A Method of Evaluating the Destruction of a Reinforced Concrete Hollow Core Slab for Ensuring Fire Resistance

Author(s): Sidnei S. O.1*, Nuianzin O. M.1, Kostenko T. V.1, Berezovskyi A. I.1, Wąsik W.2

Affiliation(s):
1 Cherkasy Institute of Fire Safety of the National University of Civil Defence of Ukraine, 8, Onoprienko St., 18034 Cherkasy, Ukraine;
2 The Main School of Fire Service, 52/54, Slowackiego Str., 01-629 Warsaw, Poland

*Corresponding Author’s Address: [email protected]

Issue: Volume 10, Issue 2 (2023)

Dates:
Submitted: June 13, 2023
Received in revised form: August 23, 2023
Accepted for publication: September 9, 2023
Available online: September 14, 2023

Citation:
Sidnei S. O., Nuianzin O. M., Kostenko T. V., Berezovskyi A. I., Wąsik W. (2023). A method of evaluating the destruction of a reinforced concrete hollow core slab for ensuring fire resistance. Journal of Engineering Sciences (Ukraine), Vol. 10(2), pp. D1–D7. DOI: 10.21272/jes.2023.10(2).d1

DOI: 10.21272/jes.2023.10(2).d1

Research Area:  MECHANICAL ENGINEERING: Dynamics and Strength of Machines

Abstract. Fire tests of reinforced concrete floor slabs do not allow the detection of the onset of the boundary state due to loss of entirety because blocks are installed on the unheated surface to reproduce the design load. This prevents the formation of cracks through which toxic combustion products, smoke, and temperature spread can penetrate. Determining a building structure’s actual fire resistance limit was fixed at the onset of any fire resistance boundary state. It was proven that calculation methods for fire resistance assessment have significant advantages over experimental methods. To reduce the number of finite elements for a rational calculation of the fire resistance assessment of a reinforced concrete hollow core slab, a geometric model of 1/4 of this structure was built. The possibility of visualizing the studied structure at full scale was realized when obtaining the calculation results. The stress-strain state of the studied structure was evaluated based on the thermal and mechanical loading results applied to the reinforced concrete hollow core slab. Thus, the work’s objective was achieved based on the calculation experiments’ results. A methodology was developed for calculating the destruction of a reinforced concrete hollow core slab while assessing its fire resistance. Scientific fundamentals for determining the onset of the boundary state of loss of entirety were developed. The proposed methodology allowed for a reliable assessment of the fire resistance of such structures.

Keywords: finite element modeling, weight reduction, uniformly distributed load, temperature distribution.

References:

