Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6889
Title: Typhoon-Induced nonstationary buffeting response of long-span bridges
Authors: Hu, L
Xu, YL 
Huang, W
Liu, H
Keywords: Typhoon wind
Nonstationary buffeting response
Long-span bridge
Issue Date: Dec-2011
Publisher: Department of Civil and Structural Engineering and Department of Mechanical Engineering, The Hong Kong Polytechnic University.
Source: Dynamics for sustainable engineering : proceedings of the 14th Asia-Pacific Vibration Conference, 5-8 December 2011, Hong Kong, v. 1, p. 173-182 How to cite?
Abstract: This paper presents a framework for predicting nonstationary buffeting responses of long-span cable-supported bridges under typhoon loading. First, based on the measurement data of typhoon winds, a non-stationary typhoon wind model is proposed, which includes time-varying mean wind speed, mean wind speed profile, and evolutionary power spectral density (EPSD) function. Typhoon loading is correspondingly described as time-varying mean wind force, nonstationary buffeting forces associated with time-dependent aerodynamic coefficients, and self-excited forces characterized by time-dependent aerodynamic derivatives. The analytical method in the time-frequency domain is then developed to compute time-varying mean responses and EPSD-expressed dynamic responses. The proposed framework is finally applied to compute nonstationary buffeting responses of the Stonecutters cable-stayed bridge in Hong Kong under Typhoon Dujuan. The results display the distinct time-varying properties of mean and standard deviation responses of the bridge under Typhoon Dujuan.
URI: http://hdl.handle.net/10397/6889
ISBN: 978-962-367-731-8
Rights: Copyright ©2011 Department of Civil and Structural Engineering and Department of Mechanical Engineering, Hong Kong Polytechnic University
Posted with permission of the publisher.
Appears in Collections:Conference Paper

Files in This Item:
File Description SizeFormat 
Hu_Typhone_Induced_Nonstationary.pdf1.95 MBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

159
Last Week
2
Last month
Checked on Sep 17, 2017

Download(s)

138
Checked on Sep 17, 2017

Google ScholarTM

Check



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.