Improvement of Performance Level of Steel Moment-Resisting Frames Using Tuned Mass Damper System

Autor: Masoud Dadkhah, Reza Kamgar, Heisam Heidarzadeh, Anna Jakubczyk-Gałczyńska, Robert Jankowski
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Applied Sciences, Vol 10, Iss 10, p 3403 (2020)
Druh dokumentu: article
ISSN: 2076-3417
DOI: 10.3390/app10103403
Popis: In this paper, parameters of the tuned mass dampers are optimized to improve the performance level of steel structures during earthquakes. In this regard, a six-story steel frame is modeled using a concentrated plasticity method. Then, the optimum parameters of the Tuned Mass Damper (TMD) are determined by minimizing the maximum drift ratio of the stories. The performance level of the structure is also forced to be located in a safety zone. The incremental dynamic analysis is used to analyze the structural behavior under the influence of the artificial, near- and far-field earthquakes. The results of the investigation clearly show that the optimization of the TMD parameters, based on minimizing the drift ratio, reduces the structural displacement, and improves the seismic behavior of the structure based on Federal Emergency Management Agency (FEMA-356). Moreover, the values of base shear have been decreased for all studied records with peak ground acceleration smaller or equal to 0.5 g.
Databáze: Directory of Open Access Journals