Equivalent nosing force for a steel railway bridge based on in situ measurements
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Détails bibliographiques
| Auteur(s): |
Lazar Georgiev
(University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria)
Lyubomir Zdravkov (University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria) Vatyu Tanev (University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria) Milcho Lepoev (University of Architecture, Civil Engineering and Geodesy, Sofia, Bulgaria) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Publié dans: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 1273-1279 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| DOI: | 10.2749/ghent.2021.1273 | ||||
| Abstrait: |
The weight and design speed of the railway vehicles increases in time. As a result, the values of design loads grow up. In old Bulgarian standard [1] the equivalent nosing force is prescribed as 60kN. In the present EN1991-2 [2] this value is 100kN. Meanwhile, a significant part of the very old bridges is not designed for nosing forces. In cases of long span between cross girders of the “open type” deck and lack of nosing braces, the load bearing capacity of longitudinal girders, concerning out of plane bending moments due to nosing forces, is insufficient. To investigate the value of equivalent nosing force are provided “in situ” measurements on the longitudinal girders of “open type” deck of a steel riveted railway bridge in exploitation in the Republic of Bulgaria. The strains and horizontal linear deformations are measured in the midspan of the longitudinal beams for real trains. The equivalent nosing force is calculated using developed procedures. |
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| Mots-clé: |
pont en acier déformations
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | Cette oeuvre ne peut être utilisée sans la permission de l'auteur ou détenteur des droits. |
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