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Seismic performance evaluation of a tall building with dual lateral system consisting of moment frames and tuned mass dampers

Seismic performance evaluation of a tall building with dual lateral system consisting of moment... This study aims to evaluate the seismic performance of a 30-story steel special moment frame equipped with tuned mass dampers (TMDs) using six different strategies, which include conventional TMD, multi-TMD, and high-mass-ratio TMDs. The primary steel moment frame is designed in accordance with the latest code provisions, ensuring the satisfaction of element strength requirements, while relying on TMDs to control drift limits. The building models are subjected to a set of 11 far-field ground motions scaled to the DBE level. The seismic responses of the models, including maximum inter-story drifts, maximum story displacements, maximum story accelerations, and maximum base shears, are compared to clarify the effectiveness of each TMD retrofitting method. The results indicates that structural responses decrease with an increase in the mass ratio of TMDs. High-mass-ratio TMDs are found to be more effective in reducing lateral drifts compared to conventional TMDs, although controlling displacements at the isolation level could pose challenges. Furthermore, multi-TMDs appears to be an efficient solution in mitigating detrimental seismic effects when compared to the other types of TMDs used in this study. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal of Civil Engineering Springer Journals

Seismic performance evaluation of a tall building with dual lateral system consisting of moment frames and tuned mass dampers

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References (29)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
1563-0854
eISSN
2522-011X
DOI
10.1007/s42107-023-00752-9
Publisher site
See Article on Publisher Site

Abstract

This study aims to evaluate the seismic performance of a 30-story steel special moment frame equipped with tuned mass dampers (TMDs) using six different strategies, which include conventional TMD, multi-TMD, and high-mass-ratio TMDs. The primary steel moment frame is designed in accordance with the latest code provisions, ensuring the satisfaction of element strength requirements, while relying on TMDs to control drift limits. The building models are subjected to a set of 11 far-field ground motions scaled to the DBE level. The seismic responses of the models, including maximum inter-story drifts, maximum story displacements, maximum story accelerations, and maximum base shears, are compared to clarify the effectiveness of each TMD retrofitting method. The results indicates that structural responses decrease with an increase in the mass ratio of TMDs. High-mass-ratio TMDs are found to be more effective in reducing lateral drifts compared to conventional TMDs, although controlling displacements at the isolation level could pose challenges. Furthermore, multi-TMDs appears to be an efficient solution in mitigating detrimental seismic effects when compared to the other types of TMDs used in this study.

Journal

Asian Journal of Civil EngineeringSpringer Journals

Published: Jan 1, 2024

Keywords: Conventional TMD; High-mass-ratio TMD; Multi-TMD; Partial isolation; Seismic performance assessment

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