Ground motion and structural vibration reduction using periodic wave barrier as a passive isolation

A. Niousha, M. Motosaka

Research output: Contribution to journalConference articlepeer-review

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-transmitted 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 on this result. The reduction of the ground and structure response due to ground-transmitted wave by using the proposed device is investigated. It is concluded that periodic wave barrier can reduce transmitted waves in the range of attenuation zone of the periodic element.

Original languageEnglish
Pages (from-to)191-200
Number of pages10
JournalAdvances in Earthquake Engineering
Volume9
Publication statusPublished - 2001 Dec 1
EventThird International Conference on Earthquake Resistant Engineering Structures, ERES III - Malaga, Spain
Duration: 2001 Sep 42001 Sep 6

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

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