Equivalent modal damping ratios of a composite tube-type tall building to dynamic wind loading
Author(s)
Author(s)
Huang, B. C.
Lam, K. M.
Cheung, Y. K.
Date Issued
1996
Publisher
Hindawi Publishing Corporation
Journal
Shock and Vibration
Volume
3
Issue
2
Start page
99
End page
105
Abstract
This article discusses computing methods of the equivalent modal damping ratio for a composite tube-type tall building. The equivalent damping ratio of a composite structure under wind-induced vibrations encompasses the combined effects from the different values of damping, mass, and stiffness of the external and internal tubes. A detailed method incorporating Rayleigh damping and the transfer matrix method is proposed for the determination of the equivalent modal damping ratio. A simplified method for engineering applications is also proposed. Results for a 40-story building are presented exemplifying the computation and relationships between the properties of the external and internal tubes.
SFU Affiliated Publication
No
Availability at SFU Library
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