Abstract
This paper investigates the vibration characteristics of the seismic isolator system for the tower crane on the building. The presented isolator is composed of set of parallel links which provides spherical bearing, springs and dampers. The natural period and the damping coefficient of the tower crane can be tuned by these springs and dampers. As the results of experiment and numerical simulations, the presented seismic isolator is effective for the tower crane on the buildings.
