Application of uncertainty analysis to stability problems of steel-concrete structural members

The paper deals with the fuzzy analysis of the ultimate limit state of a steel strut with an encased web in compression. The first part of the paper lists presumptions required for the determination of the theoretical load carrying capacity for the column. Stresses in the concrete and steel section...

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Main Authors: Libor Puklický, Zdeněk Kala
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2009-05-01
Series:Engineering Structures and Technologies
Subjects:
Online Access:https://www.bme.vgtu.lt/index.php/EST/article/view/7532
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spelling doaj-907dec6edbb2449194dfb8950f4169f52021-07-02T13:52:59ZengVilnius Gediminas Technical UniversityEngineering Structures and Technologies2029-882X2029-88382009-05-011110.3846/skt.2009.05Application of uncertainty analysis to stability problems of steel-concrete structural membersLibor Puklický0Zdeněk Kala1Brno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří Str. 95, 602 00, Brno, Czech RepublicBrno University of Technology, Faculty of Civil Engineering, Institute of Structural Mechanics, Veveří Str. 95, 602 00, Brno, Czech Republic The paper deals with the fuzzy analysis of the ultimate limit state of a steel strut with an encased web in compression. The first part of the paper lists presumptions required for the determination of the theoretical load carrying capacity for the column. Stresses in the concrete and steel sections are determined according to the principles of elasticity. The ultimate limit state is given as the limit stress attained in the most stressed section of either the steel or concrete section. A general extended principle, which takes into account the epistemic uncertainty of input parameters, was utilized for the conducted analysis. Neapibrėžtumo analizės taikymas plienbetonio konstrukcinių elementų stabilumo uždaviniuose Santrauka Straipsnyje nagrinėjamas plienbetonio konstrukcinių elementų stipris remiantis fuzzy analize. Pirmoje straipsnio dalyje aprašomos prielaidos, reikalingos teoriniam kolonos laikomosios galios nustatymui. Itempiai plieniniuose ir betoniniuose skerspjūviuose nustatomi pagal tamprumo teorijos principus. Ribinis pavojingiausio pjūvio būvis pasiekiamas tada, kai įtempiai pasiekia ribinių įtempių reikšmes plieno apvalkale arba betono užpilde. Analizei buvo pasitelktas išplėstinis principas, kuris įvertina pradinių parametrų „epistematinį“ neapibrėžtuma. First Published Online: 16 May 2013 Reikšminiai žodžiai: plienas, betonas, konstrukcija, projektavimas, tvirtumas, fuzzy, yda. https://www.bme.vgtu.lt/index.php/EST/article/view/7532steelconcretestructuredesignreliabilityrandom
collection DOAJ
language English
format Article
sources DOAJ
author Libor Puklický
Zdeněk Kala
spellingShingle Libor Puklický
Zdeněk Kala
Application of uncertainty analysis to stability problems of steel-concrete structural members
Engineering Structures and Technologies
steel
concrete
structure
design
reliability
random
author_facet Libor Puklický
Zdeněk Kala
author_sort Libor Puklický
title Application of uncertainty analysis to stability problems of steel-concrete structural members
title_short Application of uncertainty analysis to stability problems of steel-concrete structural members
title_full Application of uncertainty analysis to stability problems of steel-concrete structural members
title_fullStr Application of uncertainty analysis to stability problems of steel-concrete structural members
title_full_unstemmed Application of uncertainty analysis to stability problems of steel-concrete structural members
title_sort application of uncertainty analysis to stability problems of steel-concrete structural members
publisher Vilnius Gediminas Technical University
series Engineering Structures and Technologies
issn 2029-882X
2029-8838
publishDate 2009-05-01
description The paper deals with the fuzzy analysis of the ultimate limit state of a steel strut with an encased web in compression. The first part of the paper lists presumptions required for the determination of the theoretical load carrying capacity for the column. Stresses in the concrete and steel sections are determined according to the principles of elasticity. The ultimate limit state is given as the limit stress attained in the most stressed section of either the steel or concrete section. A general extended principle, which takes into account the epistemic uncertainty of input parameters, was utilized for the conducted analysis. Neapibrėžtumo analizės taikymas plienbetonio konstrukcinių elementų stabilumo uždaviniuose Santrauka Straipsnyje nagrinėjamas plienbetonio konstrukcinių elementų stipris remiantis fuzzy analize. Pirmoje straipsnio dalyje aprašomos prielaidos, reikalingos teoriniam kolonos laikomosios galios nustatymui. Itempiai plieniniuose ir betoniniuose skerspjūviuose nustatomi pagal tamprumo teorijos principus. Ribinis pavojingiausio pjūvio būvis pasiekiamas tada, kai įtempiai pasiekia ribinių įtempių reikšmes plieno apvalkale arba betono užpilde. Analizei buvo pasitelktas išplėstinis principas, kuris įvertina pradinių parametrų „epistematinį“ neapibrėžtuma. First Published Online: 16 May 2013 Reikšminiai žodžiai: plienas, betonas, konstrukcija, projektavimas, tvirtumas, fuzzy, yda.
topic steel
concrete
structure
design
reliability
random
url https://www.bme.vgtu.lt/index.php/EST/article/view/7532
work_keys_str_mv AT liborpuklicky applicationofuncertaintyanalysistostabilityproblemsofsteelconcretestructuralmembers
AT zdenekkala applicationofuncertaintyanalysistostabilityproblemsofsteelconcretestructuralmembers
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