Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Wróblewski, Roman, Kozubal, Janusz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6319736/
https://www.ncbi.nlm.nih.gov/pubmed/30608956
http://dx.doi.org/10.1371/journal.pone.0209916
_version_ 1783385117216997376
author Wróblewski, Roman
Kozubal, Janusz
author_facet Wróblewski, Roman
Kozubal, Janusz
author_sort Wróblewski, Roman
collection PubMed
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.
format Online
Article
Text
id pubmed-6319736
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-63197362019-01-19 Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application Wróblewski, Roman Kozubal, Janusz PLoS One Research Article 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. Public Library of Science 2019-01-04 /pmc/articles/PMC6319736/ /pubmed/30608956 http://dx.doi.org/10.1371/journal.pone.0209916 Text en © 2019 Wróblewski, Kozubal http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Wróblewski, Roman
Kozubal, Janusz
Finite element and analytical stochastic models for assessment of underground reinforced concrete water storage facilities and results of their application
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
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6319736/
https://www.ncbi.nlm.nih.gov/pubmed/30608956
http://dx.doi.org/10.1371/journal.pone.0209916
work_keys_str_mv AT wroblewskiroman finiteelementandanalyticalstochasticmodelsforassessmentofundergroundreinforcedconcretewaterstoragefacilitiesandresultsoftheirapplication
AT kozubaljanusz finiteelementandanalyticalstochasticmodelsforassessmentofundergroundreinforcedconcretewaterstoragefacilitiesandresultsoftheirapplication