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| Super Long Span Railway Bridges under - Design and Construction in China and Their Technical Characteristics |
| LIU Hui 1，XU Gong-yi 2 |
| 1 .China Railway Engineering Corporation, Beijing 100052，China; 2. China Railway Major Bridge Survey and Design Institute Co. Ltd.，Wuhan, Hubei 430050, China |
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Abstract The introductions are given in this paper to structure designs and their technical characteristics of four long span bridges under design and construction for heavy-haul and high-speed railway. It is pointed out that compared with the developed countries, the high-speed railway in China has large gaps and the railway bridge in China is far backward in span and structure type because of the limitation of financial resource. The previous technical standards of railway track。 various due to the vast territory and big differences of Iandform conditions in China. In addition , the live loads of railway and high-speed railway are different than those of other countries, so it is necessary to seek and design the suitable long span bridge for the railway condition in China based on learning the advanced technologies of foreign countries.
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Received: 29 August 2007
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2007, Vol. 24 
