modelling choices on the calculated fire resistance of RC columns

Marko Rogulj, Alen Harapin, Peter Češarek, Jerneja Češarek Kolšek

Abstract

This paper examines the impact of different modelling choices on the fire performance of RC columns using Eurocode 2 in a real-world case study. The methodology includes a comparative analysis of simplified and advanced numerical simulations, employing FDS for fire curves and ABAQUS for thermal and mechanical analyses. Results show how modelling assumptions affect load-bearing capacity and fire resistance. Conclusions emphasise balancing safety and efficiency, highlighting the importance of variable axial loads and multiple heat zones for accurate fire resistance assessment.

Keywords
fire analysis, RC column, simplified procedures, advanced procedures, natural fires, EC2

HOW TO CITE THIS ARTICLE:

Rogulj, M., Harapin, A., Češarek, P., Češarek Kolšek, J.: On the effect of different Eurocode 2-based modelling choices on the calculated fire resistance of RC columns, GRAĐEVINAR, 77 (2025) 6, pp. 567-582, doi: https://doi.org/10.14256/JCE.4118.2024

OR:

Rogulj, M., Harapin, A., Češarek, P., Češarek Kolšek, J. (2025). On the effect of different Eurocode 2-based modelling choices on the calculated fire resistance of RC columns, GRAĐEVINAR, 77 (6), 567-582, doi: https://doi.org/10.14256/JCE.4118.2024

LICENCE:

Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
A4118 1 WEB
Marko Rogulj
Harapin Alen
Alen Harapin
University of Split,
Faculty of Civil Engineering, Architecture and Geodesy
A4118 3 WEB
Peter Češarek
University of Ljubljana
Faculty of civil and Geodetic Engineering, Slovenia
A4118 4 WEB
Jerneja Češarek Kolšek
University of Ljubljana
Faculty of civil and geodetic engineering