When seismic waves start to penetrate a base of building structure, seismic dampers can decrease their damaging effect and improve the building's seismic performance . Some samples of seismic dampers design and implementation are presented in the images below:
Other pages 
- Chu, S.Y.; Soong, T.T.; Reinhorn, A.M. (2005). Active, Hybrid and Semi-Active Structural Control. John Wiley & Sons. ISBN 0470013524.