||The seismic performance of a structure depends not only on the performance of structural components but also on performance of the equipment and other in-house facilities. To maintain the functionality of a structure after a major earthquake, the important facilities have to be functional after the quake.
In this study, a full scale cooling tower system with vibration isolation springs will be experimentally investigated for its cyclic hysteretic behavior and dynamic behavior. Cyclic loading tests and shaking table tests are conducted. The damage mechanism and dynamic amplification factor of the vibration isolation spring are identified. In addition, since the cooling tower cannot be considered as a rigid body while some other mechanical/electrical system such as emergency power generator, the dynamic behavior and seismic vulnerability of the cooling tower are also investigated.