» White Papers
Attenuation of Transmission of Vibrations and Ground-Borne Noise by
Means of Steel Spring Supported Low-Tuned Floating Trackbeds
In congested areas, the close vicinity of
rail tracks to buildings, structures and people or sensitive facilities
often leads to conflict in respect of the transmission of vibrations.
Reviewing various vibration attenuation measures, this whitepaper
illustrates different floating trackbed systems and describes their main
characteristics and design aspects. It also explains the construction
features as well as the installation of the elastic interfaces. Various
aspects of floating trackbed systems such as slab length, floating trackbeds
on steel springs, steel spring elements for floating trackbeds are covered.
Examples of floating trackbeds on steel springs which include trough-type
floating trackbed, and slab-type floating trackbed, slab-type floating
trackbed above ground are included. Providing the measurements performed
inside the Cologne tunnel on top of the floating slabs as well as on the
tunnel walls, the report concludes that with well designed low-tuned
floating trackbeds, high vibration attenuation levels can be reliably
achieved and those supported on steel springs, long slabs, or troughs
provide advantages in terms of construction, installation and performance.
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