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Parametric Study on Responses of a Self-Anchored Suspension Bridge to Sudden Breakage of a Hanger
Joint Authors
Qiu, Wenliang
Jiang, Meng
Huang, Cailiang
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-12
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The girder of self-anchored suspension bridge is subjected to large compression force applied by main cables.
So, serious damage of the girder due to breakage of hangers may cause the collapse of the whole bridge.
With the time increasing, the hangers may break suddenly for their resistance capacities decrease due to corrosion.
Using nonlinear static and dynamic analysis methods and adopting 3D finite element model, the responses of an actual self-anchored suspension bridge to sudden breakage of hangers are studied in this paper.
The results show that the sudden breakage of a hanger causes violent vibration and large changes in internal forces of the bridge.
In the process of the vibration, the maximum tension of hanger produced by breakage of a hanger exceeds 2.22 times its initial value, and the reaction forces of the bearings increase by more than 1.86 times the tension of the broken hanger.
Based on the actual bridge, the influences of some factors including flexural stiffness of girder, torsion stiffness of girder, flexural stiffness of main cable, weight of girder, weight of main cable, span to sag ratio of main cable, distance of hangers, span length, and breakage time of hanger on the dynamic responses are studied in detail, and the influencing extent of the factors is presented.
American Psychological Association (APA)
Qiu, Wenliang& Jiang, Meng& Huang, Cailiang. 2014. Parametric Study on Responses of a Self-Anchored Suspension Bridge to Sudden Breakage of a Hanger. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1049905
Modern Language Association (MLA)
Qiu, Wenliang…[et al.]. Parametric Study on Responses of a Self-Anchored Suspension Bridge to Sudden Breakage of a Hanger. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1049905
American Medical Association (AMA)
Qiu, Wenliang& Jiang, Meng& Huang, Cailiang. Parametric Study on Responses of a Self-Anchored Suspension Bridge to Sudden Breakage of a Hanger. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1049905
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049905