On the utilization of monitoring data in an ultimate limit state reliability analysis

S. Thöns*, M. H. Faber, W. Rücker

*Kontaktforfatter

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

4 Citationer (Scopus)

Abstract

This paper describes a structural reliability analysis utilizing monitoring data in the ultimate limit state with consideration of the uncertainties of the monitoring procedure. For this purpose the uncertainties of the monitoring data are modeled utilizing a new framework for the determination of measurement uncertainties. The approach is based on a process equation and statistical models of observations for the derivation of a posterior measurement uncertainty by Bayesian updating. This facilitates the quantification of a measurement uncertainty using all available data of the measurement process. For the reliability analysis in the ultimate limit state, monitoring data can be utilized as a loading model information and as proof loading, i.e. resistance model information. Both approaches are discussed with generic examples and it is shown that the modeling of monitoring data in a reliability analysis can result in a reduction of uncertainties and as a consequence in the reduction of the probability of failure. Furthermore, the proof loading concept is developed further to account for the uncertain characteristic of proof loading due to the measurement uncertainties which is consistent with the framework for the determination of measurement uncertainties. These approaches and findings can be utilized for the assessment of structures for life cycle extension and the design of monitoring systems

OriginalsprogEngelsk
TitelApplications of Statistics and Probability in Civil Engineering -Proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering
Antal sider8
Publikationsdato2011
Sider1762-1769
ISBN (Trykt)9780415669863
StatusUdgivet - 2011
Udgivet eksterntJa
Begivenhed11th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP - Zurich, Schweiz
Varighed: 1 aug. 20114 aug. 2011

Konference

Konference11th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP
Land/OmrådeSchweiz
ByZurich
Periode01/08/201104/08/2011
SponsorBundesamt fur Strassen (ASTRA), Walt + Galmarini AG, BKW FMB Energie AG, Det Norske Veritas AS, Swiss Federal Institute of Technology Zurich

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