Statistical and sensitivity analyses of prestressed concrete girders failing in shear

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU125874" target="_blank" >RIV/00216305:26110/17:PU125874 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Statistical and sensitivity analyses of prestressed concrete girders failing in shear

Popis výsledku v původním jazyce

A complex approach to probabilistic analysis and design of precast pre-stressed concrete girders failing in shear is presented. Experimental studies have been performed on full scale prestressed concrete roof elements and scaled laboratory tested elements, they served as basis for deterministic nonlinear modelling with model updating of precast members and subsequent probabilistic evaluation of structural response variability. The results are used as thresholds for loading of produced structural elements and probabilistic design procedure as less conservative method compared to classical partial safety factor based design and alternative ECOV method. An important task in structural reliability analysis is to determine the significance of basic random variables. Two alternative approaches are utilized: Nonparametric rank-order sensitivity and analysis based on partial coefficient of variation. These methods were applied and compared for precast prestressed concrete girders. Such an information was used for proper set up of stochastic model and response surfaces and subsequent determination of selected uncertain design parameters followed by load-bearing capacity and reliability assessment.

Název v anglickém jazyce

Statistical and sensitivity analyses of prestressed concrete girders failing in shear

Popis výsledku anglicky

A complex approach to probabilistic analysis and design of precast pre-stressed concrete girders failing in shear is presented. Experimental studies have been performed on full scale prestressed concrete roof elements and scaled laboratory tested elements, they served as basis for deterministic nonlinear modelling with model updating of precast members and subsequent probabilistic evaluation of structural response variability. The results are used as thresholds for loading of produced structural elements and probabilistic design procedure as less conservative method compared to classical partial safety factor based design and alternative ECOV method. An important task in structural reliability analysis is to determine the significance of basic random variables. Two alternative approaches are utilized: Nonparametric rank-order sensitivity and analysis based on partial coefficient of variation. These methods were applied and compared for precast prestressed concrete girders. Such an information was used for proper set up of stochastic model and response surfaces and subsequent determination of selected uncertain design parameters followed by load-bearing capacity and reliability assessment.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

12th International Conference on Structural Safety & Reliability (ICOSSAR 2017)

ISBN

978-3-903024-28-1

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

1793-1802

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Vienna

Datum konání akce

6. 8. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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