Modeling impact damper in building frames using GAP element

Main effective factor in impact dampers to control vibration is to create disruption in structural oscillation amplitude using small forces induced by auxiliary masses to reduce strong vibrations. So far, modeling of the impact damper has been conducted solely through MATLAB software. Naturally, the...

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Autores principales: Seyed Mehdi Zahrai, Alireza Heisami
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Lenguaje:FA
Publicado: Iranian Society of Structrual Engineering (ISSE) 2017
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Acceso en línea:https://doaj.org/article/5da819462e914e3fbc17c66ebd992681
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spelling oai:doaj.org-article:5da819462e914e3fbc17c66ebd9926812021-11-08T15:46:28ZModeling impact damper in building frames using GAP element2476-39772538-261610.22065/jsce.2017.44359https://doaj.org/article/5da819462e914e3fbc17c66ebd9926812017-05-01T00:00:00Zhttps://www.jsce.ir/article_44359_14a31e34a80b13cf5eb6b31a1e8ff455.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Main effective factor in impact dampers to control vibration is to create disruption in structural oscillation amplitude using small forces induced by auxiliary masses to reduce strong vibrations. So far, modeling of the impact damper has been conducted solely through MATLAB software. Naturally, the functional aspects of this software are limited in research and development aspects compared to the common programs such as SAP2000 and ETABS. In this paper, a Single Degree of Freedom System, SDOF, is first modeled under harmonic loading with maximum amplitude of 0.4g in SAP2000 program. Then, the results are compared with numerical model. In this way, the proposed model is validated and the SDOF system equipped with an impact damper is investigated under the Kobe and Northridge earthquake records using SAP2000 model. Based on obtained results, the system equipped with an impact damper under the Kobe and Northridge earthquakes for structures considered in this study would have better seismic performance in which maximum displacements are reduced 6% and 33% respectively. Finally, impact dampers are modeled in a 4-story building structure with concentric bracing leading to 12% reduction in story drifts.Seyed Mehdi ZahraiAlireza HeisamiIranian Society of Structrual Engineering (ISSE)articlenon-linear damperimpact dampersingle degree of freedom systemsap2000 programBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 4, Iss 1, Pp 113-125 (2017)
institution DOAJ
collection DOAJ
language FA
topic non-linear damper
impact damper
single degree of freedom system
sap2000 program
Bridge engineering
TG1-470
Building construction
TH1-9745
spellingShingle non-linear damper
impact damper
single degree of freedom system
sap2000 program
Bridge engineering
TG1-470
Building construction
TH1-9745
Seyed Mehdi Zahrai
Alireza Heisami
Modeling impact damper in building frames using GAP element
description Main effective factor in impact dampers to control vibration is to create disruption in structural oscillation amplitude using small forces induced by auxiliary masses to reduce strong vibrations. So far, modeling of the impact damper has been conducted solely through MATLAB software. Naturally, the functional aspects of this software are limited in research and development aspects compared to the common programs such as SAP2000 and ETABS. In this paper, a Single Degree of Freedom System, SDOF, is first modeled under harmonic loading with maximum amplitude of 0.4g in SAP2000 program. Then, the results are compared with numerical model. In this way, the proposed model is validated and the SDOF system equipped with an impact damper is investigated under the Kobe and Northridge earthquake records using SAP2000 model. Based on obtained results, the system equipped with an impact damper under the Kobe and Northridge earthquakes for structures considered in this study would have better seismic performance in which maximum displacements are reduced 6% and 33% respectively. Finally, impact dampers are modeled in a 4-story building structure with concentric bracing leading to 12% reduction in story drifts.
format article
author Seyed Mehdi Zahrai
Alireza Heisami
author_facet Seyed Mehdi Zahrai
Alireza Heisami
author_sort Seyed Mehdi Zahrai
title Modeling impact damper in building frames using GAP element
title_short Modeling impact damper in building frames using GAP element
title_full Modeling impact damper in building frames using GAP element
title_fullStr Modeling impact damper in building frames using GAP element
title_full_unstemmed Modeling impact damper in building frames using GAP element
title_sort modeling impact damper in building frames using gap element
publisher Iranian Society of Structrual Engineering (ISSE)
publishDate 2017
url https://doaj.org/article/5da819462e914e3fbc17c66ebd992681
work_keys_str_mv AT seyedmehdizahrai modelingimpactdamperinbuildingframesusinggapelement
AT alirezaheisami modelingimpactdamperinbuildingframesusinggapelement
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