• search hit 16 of 55
Back to Result List

Economically optimum structural design

  • Codes of practice aim to assure structures have acceptable risks to the public and the minimum total costs over the working life of a design. However, current codified criteria for structural design correspond to a broad range of reliability levels, specified for dissimilar reference periods even though their recalculation for different periods is uncertain due to unknown dependence of failure events in time. In this contribution, target reliability levels are specified on the basis of probabilistic risk optimization considering the objective function as a sum of various costs including effects of time to failure and discounting. A case study presents probabilistic optimization of the roof of a stadium for 4,000 spectators and illustrates the effect of the considered input parameters. Failure consequences and relative cost of safety measure are shown to be major factors affecting the optimum reliability level. Less important factors are the discount rate and working life. Large uncertainty in failure cost estimates seems to have only a marginal effect on derived optimum reliability levels.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Milan Holicky, Dimitris DiamantidisORCiDGND, Miroslav SýkoraORCiDGND
DOI:https://doi.org/10.2495/hpsm180151
Parent Title (English):High Performance and Optimum Design of Structures and Materials III (HPSM/OPTI 2018) ; Ljubljana, Slovenia 11.07.2018 - 13.07.2018
Subtitle (German):methodology and case study
Publisher:WIT
Editor:W. P. de Wilde, S. Hernández, S. Kravanja
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2018
Release Date:2022/05/05
Tag:failure consequences; probabilistic optimization; risk acceptance; stadium; target reliability,; total cost; working life
First Page:143
Last Page:153
Andere Schriftenreihe:WIT Transactions on The Built Environment ; 175
Institutes:Fakultät Bauingenieurwesen
research focus:Gebäude und Infrastruktur
OpenAccess Publikationsweg:Bronze Open Access - frei zugänglich aber ohne Lizenzhinweis
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG