Hierarchical Modelling of Uncertainty in NDT Tests of Historic Steel Bridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00347163" target="_blank" >RIV/68407700:21110/20:00347163 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/20:00347163

Výsledek na webu

<a href="https://doi.org/10.35181/tces-2020-0015" target="_blank" >https://doi.org/10.35181/tces-2020-0015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.35181/tces-2020-0015" target="_blank" >10.35181/tces-2020-0015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hierarchical Modelling of Uncertainty in NDT Tests of Historic Steel Bridges

Popis výsledku v původním jazyce

Sustainable development can be supported by extending the service lives of the existing road and railway bridges. Preservation and upgrade should be based on improved surveys, monitoring, reliability assessment, 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 assessment based on NDT results and introduces the hierarchical modeling of the measurement uncertainty in hardness tests. Preliminary results suggest that the variability of ultimate strength can hardly be estimated on the basis of NDTs only. It seems that 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 the ultimate strength of a homogeneous material.

Název v anglickém jazyce

Hierarchical Modelling of Uncertainty in NDT Tests of Historic Steel Bridges

Popis výsledku anglicky

Sustainable development can be supported by extending the service lives of the existing road and railway bridges. Preservation and upgrade should be based on improved surveys, monitoring, reliability assessment, 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 assessment based on NDT results and introduces the hierarchical modeling of the measurement uncertainty in hardness tests. Preliminary results suggest that the variability of ultimate strength can hardly be estimated on the basis of NDTs only. It seems that 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 the ultimate strength of a homogeneous material.

Druh

J_ost - Ostatní články v recenzovaných periodicích

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 periodika

Transactions of the VSB - Technical University of Ostrava. Construction Series

ISSN

1804-4824

e-ISSN

1804-4824

Svazek periodika

20

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

36-39

Kód UT WoS článku

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EID výsledku v databázi Scopus

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