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Incremental dynamic analysis of building with weak storey at top as TMD

Incremental dynamic analysis of building with weak storey at top as TMD Structures show inelastic non-linear behaviour under cyclic loads associated with natural activities like earthquakes and wind, which impart external kinetic energy to them, consuming the lateral movement of structures, such movement may be responsible for the failure or collapse of these structures. To prevent such a collapse, it is necessary to recognize the non-linear behaviour of the structure and adopt a suitable mechanism to control the response of them and this may be possible by dissipating the seismic energy which imparts on them. The study is devoted to the development of an efficient, feasible and economical tuned mass damper for moderately high buildings. This tuned mass damper (TMD) is in form of a weak storey at the top of the buildings for square and rectangle in the plan. Incremental dynamic analysis (IDA) was implemented to investigate the benefits of TMD on structural behaviour. Using ten earthquakes scaled up to a maximum target multiplier of two, with ten increments, damage measures such as storey drift. The fragility curves in this study are represented by lognormal distribution functions with two parameters (i.e., the mean spectral displacement and the standard deviation) and developed as a function of spectral acceleration (Sa). Comparison of the fragility curves indicated that the TMD is marginally effective in attenuating seismic structural response under various earthquake ground motions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal of Civil Engineering Springer Journals

Incremental dynamic analysis of building with weak storey at top as TMD

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References (39)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022. 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/s42107-022-00559-0
Publisher site
See Article on Publisher Site

Abstract

Structures show inelastic non-linear behaviour under cyclic loads associated with natural activities like earthquakes and wind, which impart external kinetic energy to them, consuming the lateral movement of structures, such movement may be responsible for the failure or collapse of these structures. To prevent such a collapse, it is necessary to recognize the non-linear behaviour of the structure and adopt a suitable mechanism to control the response of them and this may be possible by dissipating the seismic energy which imparts on them. The study is devoted to the development of an efficient, feasible and economical tuned mass damper for moderately high buildings. This tuned mass damper (TMD) is in form of a weak storey at the top of the buildings for square and rectangle in the plan. Incremental dynamic analysis (IDA) was implemented to investigate the benefits of TMD on structural behaviour. Using ten earthquakes scaled up to a maximum target multiplier of two, with ten increments, damage measures such as storey drift. The fragility curves in this study are represented by lognormal distribution functions with two parameters (i.e., the mean spectral displacement and the standard deviation) and developed as a function of spectral acceleration (Sa). Comparison of the fragility curves indicated that the TMD is marginally effective in attenuating seismic structural response under various earthquake ground motions.

Journal

Asian Journal of Civil EngineeringSpringer Journals

Published: Jul 1, 2023

Keywords: Tuned mass damper; Incremental dynamic analysis; Fragility curves; Probability of damage; Vibration control

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