Uncertainty in NDT Assessments of Historic Steel Bridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00344548" target="_blank" >RIV/68407700:21110/20:00344548 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/20:00344548

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Uncertainty in NDT Assessments of Historic Steel Bridges

Popis výsledku v původním jazyce

Sustainable development can be supported by extending the service lives of existing bridges. Preservation and upgrades should be based on improved structural assessments, monitoring, and strengthening methods. In the case of metallic materials, hardness methods (NDT) calibrated by a few tensile tests (DT) were shown to be associated with reasonable measurement uncertainty. This contribution discusses the current practice in NDT assessments and introduces the hierarchical modeling of the measurement uncertainty in hardness tests. Based on a limited database, preliminary results concerning measurement uncertainty in hardness methods suggest that variability of a material property can hardly be estimated on the basis of NDTs only. The systematic component of measurement uncertainty has a lower coefficient of variation (3%) than the random component (8%); the variability of the latter may thus often exceed the variability of ultimate strength of a homogeneous material.

Název v anglickém jazyce

Uncertainty in NDT Assessments of Historic Steel Bridges

Popis výsledku anglicky

Sustainable development can be supported by extending the service lives of existing bridges. Preservation and upgrades should be based on improved structural assessments, monitoring, and strengthening methods. In the case of metallic materials, hardness methods (NDT) calibrated by a few tensile tests (DT) were shown to be associated with reasonable measurement uncertainty. This contribution discusses the current practice in NDT assessments and introduces the hierarchical modeling of the measurement uncertainty in hardness tests. Based on a limited database, preliminary results concerning measurement uncertainty in hardness methods suggest that variability of a material property can hardly be estimated on the basis of NDTs only. The systematic component of measurement uncertainty has a lower coefficient of variation (3%) than the random component (8%); the variability of the latter may thus often exceed the variability of ultimate strength of a homogeneous material.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/DG18P02OVV033" target="_blank" >DG18P02OVV033: Metody pro zajištění udržitelnosti ocelových mostních konstrukcí industriálního kulturního dědictví</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of CUTE 2020 - The 3rd Int. Conf. on Sustainable Development in Civil, Urban and Transportation Engineering 2020

ISBN

978-80-248-4457-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

49-52

Název nakladatele

Vysoká škola báňská - Technická univerzita v Ostravě

Místo vydání

Ostrava

Místo konání akce

online

Datum konání akce

21. 10. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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