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Preliminary design and parametric study of 1400 m partially earth-anchored cable-stayed bridge

Science China(Technological Sciences) 2010年第2期53卷 502-511页

作者： SUN Bin, CHENG Jin & XIAO RuCheng Department of Bridge Engineering, Tongji University, Shanghai 200092, China 1. Department of Bridge Engineering Tongji University Shanghai 200092 China

The preliminary design and parametric study of 1400 m partially earth-anchored cable-stayed bridge are described. Static per-formance of this new type of bridge is discussed. Compared with fully self-anchored cable-stayed bridge, its advantages in fin-ished state are summarized. Based on numerical calculation, effects of several structural parameters on static performance are presented.

关键词： partially earth-anchored cable-stayed bridge preliminary design parametric study

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Optimization of Dead Load State in earth-anchored Cable-Stayed Bridges

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Journal of Harbin Institute of Technology(New Series) 2015年第3期22卷 87-94页

作者： Bin Sun Rucheng Xiao Department of Bridge Engineering Tongji University

In order to determine the reasonable completed dead load state in earth-anchored cable-stayed bridges,a practical method is proposed. The method is based on the rigidly supported continuous beam method and the feasible zone method,emphasizing on the mutual effect between the self-anchored structural parts and the earth-anchored ones. Three cable-stayed bridge models are designed with the main spans of 1 400 m,including a partially earth-anchored cable-stayed bridge,a cable-stayed-suspension bridge and a fully selfanchored cable-stayed bridge,in which the C50 concrete and Q345 steel are adopted. The partially earthanchored cable-stayed bridge and the cable-stayed-suspension bridge secure lower compressive force in the girder than the fully self-anchored cable-stayed bridge by 25 percent at least. The same is for the material consumption of the whole bridge. Furthermore,the anchor volume is more than 20% lower in the partially earthanchored cable-stayed bridge than that in the cable-stayed-suspension bridge. Consequently,the practical span of cable-stayed bridges can be accordingly extended.

关键词： cable-stayed bridge partially earth-anchored cable-stayed bridge cable-stayed-suspension bridge reasonable completed dead load state

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