6. CONCLUSION
A four story building was designed and certified for the maximum response. From our
investigations the following can be concluded.
1) In the vibration isolated building supported by springs and visco-elastic dampers vibration and
structure borne noise levels caused by traffic will be effectively reduced.
2) The characteristics of the dampers can be modelled properly by a 4 parameter model
respectively those of the springs by a multi-direction shear spring.
3) The 3 dimensional analysis of the models shows a good coincidence with the shaking table test,
so that it can be used for analyzing a real building with a vibration isolation system.