Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.

Typical underground water storage facilities consist of reinforced concrete tanks and pipes. Although methods of their analysis are well developed, the use of these methods does not always give unambiguous results, as presented in the paper. An example of underground tank is considered in which cyli...

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Main Authors: Roman Wróblewski, Janusz Kozubal
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6319736?pdf=render
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author Roman Wróblewski
Janusz Kozubal
author_facet Roman Wróblewski
Janusz Kozubal
author_sort Roman Wróblewski
collection DOAJ
description Typical underground water storage facilities consist of reinforced concrete tanks and pipes. Although methods of their analysis are well developed, the use of these methods does not always give unambiguous results, as presented in the paper. An example of underground tank is considered in which cylindrical roof collapsed during construction under soil and excavator loads. The causes of failure are investigated with deterministic and stochastic models. In the first step nonlinear finite element analysis including soil-structure interaction was performed to examine overall level of the structural safety, which was found satisfactory thus not explaining the collapse. In the second step an analytical stochastic model was developed and analysed with emphasis to sensitivity. The last analysis explained the collapse as a complex of unfavourable states for considered variables and the failure was recognised as a mixed construction-geotechnical-structural problem. The key role played backfill properties and its depth.
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spelling doaj.art-67c10bd1ac94484aab56c316a053264b2022-12-22T02:01:16ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01141e020991610.1371/journal.pone.0209916Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.Roman WróblewskiJanusz KozubalTypical underground water storage facilities consist of reinforced concrete tanks and pipes. Although methods of their analysis are well developed, the use of these methods does not always give unambiguous results, as presented in the paper. An example of underground tank is considered in which cylindrical roof collapsed during construction under soil and excavator loads. The causes of failure are investigated with deterministic and stochastic models. In the first step nonlinear finite element analysis including soil-structure interaction was performed to examine overall level of the structural safety, which was found satisfactory thus not explaining the collapse. In the second step an analytical stochastic model was developed and analysed with emphasis to sensitivity. The last analysis explained the collapse as a complex of unfavourable states for considered variables and the failure was recognised as a mixed construction-geotechnical-structural problem. The key role played backfill properties and its depth.http://europepmc.org/articles/PMC6319736?pdf=render
spellingShingle Roman Wróblewski
Janusz Kozubal
Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
PLoS ONE
title Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
title_full Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
title_fullStr Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
title_full_unstemmed Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
title_short Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application.
title_sort finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application
url http://europepmc.org/articles/PMC6319736?pdf=render
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AT januszkozubal finiteelementandanalyticalstochasticmodelsforassessmentofundergroundreinforcedconcretewaterstoragefacilitiesandresultsoftheirapplication