Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23205
Title: Response prediction of a 50 m guyed mast under typhoon conditions
Authors: Law, SS
Bu, JQ
Zhu, XQ
Chan, SL 
Keywords: Acceleration
Eigenvalue
Equivalent model
Finite element model
Guyed mast
Mode shape
Nonlinear
Typhoon
Wind load
Issue Date: 2006
Publisher: Techno Press
Source: Wind and structures, 2006, v. 9, no. 5, p. 397-412 How to cite?
Journal: Wind and structures 
Abstract: This paper presents the wind excited acceleration responses of a 50 m guyed mast under the action of Typhoon Dujuan. The response of the structure is reconstructed from using a full finite element model and an equivalent beam-column model. The wind load is modelled based on the measured wind speed and recommendations for high-rise structures. The nonlinear time response analysis is conducted using the Newton Raphson iteration procedure. Comparative studies on the measured and computed frequencies and acceleration responses show that the torsional vibration of the structure is significant particularly in the higher vibration modes after the first few bending modes. The equivalent model, in general, gives less accurate amplitude predictions than the full model because of the omission of torsional stiffness of the mast in the vibration analysis, but the root-mean-square value is close to the measured value in general with an error of less than 10%.
URI: http://hdl.handle.net/10397/23205
ISSN: 1226-6116
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