Effort of the protective structure of the shelter under the influence of an external fire

The paper presents a numerical analysis carried out to determine the influence of the ground surface fire on the strain level of shelter housing with the ground cover. It is assumed that the underground shelter is longitudinal and the fire spans on an extensive area. The area surrounding the housing...

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Main Author: Adam Baryłka
Format: Article
Language:English
Published: Polish Academy of Sciences 2021-07-01
Series:Archive of Mechanical Engineering
Subjects:
Online Access:https://journals.pan.pl/Content/120281/PDF/AME_2021_137047.pdf
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author Adam Baryłka
author_facet Adam Baryłka
author_sort Adam Baryłka
collection DOAJ
description The paper presents a numerical analysis carried out to determine the influence of the ground surface fire on the strain level of shelter housing with the ground cover. It is assumed that the underground shelter is longitudinal and the fire spans on an extensive area. The area surrounding the housing was treated as a material with average constant thermodynamic values. The heating and cooling processes were described on the basis of the Fourier’s equation concerning heat conduction in consideration on material, ground and concrete heterogeneous nature. The numeric analysis was carried out in two stages. In the first stage, a quasi-stationary initial temperature distribution was sought in the ground centre and shelter shield. In the second stage of analysis, the fire effect was considered according to the time profile of temperature variation in object.
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spelling doaj.art-63be457cbd524e2293c0d8b67c74de782022-12-22T03:41:46ZengPolish Academy of SciencesArchive of Mechanical Engineering2300-18952021-07-01vol. 68No 2183193https://doi.org/10.24425/ame.2021.137047Effort of the protective structure of the shelter under the influence of an external fireAdam Baryłka0https://orcid.org/0000-0002-0181-6226Centre of Construction Expertise, Warsaw, PolandThe paper presents a numerical analysis carried out to determine the influence of the ground surface fire on the strain level of shelter housing with the ground cover. It is assumed that the underground shelter is longitudinal and the fire spans on an extensive area. The area surrounding the housing was treated as a material with average constant thermodynamic values. The heating and cooling processes were described on the basis of the Fourier’s equation concerning heat conduction in consideration on material, ground and concrete heterogeneous nature. The numeric analysis was carried out in two stages. In the first stage, a quasi-stationary initial temperature distribution was sought in the ground centre and shelter shield. In the second stage of analysis, the fire effect was considered according to the time profile of temperature variation in object.https://journals.pan.pl/Content/120281/PDF/AME_2021_137047.pdfexcavation shelterfirenumerical analysispart-time processes
spellingShingle Adam Baryłka
Effort of the protective structure of the shelter under the influence of an external fire
Archive of Mechanical Engineering
excavation shelter
fire
numerical analysis
part-time processes
title Effort of the protective structure of the shelter under the influence of an external fire
title_full Effort of the protective structure of the shelter under the influence of an external fire
title_fullStr Effort of the protective structure of the shelter under the influence of an external fire
title_full_unstemmed Effort of the protective structure of the shelter under the influence of an external fire
title_short Effort of the protective structure of the shelter under the influence of an external fire
title_sort effort of the protective structure of the shelter under the influence of an external fire
topic excavation shelter
fire
numerical analysis
part-time processes
url https://journals.pan.pl/Content/120281/PDF/AME_2021_137047.pdf
work_keys_str_mv AT adambaryłka effortoftheprotectivestructureoftheshelterundertheinfluenceofanexternalfire