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Predicting the Geometric Shape of the Cross-Section of Fire Retardant Wooden Beams under Conditions of Fire

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Abstract:

The article presents the results of the depth of charring of wooden beams with fire-retardant cladding with OSB plates and fire-retardant plywood during fire tests under standard temperature conditions. The aim of the work was to identify changes in the geometric parameters of the charring zone of a wooden beam as a basis for calculating the design data for the strength of these beams. To achieve the aim, the following tasks were set: to determine that the contours of the charred zone in the cross-sections of wooden beams with fire-retardant cladding can be described using isotherms with a critical temperature of charring initiation; to develop a method for mathematically describing the geometric shape of the charring zone in the cross-section of the beam by approximating the contour lines of this zone using Bézier lines.

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Periodical:

Advances in Science and Technology (Volume 170)

Pages:

101-108

DOI:

https://doi.org/10.4028/p-5tvB1d

Citation:

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Online since:

November 2025

Authors:

Serhii Pozdieiev, Alina Novhorodchenko*, Mykola Zmaha, Vitaly Novhorodchenko

Keywords:

Fire-Retardant Cladding, Fire-Retardant Plywood, OSB Plates, Wooden Beams

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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