Systematic derivation of safety factors for the fatigue design of steel bridges

Autor: Johan Maljaars, Davide Leonetti, Bahman Hashemi, H.H. (Bert) Snijder
Přispěvatelé: Aluminium Structures, EAISI High Tech Systems, Steel Structures
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Structural Safety, 97:102229. Elsevier
ISSN: 0167-4730
Popis: 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.
Databáze: OpenAIRE