64265 2025 eng 595 604 conferenceobject Springer Cham 1 -- -- -- Shake table tests have been used for a long time to understand the densification and fluidization of granular materials. While purely vertical shaking is quite unlikely to be found in vibration analysis when it comes to granular materials as soils, it has been found that the vertical vibration of railway bridge support structures can affect the fabric of the ballasted track on top. Starting from the experience at French railway lines with destabilizing track conditions on short bridges in high speed lines in the 1990s, various shake table test configurations have been used to investigate the destabiliza-tion of ballast at high acceleration levels. This article describes the effects of the variously investigated dynamic excitations of railway bridges on the bal-lasted track itself. Experimental Vibration Analysis for Civil Engineering Structures, EVACES 2025 - Volume 2 10.1007/978-3-031-96106-9_62 978-3-031-96105-2 11th International Conference on Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2025) Porto, Portugal 02.07.2025 publish 04.07.2025 22.12.2025 Matthias Baeßler Patrick Simon eng uncontrolled Infrastructure eng uncontrolled Ballasted track eng uncontrolled Ballast eng uncontrolled Railway bridge dynamics Ingenieurbau 7 Bauwerkssicherheit 7.2 Ingenieurbau Infrastruktur Verlagsliteratur Datei im Netzwerk der BAM verfügbar ("Closed Access") Verkehrsinfrastrukturen