In this work, we design an experimental campaign to assess the attenuation performance of a medium-scale resonant wave barrier operating within the frequency range of 50–100 Hz. In particular, the dispersive properties of (i) bare soil, (ii) a configuration of “dead masses” placed over the soil surface, and (iii) a locally resonant barrier, also known as metabarrier, are compared numerically. The resonant barrier introduces a significant amplitude reduction of the surface waves in a narrow frequency range around the resonant frequency of the resonators. Multiple-frequency barriers are designed with increasing and decreasing resonant frequencies to enlarge the attenuation frequency band.

Medium-scale resonant wave barrier for seismic surface waves

Zeighami F.
Primo
Membro del Collaboration Group
;
Palermo A.
Secondo
Membro del Collaboration Group
;
Marzani A.
Ultimo
Membro del Collaboration Group
2021

Abstract

In this work, we design an experimental campaign to assess the attenuation performance of a medium-scale resonant wave barrier operating within the frequency range of 50–100 Hz. In particular, the dispersive properties of (i) bare soil, (ii) a configuration of “dead masses” placed over the soil surface, and (iii) a locally resonant barrier, also known as metabarrier, are compared numerically. The resonant barrier introduces a significant amplitude reduction of the surface waves in a narrow frequency range around the resonant frequency of the resonators. Multiple-frequency barriers are designed with increasing and decreasing resonant frequencies to enlarge the attenuation frequency band.
Zeighami F.; Palermo A.; Vratsikidis A.; Cheng Z.; Pitilakis D.; Marzani A.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/787372
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