Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass

One of the common methods of the inactively controlling structures subject to earthquakes is the use of Tuned Mass Damping (TMD) systems. These dampers consist of three major parameters, namely mass, damping and stiffness. TMDs generally reduce the response domain by influencing a mode, which is mos...

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Autores principales:	Mehdi Babaei, Alireza Moniri
Formato:	article
Lenguaje:	EN
Publicado:	Pouyan Press 2018
Materias:	optimization irregular structures tuned mass dampers near-field earthquake far-field earthquake Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/de20b8fe65ad4e80ac7ba50fff8e392f
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spelling	oai:doaj.org-article:de20b8fe65ad4e80ac7ba50fff8e392f2021-11-11T11:51:30ZUse of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass2588-695910.22115/cepm.2018.137303.1035https://doaj.org/article/de20b8fe65ad4e80ac7ba50fff8e392f2018-04-01T00:00:00Zhttp://www.jcepm.com/article_65078_f11bc5b96cc7ae0a257316bcb5229d3e.pdfhttps://doaj.org/toc/2588-6959One of the common methods of the inactively controlling structures subject to earthquakes is the use of Tuned Mass Damping (TMD) systems. These dampers consist of three major parameters, namely mass, damping and stiffness. TMDs generally reduce the response domain by influencing a mode, which is most often the first mode of the structure. Since the TMD parameters remain constant during vibrations, it is very important to tune them correctly and optimally. In this study, a ten-story structural model with mass irregularities has been investigated. The mass ratio for the mass damper is assumed to be at 2%. Considering a nonlinear structure, to tune the frequency of the mass damper to its optimum value, proposed experimental relationships have been used.Both regular and irregular structures have been subjected to seven near-field and far-field earthquakes and amplified dynamic analysis from 0.1g to 1.0g with 0.1g steps and mass dampers has been used to evaluate the structural behavior. Based on the analyses outcomes, it can be seen that the TMD in structures with mass irregularities shows a better performance in the first 5 floors compared to the absence of dampers. In addition, by creating mass irregularities in the floor levels, the structure becomes more prone to damages in near-field earthquakes and the performance of the TMDs is better in earthquakes of far-field nature.Mehdi BabaeiAlireza MoniriPouyan Pressarticleoptimizationirregular structurestuned mass dampersnear-field earthquakefar-field earthquakeComputer engineering. Computer hardwareTK7885-7895ENComputational Engineering and Physical Modeling, Vol 1, Iss 2, Pp 83-94 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	optimization irregular structures tuned mass dampers near-field earthquake far-field earthquake Computer engineering. Computer hardware TK7885-7895
spellingShingle	optimization irregular structures tuned mass dampers near-field earthquake far-field earthquake Computer engineering. Computer hardware TK7885-7895 Mehdi Babaei Alireza Moniri Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
description	One of the common methods of the inactively controlling structures subject to earthquakes is the use of Tuned Mass Damping (TMD) systems. These dampers consist of three major parameters, namely mass, damping and stiffness. TMDs generally reduce the response domain by influencing a mode, which is most often the first mode of the structure. Since the TMD parameters remain constant during vibrations, it is very important to tune them correctly and optimally. In this study, a ten-story structural model with mass irregularities has been investigated. The mass ratio for the mass damper is assumed to be at 2%. Considering a nonlinear structure, to tune the frequency of the mass damper to its optimum value, proposed experimental relationships have been used.Both regular and irregular structures have been subjected to seven near-field and far-field earthquakes and amplified dynamic analysis from 0.1g to 1.0g with 0.1g steps and mass dampers has been used to evaluate the structural behavior. Based on the analyses outcomes, it can be seen that the TMD in structures with mass irregularities shows a better performance in the first 5 floors compared to the absence of dampers. In addition, by creating mass irregularities in the floor levels, the structure becomes more prone to damages in near-field earthquakes and the performance of the TMDs is better in earthquakes of far-field nature.
format	article
author	Mehdi Babaei Alireza Moniri
author_facet	Mehdi Babaei Alireza Moniri
author_sort	Mehdi Babaei
title	Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
title_short	Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
title_full	Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
title_fullStr	Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
title_full_unstemmed	Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass
title_sort	use of tuned mass dampers in controlling the vibrations of steel structures with vertical irregularity of mass
publisher	Pouyan Press
publishDate	2018
url	https://doaj.org/article/de20b8fe65ad4e80ac7ba50fff8e392f
work_keys_str_mv	AT mehdibabaei useoftunedmassdampersincontrollingthevibrationsofsteelstructureswithverticalirregularityofmass AT alirezamoniri useoftunedmassdampersincontrollingthevibrationsofsteelstructureswithverticalirregularityofmass
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Use of Tuned Mass Dampers in Controlling the Vibrations of Steel Structures with Vertical Irregularity of Mass

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