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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Iranian Society of Structrual Engineering (ISSE)
2017
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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) |
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non-linear damper impact damper single degree of freedom system sap2000 program Bridge engineering TG1-470 Building construction TH1-9745 |
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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 |
_version_ |
1718441663049760768 |