Fragility analysis of concrete elevated water tanks under seismic loads

The design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently...

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Autores principales:	Hocine Hammoum, Amar Aliche, Karima Bouzelha, Younes Aoues, Ouali Amiri, Youcef Mehani
Formato:	article
Lenguaje:	EN
Publicado:	Gruppo Italiano Frattura 2021
Materias:	Reliability Seismic acceleration Hydraulic load Failure Concrete elevated tanks Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
Acceso en línea:	https://doaj.org/article/0ae5a6ecb9a348a9b928e4aed7844ae1
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spelling	oai:doaj.org-article:0ae5a6ecb9a348a9b928e4aed7844ae12021-11-26T10:56:41ZFragility analysis of concrete elevated water tanks under seismic loads1971-8993https://doaj.org/article/0ae5a6ecb9a348a9b928e4aed7844ae12021-06-01T00:00:00Zhttps://www.fracturae.com/index.php/fis/article/view/3056https://doaj.org/toc/1971-8993 The design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently safe design. However, this approach does not allow rational evaluation of the risk related to the structural failure and consequently its reliability. In fact, the partial safety factors can lead to over-designed structures; or to under designed structural components leading to a lack of structural robustness. In this study, a probabilistic approach based on Monte Carlo simulations is used to analyze the reliability of elevated water tanks submitted to hazard seismic loading. This reliability approach, takes into account mainly two parameters. Firstly, the hydraulic charge in the tank container which is a function of time, and secondly, the hazard seismic loading through the Peak Ground Acceleration is considered as a random variable. Fragility curves depending on seismic zones and soil types are obtained by using the probabilistic approach, where they demonstrate the dominant failure modes that can cause the structural failure with respect to different seismic levels, soil types and water height level in the tank container. Hocine HammoumAmar AlicheKarima BouzelhaYounes AouesOuali AmiriYoucef MehaniGruppo Italiano FratturaarticleReliabilitySeismic accelerationHydraulic loadFailureConcrete elevated tanksMechanical engineering and machineryTJ1-1570Structural engineering (General)TA630-695ENFrattura ed Integrità Strutturale, Vol 15, Iss 57 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Reliability Seismic acceleration Hydraulic load Failure Concrete elevated tanks Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
spellingShingle	Reliability Seismic acceleration Hydraulic load Failure Concrete elevated tanks Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695 Hocine Hammoum Amar Aliche Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani Fragility analysis of concrete elevated water tanks under seismic loads
description	The design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently safe design. However, this approach does not allow rational evaluation of the risk related to the structural failure and consequently its reliability. In fact, the partial safety factors can lead to over-designed structures; or to under designed structural components leading to a lack of structural robustness. In this study, a probabilistic approach based on Monte Carlo simulations is used to analyze the reliability of elevated water tanks submitted to hazard seismic loading. This reliability approach, takes into account mainly two parameters. Firstly, the hydraulic charge in the tank container which is a function of time, and secondly, the hazard seismic loading through the Peak Ground Acceleration is considered as a random variable. Fragility curves depending on seismic zones and soil types are obtained by using the probabilistic approach, where they demonstrate the dominant failure modes that can cause the structural failure with respect to different seismic levels, soil types and water height level in the tank container.
format	article
author	Hocine Hammoum Amar Aliche Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani
author_facet	Hocine Hammoum Amar Aliche Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani
author_sort	Hocine Hammoum
title	Fragility analysis of concrete elevated water tanks under seismic loads
title_short	Fragility analysis of concrete elevated water tanks under seismic loads
title_full	Fragility analysis of concrete elevated water tanks under seismic loads
title_fullStr	Fragility analysis of concrete elevated water tanks under seismic loads
title_full_unstemmed	Fragility analysis of concrete elevated water tanks under seismic loads
title_sort	fragility analysis of concrete elevated water tanks under seismic loads
publisher	Gruppo Italiano Frattura
publishDate	2021
url	https://doaj.org/article/0ae5a6ecb9a348a9b928e4aed7844ae1
work_keys_str_mv	AT hocinehammoum fragilityanalysisofconcreteelevatedwatertanksunderseismicloads AT amaraliche fragilityanalysisofconcreteelevatedwatertanksunderseismicloads AT karimabouzelha fragilityanalysisofconcreteelevatedwatertanksunderseismicloads AT younesaoues fragilityanalysisofconcreteelevatedwatertanksunderseismicloads AT oualiamiri fragilityanalysisofconcreteelevatedwatertanksunderseismicloads AT youcefmehani fragilityanalysisofconcreteelevatedwatertanksunderseismicloads
_version_	1718409516987449344

Fragility analysis of concrete elevated water tanks under seismic loads

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