Skip to main content
Log in

Computational Simulation of the Thermal Effects on Composite Slabs Under Fire Conditions

  • Published:
Mathematics in Computer Science Aims and scope Submit manuscript

Abstract

A computational model is presented to evaluate the thermal effects on composite slabs with still deck, originated by standard fire exposure. Composite slabs with profiled steel deck are widely used in buildings which require fire resistance. Computational simulations are of great importance in this field and consist of an alternative to experimental fire tests that are expensive, time-consuming and require semi-specialized technical equipment. However, computational simulations must be reliable and realistic. The resulting transient and non-linear thermal problem is solved by the Finite Element Method in ANSYS and Matlab. The finite element models are three-dimensional, full scale, and multi-domain. Additionally, the models also include an air gap between the steel deck and the concrete part of the slab, in order to simulate the thermal effects induced by the debonding between the steel deck and the concrete, verified in previous experimental investigations. The results of the numerical simulations are validated against the results of experimental fire tests. The fire resistance of the composite slabs determined computationally is also compared with simplified calculation methods available in standards.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

Similar content being viewed by others

References

  1. Abdel-Halim, M.A.H., Hakmi, M.R., O’Leary, D.C.: Fire resistance of composite floor slabs using a model fire test facility. Eng. Struct. 21, 176–182 (1999)

    Article  Google Scholar 

  2. ABNT: NBR 14323 - structural fire design of steel and composite steel and concrete structures for buildings [in Portuguese] (2013)

  3. ANSYS: \(\text{ANSYS}\) Mechanical \(\text{ APDL }\), 18.2, help system, Thermal Analysis Guide, ANSYS, Inc

  4. CEN: EN 1991-1-2: Actions on structures - part 1-2: General actions - action on structures exposed to fire (2002)

  5. CEN: EN 1993-1-2: Design of steel structures. part 1-2: General rules - structural fire design eurocode (2002)

  6. CEN: EN 1992-1-2: Design of concrete structures. part 1-2: General rules - structural fire design (2004)

  7. CEN: EN 1994-1-2: Design of composite steel and concrete structures. part 1-2: General rules - structural fire design (2005)

  8. ECCS: Calculation of the fire resistance of composite concrete slabs with profiled steel sheet exposed to the standard fire (1983)

  9. Franssen, J.M.: SAFIR - A thermal/structural program modelling structures under fire. In: NASCC 2003 (2003)

  10. Hamerlinck, A.F.: The behaviour of fire-exposed composite steel/concrete slabs. Ph.D. Thesis, Eindhoven University of Technology (1991)

  11. ISO: International standard ISO 834 - fire-resistance tests: Elements of building construction (1975)

  12. Reddy, J.N., G, D.: The Finite Element Method in Heat Transfer and Fluid Dynamics, 3rd edn. CRC Press, Boca Raton (2010)

    Book  Google Scholar 

  13. Jiang, J., Main, J.A., Sadek, F.H., Weigand, J.M.: Numerical modeling and analysis of heat transfer in composite slabs with profiled steel decking. Tech. Rep. (2017)

  14. Jiang, J., Pintar, A., Weigand, J.M., Main, J.A., Sadek, F.: Improved calculation method for insulation-based fire resistance of composite slabs. Fire Saf. J. 105, 144–153 (2019)

    Article  Google Scholar 

  15. Li, G.Q., Zhang, N., Jiang, J.: Experimental investigation on thermal and mechanical behaviour of composite floors exposed to standard fire. Fire Saf. J. 89, 63–76 (2017)

    Article  Google Scholar 

  16. Lim, L., Wade, C.: Experimental fire tests of two-way concrete slabs—fire engineering research report 02/12. Tech. Rep., University of Canterbury (2002)

  17. MathWorks: Partial Differential Equation \(\text{ Toolbox }\) User’s Guide, Heat Transfer Problem with Temperature-Dependent Properties, The MathWorks, Inc

  18. Prates, L.M.S.: Numerical simulation of the fire behaviour of composite strucures (slabs) [in Portuguese]. Master’s Thesis, Politechnic Institute of Bragan ça (2018)

  19. Shampine, L.F., Reichelt, M.W.: The MATLAB ODE suite. SIAM J. Sci. Comput. 18(1), 1–22 (1997)

    Article  MathSciNet  Google Scholar 

  20. Yu, X., Huang, Z., Burgess, I., Plank, R.: Nonlinear analysis of orthotropic composite slabs in fire. Eng. Struct. 30(1), 67–80 (2008)

    Article  Google Scholar 

  21. Yunus A. Cengel, A.J.G.: Heat and Mass Transfer: Fundamentals and Applications. McGraw-Hill Education, Europe (2014)

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Paulo A. G. Piloto.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Piloto, P.A.G., Balsa, C., Ribeiro, F. et al. Computational Simulation of the Thermal Effects on Composite Slabs Under Fire Conditions. Math.Comput.Sci. 15, 155–171 (2021). https://doi.org/10.1007/s11786-020-00466-0

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11786-020-00466-0

Navigation