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Engineering    2017, Vol. 3 Issue (6) : 787 -794
Research |
Developments and Prospects of Long-Span High-Speed Railway Bridge Technologies in China
Shunquan Qin(),Zongyu Gao
China Railway Major Bridge Reconnaissance and Design Institute Co., Ltd., Wuhan 430050, China

With the rapid developments of the high-speed railway in China, a great number of long-span bridges have been constructed in order to cross rivers and gorges. At present, the longest main span of a constructed high-speed railway bridge is only 630 m. The main span of Hutong Yangtze River Bridge and of Wufengshan Yangtze River Bridge, which are under construction, will be much longer, at 1092 m each. In order to overcome the technical issues that originate from the extremely large dead loading and the relatively small structural stiffness of long-span high-speed railway bridges, many new technologies in bridge construction, design, materials, and so forth have been developed. This paper carefully reviews progress in the construction technologies of multi-function combined bridges in China, including combined highway and railway bridges and multi-track railway bridges. Innovations and practices regarding new types of bridge and composite bridge structures, such as bridges with three cable planes and three main trusses, inclined main trusses, slab-truss composite sections, and steel-concrete composite sections, are introduced. In addition, investigations into high-performance materials and integral fabrication and erection techniques for long-span railway bridges are summarized. At the end of the paper, prospects for the future development of long-span high-speed railway bridges are provided.

Keywords High-speed railway      Long-span bridges      Multi-function combined bridges      High-performance materials      Spatial structures with three cable planes      Integral fabrication     
Corresponding Authors: Shunquan Qin   
Just Accepted Date: 01 December 2017   Issue Date: 02 March 2018
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Shunquan Qin
Zongyu Gao
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Shunquan Qin,Zongyu Gao. Developments and Prospects of Long-Span High-Speed Railway Bridge Technologies in China[J]. Engineering, 2017, 3(6): 787 -794 .
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