STRUCTURE COMBINING BASE ISOLATION WITH VIBRATION CONTROL

摘要

PROBLEM TO BE SOLVED: To suppress deformation of a high-rise part and amplification of vibrations in a structure combining base isolation with vibration control, in which the high-rise part is constructed on a low-rise part supported in a base-isolated state.;SOLUTION: A bottom floor 70 of a high-rise part 50 is configured to be susceptible to deformation because of low rigidity. Thus, the bottom floor 70 during earthquakes serves as a vibration control floor to bring about a long period and centralized vibration control (centralized deformation), and the deformation of the high-rise part 50 and amplification of vibrations are suppressed. Consequently, the shock (acceleration) of the earthquake in the high-rise part 50, particularly, near a top floor 54 is reduced.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT