Evaluation of Safety Formats for Structural Assessment Based on Nonlinear Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F18%3A00321630" target="_blank" >RIV/68407700:21610/18:00321630 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/28399269:_____/18:N0000005

Výsledek na webu

<a href="https://www.researchgate.net/publication/324389439_Evaluation_of_Safety_Formats_for_Structural_Assessment_Based_on_Nonlinear_Analysis" target="_blank" >https://www.researchgate.net/publication/324389439_Evaluation_of_Safety_Formats_for_Structural_Assessment_Based_on_Nonlinear_Analysis</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1201/9781315182964-80" target="_blank" >10.1201/9781315182964-80</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of Safety Formats for Structural Assessment Based on Nonlinear Analysis

Popis výsledku v původním jazyce

fib Model Code 2010 introduced for the first time a comprehensive system for the treatment of safety and uncertainty for structural assessment and design based by nonlinear analysis. The paper analyzes a selected example from the literature with shear failure when two different failure modes are observed depending on the choice of material parameters. This issue is critical for the global assessment by nonlinear analysis since it often involves assumptions about the statistical distribution of structural strength. When different failure modes are involved, i.e. by steel yielding or concrete failure, these assumptions may not be valid and the calculated design strength may not be on the safe side. The influence of different failure modes on the struc-tural strength is evaluated mainly for the ECOV method, where the assumption of log-normal distribution is used. The global assessment by nonlinear analysis is compared with the analytical solutions based on standard Eurocode and Model Code 2010 shear formulas. The results show that even though the ECOV methods pro-vides higher design strength values, the difference is not significant especially if one takes into account the overall uncertainties involved in reinforced concrete analysis and design.

Název v anglickém jazyce

Evaluation of Safety Formats for Structural Assessment Based on Nonlinear Analysis

Popis výsledku anglicky

fib Model Code 2010 introduced for the first time a comprehensive system for the treatment of safety and uncertainty for structural assessment and design based by nonlinear analysis. The paper analyzes a selected example from the literature with shear failure when two different failure modes are observed depending on the choice of material parameters. This issue is critical for the global assessment by nonlinear analysis since it often involves assumptions about the statistical distribution of structural strength. When different failure modes are involved, i.e. by steel yielding or concrete failure, these assumptions may not be valid and the calculated design strength may not be on the safe side. The influence of different failure modes on the struc-tural strength is evaluated mainly for the ECOV method, where the assumption of log-normal distribution is used. The global assessment by nonlinear analysis is compared with the analytical solutions based on standard Eurocode and Model Code 2010 shear formulas. The results show that even though the ECOV methods pro-vides higher design strength values, the difference is not significant especially if one takes into account the overall uncertainties involved in reinforced concrete analysis and design.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-04132S" target="_blank" >GA16-04132S: Epistemické nejistoty modelů trhlin v železobetonových konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Computational Modelling of Concrete Structures

ISBN

978-1-138-74117-1

ISSN

—

e-ISSN

—

Počet stran výsledku

10

Strana od-do

669-678

Název nakladatele

CRC Press

Místo vydání

Boca Raton

Místo konání akce

Bad Hofgastein

Datum konání akce

26. 2. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000461335800080