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Target Reliability for Existing Civil Engineering Systems

  • Specification of the target reliability levels is one of the key issues of the assessment of existing systems. ISO 2394:2015 indicate procedures for specification of the target reliability levels by optimisation of the total cost related to an assumed remaining working life of a structural system. These approaches are critically compared with human safety criteria and with recommendations of present standards. It appears that the requirement on the same target reliability levels for existing civil engineering systems as for newly designed is uneconomical. Decisions in the assessment can result in the acceptance of the actual state or in upgrade of the existing structure, two reliability levels are thus needed - the minimum level below which the structure is unreliable and should be upgraded, and the target level indicating an optimum upgrade strategy. When reliability of a system or its key component is verified (as compared to design of a common component), the target reliability index should be increased by about 0.5.

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Metadaten
Author:Miroslav SýkoraORCiDGND, Milan Holicky, Dimitris DiamantidisORCiDGND
DOI:https://doi.org/10.1109/SMRLO.2016.28
Parent Title (English):2016 Second International Symposium on Stochastic Models in Reliability Engineering, Life Science and Operations Management (SMRLO), 15-18 Feb. 2016, Beer Sheva, Israel
Publisher:IEEE
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2016
Release Date:2022/05/05
Tag:Economics; ISO Standards; Optimization; Reliability engineering; cost optimization; existing structural systems; human safety; safety; target reliability
First Page:109
Last Page:114
Institutes:Fakultät Bauingenieurwesen
Begutachtungsstatus:peer-reviewed
research focus:Gebäude und Infrastruktur
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG