The 3D finite element analysis were used in this
research to investigate surface ground
vibration due to a moving train. This 3D finite
element mesh includes the soil and bridge meshes
modeled by using the 3D 8-node element. After FEM
analysis, 1/3 octave band method was used in
frequency domain to compute the vibration from the
ground velocity in time domain. The resonant
vibration in this study can be clearly seen from the
finite element result. As an illustration of the
numerical analysis, the train speed v approaches the
Rayleigh wave velocity in supporting soil; a large
peak...