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  5. An integrated damping system for tall buildings
 
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An integrated damping system for tall buildings
File(s)
Accepted_An Integrated Damping System for Tall Buildings.pdf (6.33 MB)
Accepted version
Author(s)
Martinez‐Paneda, Miguel
Elghazouli, Ahmed Y
Type
Journal Article
Abstract
This paper proposes an integrated damping system that aims at providing relatively high damping levels through the mobilization of a proportion of the structure's own mass. This offers significantly higher mass levels and, consequently, considerably more damping compared to conventional tuned mass dampers. Fluid viscous dampers are used to control accelerations in parallel with springs to resist the static loads applied to the moving mass. The advantages of employing relatively large mass levels in achieving considerable damping and reducing sensitivity to tuning are first analyzed using an idealized two degree of freedom structural representation. This is then followed by a description of the proposed “integrated damping system,” which is illustrated through a case study of a 250‐m tall building. The benefits of the proposed damping system are demonstrated through several numerical parametric assessments, as well as a selected suite of earthquake records. For the adopted case study, it is shown that, besides reducing the level of perceivable accelerations, the use of the suggested arrangement can offer an equivalent damping exceeding 50% of the critical damping, resulting in more than 40% reduction in the wind loads as well as over 60% reduction in displacement and acceleration response under seismic excitations.
Date Issued
2020-02-21
Date Acceptance
2020-02-13
Citation
The Structural Design of Tall and Special Buildings, 2020, 29 (7), pp.1-26
URI
http://hdl.handle.net/10044/1/77161
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/tal.1724
DOI
https://www.dx.doi.org/10.1002/tal.1724
ISSN
1541-7794
Publisher
Wiley
Start Page
1
End Page
26
Journal / Book Title
The Structural Design of Tall and Special Buildings
Volume
29
Issue
7
Copyright Statement
© 2020 John Wiley & Sons, Ltd. This is the accepted version of the following article: Martinez‐Paneda, M, Elghazouli, AY. An integrated damping system for tall buildings. Struct Design Tall Spec Build. 2020;e1724, which has been published in final form at https://doi.org/10.1002/tal.1724
Identifier
https://onlinelibrary.wiley.com/doi/full/10.1002/tal.1724
Subjects
Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Engineering
damping systems
dynamic response
energy dissipation
multistory structures
passive damping
tall buildings
TUNED MASS DAMPERS
OPTIMUM ABSORBER PARAMETERS
WIND-INDUCED MOTION
VIBRATION CONTROL
HYBRID CONTROL
HIGHRISE BUILDINGS
OPTIMIZATION
PERFORMANCE
DESIGN
MITIGATION
Civil Engineering
0905 Civil Engineering
Publication Status
Published online
Date Publish Online
2020-02-21
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