Ground Motion And Structural Vibration Reduction Using Periodic
Wave Barrier As A Passive Isolation
Author(s)
A. Niousha, M. Motosaka
Abstract
Ground motion and structural vibration reduction
using periodic wave barrier as a passive isolation
A. Niousha, M. Motosaka
Disaster Control Research Center, Graduate School of Engineering,
Tohoku University, Japan
Abstract
Seismic waves, machine foundation, traffic or blasting generates waves that
adversely affect nearby structures and the operation of sensitive equipment.
Various countermeasures have been advised to reduce the ground-trans-
mitted vibration, conventionally the installation of trench, base isolation or
active mass driver. In this study, the periodic wave barrier is introduced as a
passive isolation to reduce the ground transmitted wave and the structural
vibration. A one-dimensional soil model is first investigated for incident
shear wave. The propagation and the attenuation zone of the periodic
element are discussed. The effect of barrier's numbering, contrast, width and
spacing are parametrically studied. A more realistic two-dimensional model
is made based o
Keywords
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