Analysis of the dynamic behaviour of the railway ballast bed - Influence of the oscillation amplitude and of other marginal conditions on the stiffness and the damping characterists

被引:4
|
作者
Kirchhofer, Johannes
Fink, Josef
机构
[1] Kirchhofer, Johannes
[2] Fink, Josef
关键词
Eisenbahnbrucke; Bruckendynamik; Modalanalyse; Unwuchterreger; railway bridge; dynamics of bridges; modal analysis; harmonic mass exciter; Versuche - Experimental set-ups; Stahlbruckenbau - Steel bridges;
D O I
10.1002/stab.201310050
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Der europaweite Aufbau eines interoperablen Eisenbahnhochgeschwindigkeitsnetzes stellt erhohte Anspruche an die bestehende Infrastruktur des Bahnbetriebes. Durch die zunehmende Reisegeschwindigkeit ergeben sich auch immer gro ss ere dynamische Anregungen der Bruckentragwerke. Um diesem Umstand Folge zu leisten, wurden in den letzen Jahren am Institut fur Tragkonstruktionen/Stahlbau der Technischen Universitat Wien zahlreiche experimentelle Untersuchungen zum Thema des dynamischen Verhaltens von Eisenbahnbrucken mit Schotteroberbau unternommen, um aus den experimentellen Daten neue Erkenntnisse uber das Schotterverhalten bei dynamischer Beanspruchung abzuleiten. Analysis of the dynamic behaviour of the railway ballast bed Influence of the oscillation amplitude and of other marginal conditions on the stiffness and the damping characterists. The pan-European establishment of an interoperable high-speed railway network places high demands on the existing railway infrastructure. Greater travelling speed results in increased dynamic excitations of the bridge structures. To investigate the dynamic interaction between the ballast superstructure and the structure of the bridge, experimental investigations were realised at the Institut fur Tragkonstruktionen/Stahlbau der Technischen Universitat Wien (Institute of Structural Engineering at the TU Vienna) during the last years.
引用
收藏
页码:370 / 377
页数:8
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