Identification of variation coefficient of equivalent stress range of steel girders with cracks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F19%3A10242905" target="_blank" >RIV/61989100:27120/19:10242905 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/19:PU133239

Výsledek na webu

<a href="http://naun.org/cms.action?id=19940" target="_blank" >http://naun.org/cms.action?id=19940</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Identification of variation coefficient of equivalent stress range of steel girders with cracks

Popis výsledku v původním jazyce

A steel bridge in operation is subjected to multiple variable stress range spectrum from the passage of axles of vehicles of different weights. The fatigue reliability assessment of steel bridges can be performed using the equivalent stress range, which is converted from the variable stress range spectrum. The paper presents a case study of the identification of the coefficient of variation of the equivalent stress range of steel girders. The histogram of equivalent stress range is statistically evaluated with consideration to uncertainties resulting from the statistical evaluation of the histogram of stress range spectrum from field monitoring. It is shown that the equivalent stress range can be rationally considered as a random variable with Gauss probability density function with coefficient of variation of 0.1. The case study is evaluated using the Latin Hypercube Sampling statistical method. The results are exploitable in the probabilistic analyses of reliability and lifetime of bridges using linear elastic fracture mechanics.

Název v anglickém jazyce

Identification of variation coefficient of equivalent stress range of steel girders with cracks

Popis výsledku anglicky

A steel bridge in operation is subjected to multiple variable stress range spectrum from the passage of axles of vehicles of different weights. The fatigue reliability assessment of steel bridges can be performed using the equivalent stress range, which is converted from the variable stress range spectrum. The paper presents a case study of the identification of the coefficient of variation of the equivalent stress range of steel girders. The histogram of equivalent stress range is statistically evaluated with consideration to uncertainties resulting from the statistical evaluation of the histogram of stress range spectrum from field monitoring. It is shown that the equivalent stress range can be rationally considered as a random variable with Gauss probability density function with coefficient of variation of 0.1. The case study is evaluated using the Latin Hypercube Sampling statistical method. The results are exploitable in the probabilistic analyses of reliability and lifetime of bridges using linear elastic fracture mechanics.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

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

2019

Kód důvěrnosti údajů

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

Název periodika

International Journal of Mechanics

ISSN

1998-4448

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

2019

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

69-78

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85073278885