FIRE RESISTANCE OF REINFORCED CONCRETE AND STEEL STRUCTURES

Authors

Volodymyr Sadkovyi, National University of Civil Defence of Ukraine; Volodymyr Andronov, National University of Civil Defence of Ukraine; Oleg Semkiv, National University of Civil Defence of Ukraine; Andrii Kovalov, National University of Civil Defence of Ukraine; Evgenіy Rybka, National University of Civil Defence of Ukraine; Yurii Otrosh, National University of Civil Defence of Ukraine; Mykola Udianskyi, National University of Civil Defence of Ukraine; Volodymyr Koloskov, National University of Civil Defence of Ukraine; Alexander Danilin, National University of Civil Defence of Ukraine; Pavlo Kovalov, National University of Civil Defence of Ukraine

Keywords:

fire resistance, fire resistance, fire resistance assessment method, fire resistance assessment method, fire protection, fire protection, fire protective coatings, fire protective coatings, fireproof building structures, fireproof building structures, fire protection ability of coatings, fire protection ability of coatings, fire temperature regimes, fire temperature regimes, thermophysical characteristics, thermophysical characteristics

Synopsis

The scientific bases of ensuring fire resistance of reinforced concrete and steel building structures in the conditions of modern extreme influences are laid.

The current state of fire safety of buildings and structures, as well as approaches, methods and tools for its assessment are analyzed. Analysis of emergencies and fires in the world has shown that the vast majority of them occur in buildings and structures. It is shown that the cause of catastrophic consequences and destruction is the non-compliance of the actual limit of fire resistance of building structures with regulatory requirements. This is due to the imperfection of methods and means of assessing the fire resistance of building structures, including fire-retardant.

To overcome the shortcomings identified during the analysis, the paper develops physical and mathematical models of thermal processes occurring in the fire-retardant reinforced concrete structure. Based on the proposed models, a computational-experimental method for estimating the fire resistance of such structures has been developed. The efficiency of the proposed method was tested by identifying the relationship between the parameters of the fire-retardant plaster coating “Neospray” and the fire resistance of fire-retardant multi-hollow reinforced concrete floor.

The study of fire resistance of steel structures is proposed to be carried out using reduced samples in the form of steel plates with dimensions of 500×500×5 mm. Based on the proposed models, a calculation and experimental method for estimating the fire resistance of steel structures, as well as an algorithm and procedures for its implementation have been developed. The verification of the efficiency of the proposed method was carried out in the ANSYS software package using the aged coating “Phoenix STS” and the coating “Amotherm Steel Wb” under heating conditions at the temperature of the hydrocarbon fire.

The reliability of the developed models and methods is checked. It is established that random errors in temperature measurement significantly affect the accuracy of determining the thermophysical characteristics and limits of fire resistance. In general, the efficiency of the proposed calculation and experimental methods with sufficient accuracy for engineering calculations is confirmed.

ISBN 978-617-7319-43-5 (on-line)
ISBN 978-617-7319-42-8 (print)

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How to Cite: Sadkovyi, V., Andronov, V., Semkiv, O., Kovalov, A., Rybka, E., Otrosh, Yu. et. al.;  Sadkovyi, V., Rybka, E., Otrosh, Yu. (Eds.) (2021). Fire resistance of reinforced concrete and steel structures. Kharkiv: РС ТЕСHNOLOGY СЕNTЕR, 180. doi: http://doi.org/10.15587/978-617-7319-43-5

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Indexing:

dimen_(1).png ResearchGate_1.png scilit  b1.jpg ouci.jpg imgonline-com-ua-resize-etf8w8xuwvh1.jpg arch  imgonline-com-ua-resize-2bgnuvtyy8h.jpg Zenodo451.png openaire45.png engpaper imgonline-com-ua-Resize-zpY9TwRGwS9w1.png imgonline-com-ua-Resize-8lhbZm409l.jpg tib.png  scopus.png mend.jpg

Author Biographies

Volodymyr Sadkovyi, National University of Civil Defence of Ukraine

Doctor of Science in Public Administration, Professor, Rector
ID ORCID   https://orcid.org/0000-0001-7054-671X

Volodymyr Andronov, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor, Vice Rector on Scientific Work
Research Center
ID ORCID   https://orcid.org/0000-0001-7486-482X

Oleg Semkiv, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Associate Professor, Vice Rector
Department of Surveillance and Preventive Activities
ID ORCID   https://orcid.org/0000-0002-9347-0997

Andrii Kovalov, National University of Civil Defence of Ukraine

PhD, Senior Researcher
ID ORCID   https://orcid.org/0000-0002-6525-7558

Evgenіy Rybka, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Senior Researcher
Research Center
ID ORCID   https://orcid.org/0000-0002-5396-5151
Corresponding author:
Mail to e.a.ribka@gmail.com

Yurii Otrosh, National University of Civil Defence of Ukraine

Doctor of Technical Sciences, Professor
Department of Fire Prevention in Settlements
ID ORCID   https://orcid.org/0000-0003-0698-2888

Mykola Udianskyi, National University of Civil Defence of Ukraine

PhD, Associate Professor
Faculty of Civil Defence
ID ORCID   https://orcid.org/0000-0001-5107-936X

Volodymyr Koloskov, National University of Civil Defence of Ukraine

PhD, Associate Professor
Department of Applied Mechanics and Environmental Protection Technologies
ID ORCID   https://orcid.org/0000-0002-9844-1845

Alexander Danilin, National University of Civil Defence of Ukraine

PhD, Assistant Professor
Department of Supervisory and Preventive Activities
ID ORCID   https://orcid.org/0000-0002-4474-7179

Pavlo Kovalov, National University of Civil Defence of Ukraine

PhD, Associate Professor
Department of Fire and Rescue Training
ID ORCID   https://orcid.org/0000-0002-2817-5393

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Sadkovyi, V., Andronov, V., Semkiv, O., Kovalov, A., Rybka, E., Otrosh, Y., Udianskyi, M., Koloskov, V., Danilin, A., & Kovalov, P. (2021). FIRE RESISTANCE OF REINFORCED CONCRETE AND STEEL STRUCTURES. Kharkiv: TECHNOLOGY CENTER PC. https://doi.org/10.15587/978-617-7319-43-5