Uncertainties in Crack Width Verification of Reinforced Concrete Structures

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Uncertainties in Crack Width Verification of Reinforced Concrete Structures

Popis výsledku v původním jazyce

The reliability of reinforced concrete structures designed according to Eurocodes with respect to the serviceability limit state of crack width is analysed using probabilistic methods. Uncertainties in basic variables and model outcomes are described. It is argued that structural design should comply with the criteria of codes of practice. However, these criteria may be inappropriate for assessment of existing structures where wider crack widths might be acceptable due to high repair costs or a limited required residual lifetime of a structure. The case study of a representative slab bridge illustrates theoretical principles. It is shown that reliability of the slab with respect to the crack width seems to satisfy the required target level recommended in EN1990. However, reliability level considerably decreases for large concrete covers and reinforcing bar diameters.

Název v anglickém jazyce

Uncertainties in Crack Width Verification of Reinforced Concrete Structures

Popis výsledku anglicky

The reliability of reinforced concrete structures designed according to Eurocodes with respect to the serviceability limit state of crack width is analysed using probabilistic methods. Uncertainties in basic variables and model outcomes are described. It is argued that structural design should comply with the criteria of codes of practice. However, these criteria may be inappropriate for assessment of existing structures where wider crack widths might be acceptable due to high repair costs or a limited required residual lifetime of a structure. The case study of a representative slab bridge illustrates theoretical principles. It is shown that reliability of the slab with respect to the crack width seems to satisfy the required target level recommended in EN1990. However, reliability level considerably decreases for large concrete covers and reinforcing bar diameters.

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

Risk, Reliability and Safety. Innovating Theory and Practice

ISBN

978-1-138-02997-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

2433-2438

Název nakladatele

Taylor & Francis Group

Místo vydání

Londýn

Místo konání akce

Glasgow

Datum konání akce

25. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000414164700345