| Aerodynamic stability of cable-stayed-suspension hybrid bridges |
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| 作者姓名： | 张新军 孙炳楠 |
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| 作者单位： | School of Civil Engineering and Architecture，Zhejiang University of Technology，School of Civil Engineering and Architecture，Zhejiang University Hangzhou 310014，China，Hangzhou 310027，China |
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| 摘 要： | INTRODUCTION The cable-stayed-suspension (CSS) hybridbridge is developed from the traditional cable-stayedbridge and suspension bridge, and has some advan-tages of the two bridge types described as follows: 1. As compared with the suspension bridge of thesame span length, the suspension portion is greatlyshortened, so the tensional forces in the main cablesare greatly decreased, which helps to decrease theconstruction costs of the main cables and the massiveanchors, and the difficulty of…
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| 关 键 词： | 空气动力学 稳定性 钢缆斜拉桥 跨度 参数设计 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2004-12-16 |
Aerodynamic stability of cable-stayed-suspension hybrid bridges |
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| Zhang?Xin-jun,Sun?Bing-nan.Aerodynamic stability of cable-stayed-suspension hybrid bridges[J].Journal of Zhejiang University Science,2005,6(8):869-874. |
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| Authors: | Zhang Xin-jun Sun Bing-nan |
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| Institution: | 1.School of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou,China;2.School of Civil Engineering and Architecture,Zhejiang University,Hangzhou,China |
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| Abstract: | Three-dimensional nonlinear aerodynamic stability analysis was applied to study the aerodynamic stability of a cable-stayed-suspension (CSS) hybrid bridge with main span of 1400 meters, and the effects of some design parameters (such as the cable sag, length of suspension portion, cable plane arrangement, subsidiary piers in side spans, the deck form, etc.) on the aerodynamic stability of the bridge are analytically investigated. The key design parameters, which significantly influence the aerodynamic stability of CSS hybrid bridges, are pointed out, and based on the wind stability the favorable structural system of CSS hybrid bridges is discussed. |
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| Keywords: | Cable-stayed-suspension (CSS) hybrid bridge Aerodynamic stability Parametric analysis |
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