A type-B metro vehicle with an axle load of 12 tons is used in this example and the dynamic parameters are listed in Table 8.2.The speed of the train is 80 km/h.The FST structures consist of discontinuous floating slabs with a length of 20 m, a width of 2.8 m, and a height of 0.4 m supported by two rows of springs with a stiffness of 6.9 MN/m.