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Passive Control of Tall Buildings Using Distributed Multiple Tuned Mass Dampers

  • The vibration control of the tall building during earthquake excitations is a challenging task due to their complex seismic behavior. This paper investigates the optimum placement and properties of the Tuned Mass Dampers (TMDs) in tall buildings, which are employed to control the vibrations during earthquakes. An algorithm was developed to spend a limited mass either in a single TMD or in multipleThe vibration control of the tall building during earthquake excitations is a challenging task due to their complex seismic behavior. This paper investigates the optimum placement and properties of the Tuned Mass Dampers (TMDs) in tall buildings, which are employed to control the vibrations during earthquakes. An algorithm was developed to spend a limited mass either in a single TMD or in multiple TMDs and distribute them optimally over the height of the building. The Non-dominated Sorting Genetic Algorithm (NSGA – II) method was improved by adding multi-variant genetic operators and utilized to simultaneously study the optimum design parameters of the TMDs and the optimum placement. The results showed that under earthquake excitations with noticeable amplitude in higher modes, distributing TMDs over the height of the building is more effective in mitigating the vibrations compared to the use of a single TMD system. From the optimization, it was observed that the locations of the TMDs were related to the stories corresponding to the maximum modal displacements in the lower modes and the stories corresponding to the maximum modal displacements in the modes which were highly activated by the earthquake excitations. It was also noted that the frequency content of the earthquake has significant influence on the optimum location of the TMDs.show moreshow less

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Metadaten
Document Type:Preprint
Author:MSc. Hamid Radmard RahmaniORCiD, Carsten KönkeGND
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.3859Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20190311-38597Cite-Link
URL:https://www.researchgate.net/publication/330508976_Seismic_Control_of_Tall_Buildings_Using_Distributed_Multiple_Tuned_Mass_Dampers
Language:English
Date of Publication (online):2019/03/10
Year of first Publication:2019
Release Date:2019/03/11
Publishing Institution:Bauhaus-Universität Weimar
Institutes:Fakultät Bauingenieurwesen / Institut für Strukturmechanik
Pagenumber:43
Tag:genetic algorithm; passive control; tall buildings; tuned mass dampers
GND Keyword:Schwingungsdämpfer; Hochbau
Dewey Decimal Classification:500 Naturwissenschaften und Mathematik
BKL-Classification:56 Bauwesen
Licence (German):License Logo Creative Commons 4.0 - Namensnennung (CC BY 4.0)