About: Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	V článku jsou zmíněny obecné problémy a myšlenky verifikace spolehlivosti návrhu konstrukce dle konceptu norem EUROCODES. Cílem článku je pravděpodobnostní analýza mezního stavu únosnosti ocelové vzpěry navržené dle UROCODE 3. Metodou Monte Carlo je vyhodnocena závislosti mezi pravděpodobností poruchy a součinitelem vyjadřujícím poměr mezi stálým a dlouhodobým nahodilým zatížením. Nevyrovnanost pravděpodobnosti poruchy dle ukazatelů spolehlivosti a postupů normy EN1990 je analyzována. Počáteční imperfekce jsou uvažovány jako náhodné veličiny a náhodná pole. Je analyzován vliv velikosti a tvaru počátečního zakřivení na únosnost. Pravděpodobnostní analýza je doplněna fuzzy analýzou vlivu neurčitostí, které nejsou stochastické povahy na pravděpodobnost poruchy. (cs) General ideas and problems of probability approach and its utilization in the verification of structural design procedures of EUROCODES are mentioned. The paper is aimed at the probability study of the ultimate limit state of a steel compressed member designed economically according to EUROCODE 3. The theoretical failure probability (reliability index) vs. ratio of permanent to variable load action is calculated by means of the Monte Carlo simulation method. The misalignment of the failure probability according to EN1990 is analyzed. Initial imperfections are generally considered as random variables and random fields. The nonlinear beam FEM is used. The influence of initial curvature shape and size variability of the member axis on the variability of load-carrying capacity is investigated. The probabilistic analysis is supplemented with the fuzzy analysis of the influence of uncertainties on the failure probability. General ideas and problems of probability approach and its utilization in the verification of structural design procedures of EUROCODES are mentioned. The paper is aimed at the probability study of the ultimate limit state of a steel compressed member designed economically according to EUROCODE 3. The theoretical failure probability (reliability index) vs. ratio of permanent to variable load action is calculated by means of the Monte Carlo simulation method. The misalignment of the failure probability according to EN1990 is analyzed. Initial imperfections are generally considered as random variables and random fields. The nonlinear beam FEM is used. The influence of initial curvature shape and size variability of the member axis on the variability of load-carrying capacity is investigated. The probabilistic analysis is supplemented with the fuzzy analysis of the influence of uncertainties on the failure probability. (en)
Title	Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty (en) Stabilitní problémy ocelové konstrukce v přítomnosti stochastické a fuzzy neurčitosti (cs)
skos:prefLabel	Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty Stability Problems of Steel Structures in the Presence of Stochastic and Fuzzy Uncertainty (en) Stabilitní problémy ocelové konstrukce v přítomnosti stochastické a fuzzy neurčitosti (cs)
skos:notation	RIV/00216305:26110/07:PU71661!RIV08-AV0-26110___
http://linked.open.../vavai/riv/strany	861-865
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA103/05/2059), P(GA103/07/1067), P(KJB201720602)
http://linked.open...iv/cisloPeriodika	10-11
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Kala, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	451973
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/07:PU71661
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Standard, steel, reliability, buckling, fuzzy, simulation (en)
http://linked.open.../riv/klicoveSlovo	buckling Standard reliability simulation steel fuzzy
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[9E654DB66B89]
http://linked.open...i/riv/nazevZdroje	THIN-WALLED STRUCTURES
http://linked.open...in/vavai/riv/obor	JM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	The limit states and reliability of advanced civil engineering structures Identification and modeling of uncertainty in design of steel structures The influence of imperfections on the behaviour indeterminateness of steel structures
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	45
http://linked.open...iv/tvurceVysledku	Kala, Zdeněk
issn	0263-8231
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26110

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