Optimum Span Ratio of Cable Stayed-Suspension Bridges
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Bibliographic Details
| Author(s): |
Yong Woo Cho
(Civil Engineer, ENVICO Consultants, Seoul, Korea)
Yun Ki Sohn (Director, P.E., ENVICO Consultants, Seoul, Korea) Dong Ho Yoo (President, P.E., ENVICO Consultants, Seoul, Korea) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 18th IABSE Congress: Innovative Infrastructures – Towards Human Urbanism, Seoul, Korea, 19-21 September 2012 | ||||
| Published in: | IABSE Congress Seoul 2012 | ||||
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| Page(s): | 1568-1573 | ||||
| Total no. of pages: | 6 | ||||
| DOI: | 10.2749/222137912805112194 | ||||
| Abstract: |
A development for the new structural system having a superior wind resistance performance may be the alternative way for ensuring wind stability. The cable stayed-suspension bridge is one of alternative structural types. In this study, a parametric analysis was performed to examine static and dynamic behaviour of the cable stayed-suspension bridge according to variation of girder length supported by stay cable. The analytical result shows that the reasonable span ratio of stayed span over main span (stayed + suspended span) is between the range of 0.25~0.30. Also, structural performance of the cable stayed-suspension bridge with the span ratio of 0.25~0.30 is improved by more than 50% in comparison with a conventional suspension bridge. This improvement can lead to the reduction for the steel quantity of cable and stiffening girder and the size of anchorage. |
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| Keywords: |
parametric analysis cable stayed-suspension bridge
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