DOI : https://doi.org/10.62527/comien.2.4.72

Adequacy of Finite Element Analysis in Numerical Simulation and Behaviour Prediction of RC Beam and Post Tensioned Slab in Fire Tests

Sajid Ahmad Mulani (1), Sachin Kadam (2), Athar Jamadar (3)
(1) Department of Applied Mechanics, Walchand College of Engineering, Sangli, Maharashtra, India
(2) Department of Applied Mechanics, Walchand College of Engineering, Sangli, Maharashtra, India
(3) Department of Civil Engineering, Kasegaon Education Society’s Rajarambapu Institute of Technology, affiliated to Shivaji University, Sakharale, MS-415414, India
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Mulani , S. A., Kadam , S., & Jamadar , A. (2025). Adequacy of Finite Element Analysis in Numerical Simulation and Behaviour Prediction of RC Beam and Post Tensioned Slab in Fire Tests. International Journal on Computational Engineering, 2(4), 137–146. https://doi.org/10.62527/comien.2.4.72
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Finite Element analysis has evolved into a crucial method for predicting behaviour of civil structures in real world. Because concrete depreciates quickly at high temperatures in terms of its mechanical, chemical, physical, and thermal properties, fire poses a serious hazard to reinforced concrete structures. The duration to which the structure is exposed to fire determines the maximum temperature it will attain. Experimental fire tests are not financially feasible and resource-intensive, and the size of specimen is to be tested is limited by the testing facility's capability. Furthermore, because the structure's many components are subjected to varying temperatures, the behaviour of the specimen is not a true representation of entire structure. Finite Element Analysis has been demonstrated to be beneficial in tackling this since it makes complex structural models and loading conditions easy to apply, thus facilitating the forecasting of their behaviour. This research study evaluates the efficiency of Finite Element analysis in predicting the behaviour of various structural components subjected to fire by comparing them with Experimental results.

U.S. Fire Administration, Residential Building Fire Causes, U.S. Fire Administration, Emmitsburg, MD, USA, 2022. [Online]. Available: https://www.usfa.fema.gov/statistics/residential-fires/causes.html.

V. Kodur, P. Kumar, and M. M. Rafi, "Fire hazard in buildings: Review, assessment and strategies for improving fire safety," PSU Res. Rev., vol. 4, no. 1, pp. 1–23, 2019, doi: 10.1108/PRR-12-2018-0033.

A. Cowlard, A. Bittern, C. Abecassis-Empis, and J. Torero, "Fire safety design for tall buildings," Procedia Eng., vol. 62, pp. 169–181, 2013, doi: 10.1016/j.proeng.2013.08.053.

T. M. Jeyashree, P. R. Kannan Rajkumar, and K. S. Satyanarayanan, "Developments and research on fire response behaviour of prestressed concrete members - A review," J. Build. Eng., vol. 57, p. 104797, 2022, doi: 10.1016/j.jobe.2022.104797.

M. M. Drury, A. N. Kordosky, and S. E. Quiel, "Robustness of a partially restrained, partially composite steel floor beam to natural fire exposure: Novel validation and parametric analysis," J. Build. Eng., vol. 44, p. 102533, 2021, doi: 10.1016/j.jobe.2021.102533.

H. Liu, Z. Y. Gao, Q. W. Liu, and J. L. Zhang, "Assessment and strengthening of a fire damaged prestressed concrete continuous girder bridge," Mater. Struct., vol. 48, no. 1, pp. 81–87, Jan. 2015, doi: 10.1617/s11527-013-0168-4.

W. Zheng, X. Hou, and M. Xu, "Experiment and analysis on fire resistance of two-span unbonded prestressed concrete continuous slabs," J. Build. Struct., vol. 28, no. 5, pp. 1–13, 2007.

X. Hou, W. Zheng, V. Kodur, and H. Sun, "Effect of temperature on mechanical properties of prestressing bars," Constr. Build. Mater., vol. 61, pp. 24–32, 2014, doi: 10.1016/j.conbuildmat.2014.03.001.

European Committee for Standardization, EN 1992-1-2:2004: Eurocode 2: Design of Concrete Structures - Part 1-2: General Rules - Structural Fire Design, CEN, Brussels, Belgium, 2004.

International Organization for Standardization, ISO 834-1:1999: Fire-resistance tests - Elements of building construction - Part 1: General requirements, ISO, Geneva, Switzerland, 1999.

ASTM International, ASTM E119-20: Standard Test Methods for Fire Tests of Building Construction and Materials, ASTM, West Conshohocken, PA, USA, 2020.

J. Zehfuss and D. Hosser, "A parametric natural fire model for the structural fire design of multi-storey buildings," Fire Saf. J., vol. 42, no. 2, pp. 115–126, 2007, doi: 10.1016/j.firesaf.2006.08.004.

U. Diederichs, C. Ehm, A. Weber, and G. Becker, "Deformation behaviour of HTR-concrete under biaxial stresses and elevated temperatures," in Proc. 9th Int. Conf. Struct. Mech. Reactor Technol. (SMiRT 9), Lausanne, Switzerland, 1987, pp. H13–H19.

