Studies on the impact of external fire on the lye of the shelter housing

• Autorzy: Baryłka A.

Identyfikatory

DOI

10.5604/01.3001.0015.5855

• Języki publikacji: EN

Abstrakty

EN

Purpose: The presented article presents a numerical analysis carried out to determine the impact of an external fire taking place on the surface of the ground on the level of stress of the trench shelter casing protected by a layer of soil. Design/methodology/approach: Numerical analysis was carried out in two stages. In the first stage, a quasi-stationary distribution of the initial temperature in the centre of the ground and the shelter casing was sought. In the second stage of the analysis, the effect of the fire was considered according to the profile of time changes in the temperature of the shelter object. Findings: We assume that the trench shelter is in an oblong shape, and the fire extends over a vast area. The area surrounding the shelter casing was treated as a material with average constant thermodynamic values. Research limitations/implications: The process related to heating and cooling the enclosure was described on the basis of the Fourier equation on heat conduction in terms of the heterogeneous nature of the material, primer and concrete. Practical implications: The use of the trench shelter model as a research element in the design of special objects. Originality/value: The methods of non-stationary temperature flow through the ground and the shelter casing used, allows for a very realistic indication of how the housing will behave under the influence of high temperature caused by an external fire. The article can be useful for designers who design underground shelters.

Słowa kluczowe

EN

excavation shelter; part-time process; fire; numerical analysis

PL

schron wykopowy; proces w niepełnym wymiarze godzin; pożar; ogień; analiza numeryczna

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2021
• Tom: Vol. 109, nr 1
• Strony: 11--16
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Baryłka A.

• Scientific Institute of Engineering of The Safety of Anthropogenic Objects, ul. Obozowa 82A/19, 01-434 Warszawa, Poland

• https://orcid.org/0000-0002-0181-6226

Bibliografia

• [1] A. Dorsz, A. Rusowicz, A. Prawdzik, Comparative analysis of assumptions for numerical simulation of the effects of fire - safety of evacuation from the building structure, Safety Engineering of Anthropogenic Objects 4 (2020) 1-15. DOI: https://doi.org/10.37105/iboa.89
• [2] T. Molkens, B. Rossi, On the Simulation of Real Fire for Post Fire Resistance Evaluation of Steel Structures, Fire Technology 57 (2021) 839-871. DOI: https://doi.org/10.1007/s10694-020-01025-6
• [3] PN-EN:1991-1-2:2006/AC, Actions on structures exposed to fire, PKN, Warsaw, 2013 (in Polish).
• [4] A. Baryłka, J. Obolewicz, Technical diagnosis as an important engineering tool of electrical power facilities, The Energy Market Journal 6(151) (2020) 65-70.
• [5] M. Owczarek, A. Baryłka, Estimation of thermal diffusivity of building elements based on temperaturę measurement for periodically changing boundary conditions, The Energy Market Journal 5(144) (2019) 55-59.
• [6] A. Baryłka, D. Tomaszewicz, Influence of measuring deviations of the components of layered walls on their durability, Safety Engineering of Anthropogenic Objects 3 (2020) 155-162. DOI: https://doi.org/10.37105/iboa.75
• [7] Z. Garncarek, J. Idzik, Degree of heterogeneity of thermal field a method of evaluation, International Journal of Heat and Mass Transfer 35/11 (1992) 2769-2775. DOI: https://doi.org/10.1016/0017-9310(92)90297-6
• [8] R. Chmielewski, A. Baryłka, J. Obolewicz, Analysis of design solutions for strengthening the load-bearing structure of a building for further safe use, Journal of Achievements in Materials and Manufacturing Engineering 104/1 (2021) 5-10. DOI: https://doi.org/10.5604/01.3001.0014.8481
• [9] A. Baryłka, The impact of fire on changing the strength of the underground shelter structure, The Energy Market Journal 1(146) (2020) 71-75.
• [10] E. Kostowski, Heat flow, Silesian University of Technology Publishing House, Gliwice, 2000 (in Polish).
• [11] R. Chmielewski, A. Baryłka, J. Obolewicz, The impact of design and executive errors affecting the damage to the floor of the concert hall, Journal of Achievements in Materials and Manufacturing Engineering 104/2 (2021) 49-56. DOI: https://doi.org/10.5604/01.3001.0014.8488
• [12] A. Baryłka, The issue of the fitness of buildings for use in the issues of safety engineering of these objects, Safety Engineering of Anthropogenic Objects 4 (2019) 1-11 (in Polish). DOI: https://doi.org/10.37105/iboa.31

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).