Numerical study of the heat-transfer problem solution for a reinforced concrete floor slab within a fire compartment using Abaqus
https://doi.org/10.33979/2073-7416-2026-123-1-72-81
Abstract
Under current conditions, the fire resistance assessment of building structures cannot be limited to the use of the standard time–temperature fire curve, since it does not reflect the transient and spatially non-uniform thermal exposure inherent to real fires. This paper describes the use of the Abaqus software package to analyze the behavior of reinforced concrete structures under real-fire conditions, enabling numerical simulation within a coupled thermo-mechanical framework. A numerical model of a reinforced concrete floor slab is presented on the basis of the adopted physical model of an existing structural frame, including the definition of geometric parameters, the thermophysical and mechanical properties of concrete and reinforcement, and the thermal loading conditions. The main objective of the study is to verify the correctness of the input data specified in the numerical model and to substantiate the feasibility of further investigations based on it. Model validation is carried out by comparing the results obtained from analytical and numerical solutions of the heat-transfer problem; the acceptable agreement achieved in this comparison confirms the correctness of the adopted numerical model and supports its further application for analyzing the thermal effects of real fires on reinforced concrete structures and assessing their fire resistance.
About the Authors
V. S. Fedorov
Russian University of Transport
Russian Federation
Russian Federation
Fedorov Viktor S. - doctor in tech. sc., prof., head of the dep. of civil and industrial engineering
Moscow
P. A. Matvienko
Russian University of Transport
Russian Federation
Russian Federation
Matvienko Pavel A. - PhD student, dep. of civil and industrial engineering
Moscow
References
1. Fedorov V.S. Aktualnye problemy otsenki ognestoykosti konstruktsiy v sostave nesushchey sistemy zdaniya [Current issues in assessing the fire resistance of structures within a building's load-bearing system]. Innovatsionnoe razvitie regionov: potentsial nauki i sovremennogo obrazovaniya : materialy Natsionalnoy nauchno-prakticheskoy konferentsii. Astrakhan, 09 fevralya 2018 goda. Astrakhan: Astrakhanskiy gosudarstvennyy arkhitekturno-stroitelnyy universitet; 2018:3-7. (rus)
2. Radaykin O.V. Sovershenstvovanie metodiki rascheta zhestkosti izgibaemykh elementov iz obychnogo zhelezobetona s primeneniem teoriy silovogo soprotivleniya [Improvement of the method for calculating the stiffness of bent elements made of ordinary reinforced concrete using theories of force resistance] [dissertation]. Kazan; 2012. 183 p. (rus)
3. Hesien M., Youssef M., El-Fitiany S. Finite Element Analysis of Flat Plate Structures in Fire. Fire. 2025;8(7):252. doi:10.3390/fire8070252.
4. Sugrova V.E., Matvienko P.A. Peremeshchayushchiesya pozhary: metodologiya i vliyanie na konstruktivnye kharakteristiki [Travelling fires: methodology and impact on structural characteristics]. Potentsial intellektualno odaryonnoy molodezhi - razvitiyu nauki i obrazovaniya : materialy VIII Mezhdunarodnogo nauchnogo foruma molodykh uchenykh, innovatorov, studentov i shkolnikov. Astrakhan, 23-25 aprelya 2019 goda. Tom 2. Astrakhan: Astrakhanskiy gosudarstvennyy arkhitekturno-stroitelnyy universitet; 2019:55-64. (rus)
5. Matvienko P.A. Peremeshchayushchiysya pozhar: modelirovanie dinamiki temperatury [Travelling fire: modeling temperature dynamics]. Bezopasnost stroitelnogo fonda Rossii: problemy i resheniya : materialy mezhdunarodnykh akademicheskikh chteniy. Kursk, 14 noyabrya 2025 goda. Kursk: Kurskiy gosudarstvennyy universitet; 2025:62-68. (rus)
6. Stern-Gottfried J., Rein G. Travelling fires for structural design–Part I: Literature review. Fire Safety Journal. 2012;54:74-85. doi:10.1016/j.firesaf.2012.06.003.
7. Gao W.-Y., Dai J.-G., Teng J.G., Chen G.M. Finite element modeling of reinforced concrete beams exposed to fire. Engineering Structures. 2013;52:488-501. doi:10.1016/j.engstruct.2013.03.017.
8. Zheng Y.-Q., Zhuang J. Analysis on Fire Resistance of Reinforced Concrete Wall. Advanced Materials Research. 2011;243-249:797-800. doi:10.4028/www.scientific.net/AMR.243-249.797.
9. Hua N., Elhami Khorasani N., Tessari A. Numerical modeling of the fire behavior of reinforced concrete tunnel slabs during heating and cooling. Engineering Structures. 2022;258:114135. doi:10.1016/j.engstruct.2022.114135.
10. Elshorbagi M., AlHamaydeh M. Simulation of RC Beams during Fire Events Using a Nonlinear Numerical Fully Coupled Thermal-Stress Analysis. Fire. 2023;6(2):57. doi:10.3390/fire6020057.
11. Stern-Gottfried J., Rein G., Bisby L., Torero J. Experimental review of the homogeneous temperature assumption in post-flashover compartment fires. Fire Safety Journal. 2010;45:249-261. doi:10.1016/j.firesaf.2010.03.007.
12. Radaykin O.V. Sravnitelnyy analiz razlichnykh diagramm deformirovaniya betona po kriteriyu energozatrat na deformirovanie i razrushenie [Comparative analysis of various concrete deformation diagrams based on the criterion of energy consumption for deformation and fracture]. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova. 2019;10:29-39. (rus)
13. Radaykin O.V. Teoreticheskie osnovy diagrammnogo metoda rascheta sterzhnevykh elementov iz armirovannogo betona [Theoretical foundations of the diagram method for calculating reinforced concrete bar elements]. Stroitelstvo i rekonstruktsiya. 2020;6(92):26-42. (rus)
14. Roytman V.M. Otsenka ognestoykosti stroitelnykh konstruktsiy na osnove kineticheskikh predstavleniy o povedenii materialov v usloviyakh pozhara [Assessment of fire resistance of building structures based on kinetic concepts of material behavior under fire conditions] [dissertation]. Moscow; 1985. 412 p. (rus)
15. Roytman V.M. Inzhenernye resheniya po otsenke ognestoykosti proektiruemykh i rekonstruiruemykh zdaniy [Engineering solutions for assessing the fire resistance of designed and reconstructed buildings]. Moscow: Izd-vo Assots. "Pozharnaya bezopasnost i nauka"; 2001. (rus)
16. Roytman V.M., Pristupyuk D.N. Osobennosti otsenki stoykosti zdaniy i sooruzheniy iz zhelezobetonnykh konstruktsiy pri kombinirovannykh osobykh vozdeystviyakh s uchastiem pozhara [Features of assessing the resistance of buildings and structures made of reinforced concrete structures under combined special impacts involving fire]. Pozharovzryvobezopasnost. 2010;19(7). (rus)
Review
For citations:
Fedorov V.S., Matvienko P.A. Numerical study of the heat-transfer problem solution for a reinforced concrete floor slab within a fire compartment using Abaqus. Building and Reconstruction. 2026;(1):72-81. (In Russ.) https://doi.org/10.33979/2073-7416-2026-123-1-72-81
Views:
72
JATS XML
Email this article 