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  4. An analytical study on the bending moment acting on the girder of a long-span cable-supported bridge suffering from cable failure
 
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An analytical study on the bending moment acting on the girder of a long-span cable-supported bridge suffering from cable failure

Publikationstyp
Journal Article
Date Issued
2018-07-15
Sprache
English
Author(s)
Shoghijavan, Mohammad  
Starossek, Uwe 
Institut
Baustatik B-4  
TORE-URI
http://hdl.handle.net/11420/2647
Journal
Engineering structures  
Volume
167
Start Page
166
End Page
174
Citation
Engineering Structures (167): 166-174 (2018-07-15)
Publisher DOI
10.1016/j.engstruct.2018.04.017
Scopus ID
2-s2.0-85045428672
In this study, the structural behavior of a long-span cable-supported bridge after the sudden rupture of one of its axial cables is of concern. Cable failure produces large bending moments on the girder of the bridge. Henceforth, the focus of this study is to find the “maximum bending moment” on the girder due to the cable failure. For this purpose, an analytical approach based on differential equations of the system will be used. Then, an approximation function for a simplified bridge model in a cable-loss scenario will be derived. The use of the least squares method is also applied to minimize the error of the approximation function. The proposed approximation function has been checked by numerical models, and its good accuracy has been proven. The results show that by increasing the ratio of the bending stiffness of the girder to the axial stiffness of the cables, cable failure produces a larger bending moment on the girder.
Funding(s)
Investigation of Progressive Collapse in Seismically Designed Steel Structures  
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