Recommendations for modifying concrete fatigue assessments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00366451" target="_blank" >RIV/68407700:21110/23:00366451 - 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

Recommendations for modifying concrete fatigue assessments

Popis výsledku v původním jazyce

The article deals with a research of fatigue resistance of concrete structures. So far, results of theoretical assessment of fatigue of concrete are often negative - especially for existing railway bridges - although the structures do not have damages, which could be caused by fatigue of concrete. To eliminate these differencies, the following reasearch was initiated. Based on ist results, two recommendations for modifying the existing procedures for assessment of the fatigue resistance of concrete were developed, which are presented in this paper. The first recommendation is to establish an equivalent train, which would better represent the actual fatigue loads. The second recommendation is to determine the fatigue resistance of concrete by using a numerical parameterization of Wöhler curves. The procedure is based on use of experimentally determined Wöhler curves and their subsequent parameterisation using four coefficients. The calculation results in the number of stress cycles needed for fatigue failure of the structure.

Název v anglickém jazyce

Recommendations for modifying concrete fatigue assessments

Popis výsledku anglicky

The article deals with a research of fatigue resistance of concrete structures. So far, results of theoretical assessment of fatigue of concrete are often negative - especially for existing railway bridges - although the structures do not have damages, which could be caused by fatigue of concrete. To eliminate these differencies, the following reasearch was initiated. Based on ist results, two recommendations for modifying the existing procedures for assessment of the fatigue resistance of concrete were developed, which are presented in this paper. The first recommendation is to establish an equivalent train, which would better represent the actual fatigue loads. The second recommendation is to determine the fatigue resistance of concrete by using a numerical parameterization of Wöhler curves. The procedure is based on use of experimentally determined Wöhler curves and their subsequent parameterisation using four coefficients. The calculation results in the number of stress cycles needed for fatigue failure of the structure.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Young Engineers Colloquium Dresden 2023

ISBN

978-3-85748-193-2

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

14-15

Název nakladatele

IABSE Colloqium

Místo vydání

Berlin

Místo konání akce

Dresden

Datum konání akce

30. 5. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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