Heating of rod steel structures with partial and full fire-protected external surface under fire exposure

Authors

  • Sergey S. Botyan State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25 https://orcid.org/0000-0002-8593-4413
  • Sergey M. Zhamoydik State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25 https://orcid.org/0000-0003-0407-5176
  • Vadim A. Kudryashov State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25 https://orcid.org/0000-0003-4889-1060
  • Nikolay M. Olesiyuk State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25 https://orcid.org/0000-0001-5925-1371

DOI:

https://doi.org/10.33408/2519-237X.2020.4-1.20

Keywords:

fire resistance, intumescent fire protection, thermophysical characteristics, coefficient of thermal conductivity, specific heat, inverse heat conduction problem, standard temperature regime, finite element method

Abstract

Purpose. Based on experimental studies and theoretical data, to determine the thermophysical characteristics of the intumescent flame retardant and evaluate the heating of rod steel structures with partial (tripartite) and full fire protection of the outer surface under conditions of high temperatures in comparison with the results of fire tests.

Methods. Experimental studies, modeling in the system of finite element analysis.

Findings. Based on a series of experimental and theoretical studies in the ANSYS finite element analysis system, the heat engineering problem of fire resistance of steel structures with partial and full fire protection of the outer surface is solved. Experimental studies were used to evaluate the effective values of the thermal and physical characteristics of the intumescent composition (Sika Unitherm ASR) by solving the inverse heat conduction problem for the calculated finite element model using parametric optimization methods. The obtained thermal and physical characteristics made it possible to evaluate the heating of steel structures with partial and full fire protection of the outer surface under conditions of high temperatures and compare that with the results of fire tests.

Application field of research. The results can be used to solve the fire resistance problems of rod steel structures with partial and full fire protection of the outer surface while designing and constructing buildings and structures.

Author Biographies

Sergey S. Botyan, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Chair of Fire Safety, Senior Lecturer

Sergey M. Zhamoydik, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Chair of Fire Safety, Associate Professor; PhD in Technical Sciences, Associate Professor

Vadim A. Kudryashov, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

Department of Scientific and Innovation Activity, Head of Department of Scientific and Innovation Activity; PhD in Technical Sciences, Associate Professor

Nikolay M. Olesiyuk, State Educational Establishment «University of Сivil Protection of the Ministry for Emergency Situations of the Republic of Belarus»; 220118, Belarus, Minsk, ul. Mashinostroiteley, 25

International Cooperation Sector, Senior Inspector

References

Gravit M.V. Otsenka porovogo prostranstva penokoksa ognezashchitnykh vspuchivayushchikhsya pokrytiy [Evaluation the pore space of foam coke flame retardant intumescent coatings]. Fire and explosion safety, 2013. Vol. 22, No. 5. Pp. 33–37. (rus)

Nateykina L.I. Minimal'naya tolshchina ognezashchitnogo pokrytiya vspenivayushchegosya tipa [The minimum thickness of the fireproof coating foaming type]. Fire and explosion safety, 2016. Vol. 25, No. 2. Pp. 33–37. (rus)

Golovanov V.I., Pavlov V.V., Pekhotikov A.V. Ognezashchita stal'nykh konstruktsiy plitnym materialom PYRO-SAFE AESTUVER T [Fire protection of steel structures with PYRO-SAFE AESTUVER T plate material]. Fire and explosion safety, 2016. No. 11. Pp. 8–16. (rus). DOI: 10.18322/ PVB.2016.25.11.8-16.

Yakovlev A.I. Raschet ognestoykosti stroitel'nykh konstruktsiy [Calculation of fire resistance of building structures]. Moscow: Stroyizdat, 1988. 143 p. (rus)

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Published

2020-02-20

How to Cite

Botyan С., Zhamoydik С., Kudryashov В. and Olesiyuk Н. (2020) “Heating of rod steel structures with partial and full fire-protected external surface under fire exposure”, Journal of Civil Protection, 4(1), pp. 20–31. doi: 10.33408/2519-237X.2020.4-1.20.

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