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Coupling coefficient and lateral vibration of slender suspension footbridges

Huang, Ming-Hui, Thambiratnam, David P., & Perera, Nimal J. (2008) Coupling coefficient and lateral vibration of slender suspension footbridges. Journal of Computers and Structures, 86(1-2), pp. 27-37.

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Abstract

Slender footbridges are known to suffer excessive lateral vibration which is not well understood at present. A suspension footbridge model with reverse profiled cables is proposed to investigate the vibration characteristics of slender shallow suspension footbridges and two types of cable configurations are considered in this paper. It is found that suspension footbridges with shallow cable profiles often have coupled vibration modes which can be described by a "coupling coefficient" defined as the ratio of vertical component to the lateral one. Numerical results show that the coupling coefficient has a significant effect on the lateral dynamic amplification factor (DAF), and larger DAF of lateral vibration is expected for the vibration mode with smaller coupling coefficient.

Impact and interest:

3 citations in Scopus
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2 citations in Web of Science®

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ID Code: 8808
Item Type: Journal Article
Additional Information: For more information, please refer to the journal's website (see hypertext link) or contact the author. Author contact details: d.thambiratnam@qut.edu.au
Keywords: footbridge, suspension, vibration mode, coupling coefficient, lateral vibration, dynamic amplification factor
DOI: 10.1016/j.compstruc.2007.06.002
ISSN: 0045-7949
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2007 Elsevier
Deposited On: 27 Jul 2007
Last Modified: 29 Feb 2012 23:43

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