Feasibility Study on Aerodynamically Stable Suspension Bridge with Simplified Girder Structures
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Bibliographic Details
| Author(s): |
Hiroshi Katsuchi
Hitoshi Yamada Mayuko Nishio Yoko Okazaki |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015 | ||||
| Published in: | IABSE Conference Nara 2015 | ||||
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| Page(s): | 152-153 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2015 | ||||
| DOI: | 10.2749/222137815815774322 | ||||
| Abstract: |
Feasibility of an aerodynamically stable suspension bridge with a simplified girder was studied. Objective of the study is the development of an economically superior suspension bridge with 500- 1,000m span length. The study was carried out by a 1/40-scaled section model wind-tunnel test and structural analyses. The wind-tunnel test showed that an edge-girder type deck exhibited large amplitude torsional vortex-induced vibration as well as torsional flutter at a low wind speed. Accordingly, open grating deck, triangular faring, center stay and diagonal bracing as well as additional mass were tested to improve the aerodynamic stability. Finally, possible solution for an aerodynamically stable simplified girder structure was proposed. |
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| Keywords: |
wind tunnel test suspension bridge aerodynamic stability simplified deck open grating deck
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