Mass-Spring-System for Urban Tram Line, Köln-Frechen - Bahnstrasse



Setting of spring element housing on plastic foil
Concrete pit with spring elements and rebars
Concrete pit with spring elements and rebars
Concrete pit with floating trackbed
Inserting spring elements into the trackbed slab
Inserting spring elements into the trackbed slab
Spring supported track bed with a top-layer of ballast
Project
Köln - Frechen, Bahnstraße
Floating trackbed system for an urban tram line
Vibration Isolation System
GERB spring elements, Type GSI
   
Design axle load
10 t
Commissioning
1999
   
Mass-Spring-System
Length: 29 m
vertical system natural frequency: 6,5 Hz
Design velocity:
50 km/h
Trackbed mass:
2.8 t/m2
Owner
Häfen und Güterverkehr Köln Aktiengesellschaft (HGK)
   
Construction Details
Spring supported in-situ concrete slab, rail S54 fixed directly on the slab, afterwards a layer of approx. 22cm ballast was added
Vibration Consultant
IBU Essen, Germany