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Vibrating barrier: a novel device for the passive control of structures under ground motion

A novel device, called vibrating barrier (ViBa), that aims to reduce the vibrations of adjacent structures subjected to ground motion waves is proposed. The ViBa is a structure buried in the soil and detached from surrounding buildings that is able to absorb a significant portion of the dynamic ener...

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Detalles Bibliográficos
Autores principales: Cacciola, P., Tombari, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society Publishing 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528655/
https://www.ncbi.nlm.nih.gov/pubmed/26345731
http://dx.doi.org/10.1098/rspa.2015.0075
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author Cacciola, P.
Tombari, A.
author_facet Cacciola, P.
Tombari, A.
author_sort Cacciola, P.
collection PubMed
description A novel device, called vibrating barrier (ViBa), that aims to reduce the vibrations of adjacent structures subjected to ground motion waves is proposed. The ViBa is a structure buried in the soil and detached from surrounding buildings that is able to absorb a significant portion of the dynamic energy arising from the ground motion. The working principle exploits the dynamic interaction among vibrating structures due to the propagation of waves through the soil, namely the structure–soil–structure interaction. The underlying theoretical aspects of the novel control strategy are scrutinized along with its numerical modelling. Closed-form solutions are also derived to design the ViBa in the case of harmonic excitation. Numerical and experimental analyses are performed in order to investigate the efficiency of the device in mitigating the effects of ground motion waves on the structural response. A significant reduction in the maximum structural acceleration of 87% has been achieved experimentally.
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spelling pubmed-45286552015-09-04 Vibrating barrier: a novel device for the passive control of structures under ground motion Cacciola, P. Tombari, A. Proc Math Phys Eng Sci Research Articles A novel device, called vibrating barrier (ViBa), that aims to reduce the vibrations of adjacent structures subjected to ground motion waves is proposed. The ViBa is a structure buried in the soil and detached from surrounding buildings that is able to absorb a significant portion of the dynamic energy arising from the ground motion. The working principle exploits the dynamic interaction among vibrating structures due to the propagation of waves through the soil, namely the structure–soil–structure interaction. The underlying theoretical aspects of the novel control strategy are scrutinized along with its numerical modelling. Closed-form solutions are also derived to design the ViBa in the case of harmonic excitation. Numerical and experimental analyses are performed in order to investigate the efficiency of the device in mitigating the effects of ground motion waves on the structural response. A significant reduction in the maximum structural acceleration of 87% has been achieved experimentally. The Royal Society Publishing 2015-07-08 /pmc/articles/PMC4528655/ /pubmed/26345731 http://dx.doi.org/10.1098/rspa.2015.0075 Text en http://creativecommons.org/licenses/by/4.0/ © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Research Articles
Cacciola, P.
Tombari, A.
Vibrating barrier: a novel device for the passive control of structures under ground motion
title Vibrating barrier: a novel device for the passive control of structures under ground motion
title_full Vibrating barrier: a novel device for the passive control of structures under ground motion
title_fullStr Vibrating barrier: a novel device for the passive control of structures under ground motion
title_full_unstemmed Vibrating barrier: a novel device for the passive control of structures under ground motion
title_short Vibrating barrier: a novel device for the passive control of structures under ground motion
title_sort vibrating barrier: a novel device for the passive control of structures under ground motion
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4528655/
https://www.ncbi.nlm.nih.gov/pubmed/26345731
http://dx.doi.org/10.1098/rspa.2015.0075
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