General strategies for seismic design of structure include increasing the rigidity and strength, increasing the energy absorption capacity by implementing energy dissipating devices and reducing the seismic demand by isolating the structure from its base. Isolation system provides the required ductility of the structural system by concentrating its displacements mainly on the isolator level, and separates the structure from the horizontal components of the ground motion. That would create a system whose its main frequency is much lower than the dominant frequency of the earthquake records and the natural frequency of the equivalent fixed-base structure. Because of growing tendency towards...
General strategies for seismic design of structure include increasing the rigidity and strength, increasing the energy absorption capacity by implementing energy dissipating devices and reducing the seismic demand by isolating the structure from its base. Isolation system provides the required ductility of the structural system by concentrating its displacements mainly on the isolator level, and separates the structure from the horizontal components of the ground motion. That would create a system whose its main frequency is much lower than the dominant frequency of the earthquake records and the natural frequency of the equivalent fixed-base structure. Because of growing tendency towards...