Print Email Facebook Twitter Systematic derivation of safety factors for the fatigue design of steel bridges Title Systematic derivation of safety factors for the fatigue design of steel bridges Author Maljaars, J. Leonetti, D. Hashemi, B. Snijder, H.H.B. Publication year 2022 Abstract This paper presents a probabilistic framework to derive the safety factors for fatigue of steel and composite steel concrete road bridges. Engineering models are used for the design and the safety factor is derived in such a way that the design meets the target reliability set by international Eurocode and ISO standards, estimated using measured data and advanced probabilistic models. Engineering model uncertainties and dynamic amplification factors are established through comparison of measurements and models. The value of visual inspections is quantified based on observations from practice and expert opinions. The safety factors are derived for Eurocode’s Fatigue Load Model 4 and Eurocode’s tri-linear S-N curve. The study shows that the safety factors for fatigue as currently recommended by the Eurocodes need to be raised. Subject BridgesDynamic amplificationFatigue safety factorModel uncertaintyPartial safety factorRandom fatigue limit modelVisual inspectionWeigh in motionCodes (standards)Fatigue of materialsISO StandardsSafety factorSteel bridgesDynamic amplificationEngineering modellingEurocodesFatigue safetyFatigue safety factorModeling uncertaintiesPartial safety factorRandom fatigue limitRandom fatigue limit modelVisual inspectionUncertainty analysisBuildings and Infrastructures2015 Urbanisation To reference this document use: http://resolver.tudelft.nl/uuid:8b8b0a02-0772-40f2-ad65-e2a54a9b7265 DOI https://doi.org/10.1016/j.strusafe.2022.102229 TNO identifier 970712 Publisher Elsevier B.V. ISSN 0167-4730 Source Structural Safety, 97 (97), 1-16 Document type article Files PDF maljaars-2022-systematic.pdf