Z. P. Bažant and J. C. Chern, "Stress-induced thermal and shrinkage strains in concrete," J. Eng. Mech., vol. 113, no. 10, pp. 1493–1511, Oct. 1987, doi: 10.1061/(ASCE)0733-9399(1987)113:10(1493).

V. Kodur, "Properties of concrete at elevated temperatures," ISRN Civ. Eng., vol. 2014, p. 468510, 2014, doi: 10.1155/2014/468510.

ASCE Committee on Fire Protection, Structural Fire Protection, ASCE, New York, NY, USA, 1992, doi: 10.1061/9780872628885.

M. Rokade, M. Gaikwad, S. Singh, and S. Kadam, "A simplified regression-based approach for concrete mechanical properties at elevated temperature," Asian J. Civ. Eng., vol. 23, no. 7, pp. 1065–1085, 2022, doi: 10.1007/s42107-022-00469-1.

Y. F. Chang, Y. H. Chen, M. S. Sheu, and G. C. Yao, "Residual stress–strain relationship for concrete after exposure to high temperatures," Cement Concrete Res., vol. 36, no. 10, pp. 1999–2005, Oct. 2006, doi: 10.1016/j.cemconres.2006.05.029.

V. K. R. Kodur, T. C. Wang, and F. P. Cheng, "Predicting the fire resistance behaviour of high strength concrete columns," Cement Concrete Compos., vol. 26, no. 2, pp. 141–153, Feb. 2004, doi:10.1016/S0958-9465(03)00089-1.

T. T. Lie, T. J. Rowe, and T. D. Lin, "Residual strength of fire-exposed reinforced concrete columns," ACI Spec. Publ., vol. SP-92, pp. 153–174, 1986.

S. Mindess, Ed., Developments in the Formulation and Reinforcement of Concrete, 2nd ed. Sawston, U.K.: Woodhead Publishing, 2019.

W. Khaliq and V. Kodur, "High temperature mechanical properties of high-strength fly ash concrete with and without fibers," ACI Mater. J., vol. 109, no. 6, pp. 663–672, Nov. 2012, doi: 10.14359/51684164.

C. R. Cruz, "Elastic properties of concrete at high temperatures," J. PCA Res. Develop. Labs., vol. 8, no. 2, pp. 37–45, May 1966.

D. A. Krishna, R. S. Priyadarsini, and S. Narayanan, "Effect of elevated temperatures on the mechanical properties of concrete," Procedia Struct. Integr., vol. 14, pp. 384–394, 2019, doi:10.1016/j.prostr.2019.05.047.

L. Y. Li and J. Purkiss, "Stress–strain constitutive equations of concrete material at elevated temperatures," Fire Saf. J., vol. 40, no. 7, pp. 669–686, 2005, doi: 10.1016/j.firesaf.2005.06.003.

British Standards Institution, BS 8110-1:1997: Structural use of concrete - Part 1: Code of practice for design and construction, BSI, London, U.K., 1997.

J. M. Atienza and M. Elices, "Behavior of prestressing steels after a simulated fire: Fire-induced damages," Constr. Build. Mater., vol. 23, no. 8, pp. 2932–2940, Aug. 2009, doi:10.1016/j.conbuildmat.2009.02.024.

A. M. Shakya and V. K. R. Kodur, "Effect of temperature on the mechanical properties of low relaxation seven-wire prestressing strand," Constr. Build. Mater., vol. 124, pp. 74–84, 2016, doi:10.1016/j.conbuildmat.2016.07.080.

Z. Tao, "Mechanical properties of prestressing steel after fire exposure," Mater. Struct., vol. 48, no. 9, pp. 3037–3047, Sep. 2015, doi: 10.1617/s11527-014-0377-5.

European Committee for Standardization, EN 1993-1-2:2005: Eurocode 3: Design of steel structures - Part 1-2: General rules - Structural fire design, CEN, Brussels, Belgium, 2005.

M. B. Dwaikat and V. K. R. Kodur, "Response of restrained concrete beams under design fire exposure," J. Struct. Eng., vol. 137, no. 9, pp. 953–963, Sep. 2011, doi: 10.1061/(ASCE)ST.1943-541X.0000358.

V. K. R. Kodur and A. Agrawal, "An approach for evaluating residual capacity of reinforced concrete beams exposed to fire," Eng. Struct., vol. 110, pp. 293–306, 2016, doi:10.1016/j.engstruct.2015.11.047.

S. Park and T. H. K. Kang, "Experimental and numerical study of fire endurance of bonded posttensioned concrete slabs," J. Struct. Eng., vol. 149, no. 12, p. 04023177, Dec. 2023, doi:10.1061/JSENDH.STENG-12384.

W. Y. Gao, J. G. Dai, J. G. Teng, and G. M. Chen, "Finite element modeling of reinforced concrete beams exposed to fire," Eng. Struct., vol. 52, pp. 488–501, Jul. 2013, doi: 10.1016/j.engstruct.2013.03.017.

J. A. Purkiss and L.-Y. Li, Fire Safety Engineering Design of Structures, 3rd ed. Boca Raton, FL, USA: CRC Press, 2013, doi:10.1201/b16059.