TY - GEN
T1 - Lifetime assessment for historical cast steel bridge bearings
AU - Siebert, D.
AU - Mensinger, M.
N1 - Publisher Copyright:
© 2022 the Author(s).
PY - 2023
Y1 - 2023
N2 - At the end of the 19th century different types of cast steel bearings were used for railroad bridges. These have to be evaluated concerning their risk of brittle fracture and fatigue safety to guarantee a safe use in the future despite their advanced age. In this paper, the fracture mechanical methods used for the verification against brittle fracture and adequate fatigue safety are presented. Non-destructive testing on bridge bearings, numerical simulations, and analytical formulas for the determination of stress intensities at an assumed crack tip are used as a basis. Crack propagation calculations are conducted for determining the remaining lifetime by considering the interaction of forces due to train crossings by friction. A concept for the assessment of the usability of historical bridge bearings, even after a long period of use, is provided by which a safe and sustainable use of the considered bearings can be ensured.
AB - At the end of the 19th century different types of cast steel bearings were used for railroad bridges. These have to be evaluated concerning their risk of brittle fracture and fatigue safety to guarantee a safe use in the future despite their advanced age. In this paper, the fracture mechanical methods used for the verification against brittle fracture and adequate fatigue safety are presented. Non-destructive testing on bridge bearings, numerical simulations, and analytical formulas for the determination of stress intensities at an assumed crack tip are used as a basis. Crack propagation calculations are conducted for determining the remaining lifetime by considering the interaction of forces due to train crossings by friction. A concept for the assessment of the usability of historical bridge bearings, even after a long period of use, is provided by which a safe and sustainable use of the considered bearings can be ensured.
UR - http://www.scopus.com/inward/record.url?scp=85145616423&partnerID=8YFLogxK
U2 - 10.1201/9781003348443-313
DO - 10.1201/9781003348443-313
M3 - Conference contribution
AN - SCOPUS:85145616423
SN - 9781003348443
T3 - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
SP - 1908
EP - 1913
BT - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
A2 - Zingoni, Alphose
PB - CRC Press/Balkema
T2 - 8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022
Y2 - 5 September 2022 through 7 September 2022
ER -