  1. Awaad, H. N., Suleiman, H. T., Elbataony, H. E. M. (2021). Strengthening of reinforced concrete hollow core slabs using FRP. Concrete Structures, pp. 1–7.
  2. Ulf Arne Girhammar, Matti Pajari (2008). Tests and analysis on shear strength of composite slabs of hollow core units and concrete topping. Construction and Building Materials, Vol. 22(8), pp. 1708–1722. https://doi.org/10.1016/j.conbuildmat.2007.05.013
  3. Zhang, H., Huang, W., Liu, B., Han, C., Li, Q., Chen, C. (2022). Flexural behavior of precast concrete hollow-core slabs with high-strength tendons. Journal of Building Engineering, Vol. 59, 105050. https://doi.org/10.1016/j.jobe.2022.105050
  4. Liu, F., Battini, J.-M., Pacoste, C. (2020). Finite element modelling for the dynamic analysis of hollow-core concrete floors in buildings. Journal of Building Engineering, Vol. 32, 101750. https://doi.org/10.1016/j.jobe.2020.101750
  5. Albero, V., Saura, H., Hospitaler, A., Montalva, J. M., Romero, M. L. (2018). Optimal design of prestressed concrete hollow core slabs taking into account its fire resistance. Advances in Engineering Software, Vol. 122, pp. 81–92. https://doi.org/10.1016/j.advengsoft.2018.05.001
  6. Thienpont, T., De Corte, W., Caspeele, R., Van Coile, R. (2023). Fire resistance and associated failure modes of axially restrained hollow core slabs. Fire Safety Journal, Vol. 139, 103827. https://doi.org/10.1016/j.firesaf.2023.103827
  7. Sadkovyi, V., Rybka, E., Otrosh, Y. (2021). Fire Resistance of Reinforced Concrete and Steel Structures. PC Technology Center, Kharkiv, Ukraine. https://doi.org/10.15587/978-617-7319-43-5
  8. Nuianzin, O., Pozdieiev, S., Sidnei, S., Kostenko, T., .Borysova, A., Samchenko, T. (2023). Increasing the efficiency and environmental friendliness of fire resistance assessment tools for load-bearing reinforced concrete building structures. Ecological Engineering and Environmental Technology, Vol. 24(4), pp. 138–146. https://doi.org/10.12912/27197050/161923
  9. Wang, Y., Wu, J., Huang, Z., Zhou, M. (2019). Experimental studies on continuous reinforced concrete slabs under single and multi-compartment fires with cooling phase. Fire Safety Journal, Vol. 111, 102915. https://doi.org/10.1016/j.firesaf.2019.102915
  10. Wang, Y., Bisby, L. A., Wang, T.-Y., Yuan, G., Baharudin, E. (2018). Fire behaviour of reinforced concrete slabs under combined biaxial in-plane and out-of-plane loads. Fire Safty Journal, Vol. 96, 27–45. https://doi.org/10.1016/j.firesaf.2017.12.004
  11. Pozdieiev, S., Nuianzin, O., Sidnei, S., Shchipets, S. (2017). Computational study of bearing walls fire resistance tests efficiency using different combustion furnaces configurations. MATEC Web of Conferences, Vol. 116 (2017), 02027. https://doi.org/10.1051/matecconf/201711602027
  12. Wang, Y., Wu, J., Huang, Z., Zhou, M. (2015). A fire test of continuous panels in a full-scale steel-framed structure. Engineering Mechanics, Vol. 32(1), pp. 145–153. https://doi.org/10.6052/j.issn.1000-4750.2013.07.0694
  13. Wang, Y., Yuan, G., Huang, Z., Qingtao, L., Long, B. (2018). Modelling of reinforced concrete slabs in fire. Fire Safety Journal, Vol. 100, 171–185. https://doi.org/10.1016/j.firesaf.2018.08.005
  14. Cao, V. C., Vo, H. B., Dinh, L. H., Doan, D. V. (2022). Experimental behavior of fire-exposed reinforced concrete slabs without and with FRP retrofitting. Journal of Building Engineering, Vol. 51, 104315. https://doi.org/10.1016/j.jobe.2022.104315
  15. Piloto, P. A. G., Balsa, C., Santos, L. M. C., Kimura, E. F. A. (2020). Effect of the load level on the resistance of composite slabs with steel decking under fire conditions. Journal of Fire Sciences, Vol. 38, pp. 212–232. https://doi.org/10.1177/0734904119892210
  16. Wang, Y., Yuan, G., Huang, Z., Lyv, J., Li, Z.-Q., Wang, T.-Y. (2016). Experimental study on the fire behaviour of reinforced concrete slabs under combined uni-axial in-plane and out-of-plane loads. Engineering Structures, Vol. 128, pp. 316–332. https://doi.org/10.1016/j.engstruct.2016.09.054
  17. Hua, N., Khorasani, N. E., Tessari, A. (2022). Numerical modeling of the fire behavior of reinforced concrete tunnel slabs during heating and cooling. Engineering Structures, Vol. 258, 114135. https://doi.org/10.1016/j.engstruct.2022.114135
  18. Feist, C., Aschaber, M., Hofstetter, G. (2009). Numerical simulation of the load-carrying behavior of RC tunnel structures exposed to fire. Finite Elements in Analysis and Design, Vol. 45(12), pp. 958–965. https://doi.org/10.1016/j.finel.2009.09.010
  19. Shnal, T., Pozdieiev, S., Yakovchuk, R., Nekora, O. (2021). Development of a mathematical model of fire spreading in a three-storey building under full-scale fire-response tests. Lecture Notes in Civil Engineering, Vol. 100, pp. 419–428. https://doi.org/10.1007/978-3-030-57340-9_51
  20. Hajiloo, H., Green, M. F. (2019). GFRP reinforced concrete slabs in fire: Finite element modelling. Engineering Structures, Vol. 183, pp. 1109–1120. https://doi.org/10.1016/j.engstruct.2019.01.028
  21. Bolina, F. L., Rodrigues, J. P. C. (2023). Finite element analysis criteria for composite steel decking concrete slabs subjected to fire. Fire Safety Journal, Vol. 139, 103818. https://doi.org/10.1016/j.firesaf.2023.103818

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