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Erfahrungen zur Modellierung und Bewertung von Eisenbahnbrücken mit Resonanzrisiko


Medium: journal article
Language(s): de 
Published in: Stahlbau, , n. 3, v. 79
Page(s): 188-198
DOI: 10.1002/stab.201001295

Experiences with modeling and evaluation of railway bridges with risk of resonance.

So far no experiences could be accomplished with bridges in the field of high-speed trains due to high stresses with possible appearances of resonance. This issue has to be treated very sensitive from the design stage on. Little tricks will help to improve the dynamic performance.
This contribution deals with the modeling of the impacts and the structure of the high speed train bridges as well as the evaluation of results of calculations. Problems of ultimate limit strength and fatigue strength are being discussed for some examples because dynamic factors as well as working load factors are no longer correct if resonance is occuring.

Keywords: design, fatigue, dynamic stress, high-speed, train, resonance

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