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[30781] Artykuł: Fatigue Strength of an Over One Hundred Year Old Railway BridgeCzasopismo: Baltic Journal of Road and Bridge Engineering Tom: 8, Zeszyt: 3, Strony: 166-173ISSN: 1822-427X Wydawca: VILNIUS GEDIMINAS TECH UNIV, SAULETEKIO AL 11, VILNIUS, LT-10223, LITHUANIA Opublikowano: 2013 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 30 Klasyfikacja Web of Science: Article DOI Web of Science Keywords: puddled steel  old steel  railway bridge  railway viaduct  fatigue  Finite Element Method FEM calculation  |
The paper analyzes the fatigue strength of steel sampled from a railway bridge with a service life of over hundred years. The fatigue strength of the material was used to analyze the structural capacity of this railway bridge with such life expectancy operating under variable cyclic loading. The assessment was made using the requirements of the current design codes. It was found that the load-bearing capacity of structures made of materials similar to the analyzed steel may decrease significantly. In case of railway bridges and viaducts made of puddled steel with a service life exceeding 100 years, a significant reduction in the fatigue strength under normal stress is expected. Under shear stress, however, a significant excess of fatigue strength is predicted.