A practical approach for supporting decisions in bridge condition assessment and monitoring
2019 (English)In: 20th Congress of IABSE, New York City 2019: The Evolving Metropolis - Report, International Association for Bridge and Structural Engineering (IABSE) , 2019, p. 2137-2142Conference paper, Published paper (Refereed)
Abstract [en]
In this contribution a practical and rational decision-making approach is presented to be applied for common bridges typically managed by public authorities. The authors have developed a model with the intention to be applicable for practical cases for common bridges in the daily work of bride operators responsible for a large number of assets, yet still maintain the principles of more generic frameworks based on probabilistic decision-theory. Three main attributes of the verification of sufficiency of structural performance are considered, namely: 1) the level of sophistication of modelling performance, 2) the degree of verification and acceptance criteria in terms of dealing with uncertainties and consequences, 3) the extent of information is obtained and incorporated in the verification. The simplicity of the approach is demonstrated through an illustrative case study inspired by practical condition assessment decision problems. It is argued that in practical cases it may be desirable to utilize less advanced methods owing to constraints in resources or lack of reliable data (e.g. based on structural health monitoring or other on-site measurement techniques).
Place, publisher, year, edition, pages
International Association for Bridge and Structural Engineering (IABSE) , 2019. p. 2137-2142
Keywords [en]
Bridges, Condition assessment, Decision-making, Monitoring, Condition monitoring, Decision theory, Structural health monitoring, Uncertainty analysis, Acceptance criteria, Condition assessments, Generic frameworks, On-site measurement, Probabilistic decisions, Public authorities, Rational decision making, Structural performance, Decision making
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40877Scopus ID: 2-s2.0-85074455075ISBN: 9783857481659 (print)OAI: oai:DiVA.org:ri-40877DiVA, id: diva2:1376837
Conference
20th IABSE Congress, New York City 2019: The Evolving Metropolis, 4 September 2019 through 6 September 2019
Note
Funding details: Federal Agency for Science and Innovation, FASI; Funding details: Energimyndigheten; Funding details: Trafikverket; Funding details: Vetenskapsrådet, VR; Funding text 1: The authors acknowledge the financial support If the results of e2 are still unacceptable, there is still provided by the Swedish Transport Administration an option to apply level 3 assessment e3 with a (Trafikverket) and the strategic innovation 90.9% chance to provide acceptable results, i.e. programme InfraSweden2030, a joint effort of indicate sufficient structural performance. If that Sweden's Innovation Agency (Vinnova), the would be the case, the calculated probability of Swedish Research Council (Formas) and the failure would be 9.9188e5, leading to an expected Swedish Energy Agency (Energimyndigheten).
2019-12-102019-12-102019-12-10Bibliographically approved